Thursday, May 20, 2010

The dropout crisis


The United States faces a huge dropout crisis. In some cities the high school graduation rate is less than 50% -- sometimes as low as 25%. And this means devastating poverty for the dropouts, as well as continuing social blight for their communities. We might say, though, that the graduation rate is only the symptom of the problem; the causes include high poverty neighborhoods and failed elementary and middle schools, and the effects extend far into the future.

So in a way, it is too simple to call it a dropout crisis; rather, it is a schooling crisis (extending back into the early grades) and a poverty crisis (extending forward for one or more generations for the young people who are affected and their eventual children). And it is a particularly serious national problem, at the beginning of a century where the most important resource will be educated people and talented creators. How can we be optimistic about the prospects for innovation and discovery in the American economy when we are wasting so much human talent?

The crisis itself is widely recognized (link). What we haven't figured out yet is a success strategy for resolving the current system of failure. Is it even possible to envision a system of public education in high-poverty cities that actually succeeds in achieving the 90-90-90 goal (90% graduation rate, 90% achievement at grade level, 90% continuation to post-secondary education)? Or are we forced to conclude that the problem is too great, and that 50% of inner-city children are doomed to lives of continuing poverty and social blight? If so, the future is dim for our county as a whole: rising crime, social problems, civil conflict, and increasingly gated communities are our future. And, inevitably, our economic productivity as a country will falter. So the whole country loses if we don't solve this problem.

The current environment for solving the schooling problems is unpromising. Urban school systems across the country face staggering fiscal crises -- a $300 million deficit in Detroit, $480 million in Los Angeles, and similar amounts in other cities. So school systems are forced into a cycle of cost-cutting, removing some of the critical resources that might have addressed the failure for their students. And the school systems themselves -- administrators, teachers, and unions -- are all too often resistant to change. The current Federal educational reform program, Race to the Top (link), is designed to stimulate new thinking and more successful reforms; but the jury is out.

The situation requires a whole-hearted commitment to solving this problem. Solutions will require the best available research on learning and schooling; they will require substantial resources; and they will require significant collaboration among a number of stakeholders. And the solutions can't be simply one-off demonstration projects; we need a national strategy that will work at scale. There are a million new drop-outs a year. We need to reduce that number by 80% in the next decade if we are to be successful.

These are pretty daunting challenges. So consider this proposed solution that seems to have the ability to satisfy each of these constraints. This is the Diplomas Now program that is becoming increasingly visible in education reform and the press (link). The program is a research-based strategy for helping children make academic progress at every step of the way. It recognizes the need for much more intensive adult contact for at-risk children. It acknowledges the need for providing a host of community services in high-poverty schools. And it places high academic standards at the center of the strategy.

The program is based on important research undertaken by Robert Balfanz at Johns Hopkins University (link). Balfanz finds that it is possible to identify high school drop-outs very early in their school experience. He identifies the ABC cluster of criteria as diagnostic of future high school failure: absenteeism, behavior, and course performance. Sixth-graders who show any one of these characteristics have only a 25% likelihood of completing high school. So, he reasons, let's use these early warning signs and intervene with children when there is still an opportunity to get them back on track. This requires careful tracking of each child, and it requires that schools have the resources to address the problems these children are having in the early grades. But Balfanz argues that the payoff will be exactly what we need: these children will be back on track and will have a high likelihood of graduating from high school.

So what does the strategy need? First, it needs a good and well-implemented tracking system. Second, it needs teachers and principals who have the professional development needed to allow them to assist the progress of their students. But it needs two other things as well: it needs a corps of dedicated young people who will function as fulltime near-peer tutors and mentors for at risk children. And it needs a set of wrap-around social and community services that are available to children and their families in the schools.

This is where community service and stakeholder collaboration come in. CityYear is a vibrant national youth service organization within Americorps (link). CityYear has always placed involvement in high-poverty schools at the core of its service agenda for the young people who give a year of their lives to change the world. Now CityYear has entered into agreements with the Diplomas Now program to support focused interventions in a growing number of schools in a number of cities. (Here is a CityYear report.) And Communities in Schools is a national organization that is able to provide the other piece (link). Communities in Schools provides several social work professionals and supervision for each DN school. Finally, the Talent Development program at Johns Hopkins provides training for DN teachers and administrators.

The Diplomas Now model has now been applied in a number of schools around the country, and the results are highly encouraging (link). Results for a sixth grade class in Feltonville School in Philadelphia are representative: from 2008 to 2009 absenteeism dropped by 80%, negative behavior dropped by 45%, and the number of students with failures in math or english dropped by about 80%. Participants and observers attribute the successes measured here to the synergies captured by the combined approach. But a key factor is the presence of caring young adults in the lives of these children. (video)

These are amazing and encouraging results. But we have to ask the question, what would it take to scale this solution for all of Los Angeles, Detroit, or Chicago? The answer is that it will require a major investment. But it will also return many times that amount in increased productivity and lower incarceration and social service costs.

Here are some estimates from CityYear planning for the challenge of scaling up the Diplomas Now solution. The goal the organization has adopted is an ambitious one: to have CityYear teams in all schools that generate 50% of dropouts in the city. In Detroit CityYear teams currently serve 8 schools and 4,600 students with 65 corps members. In order to reach the goal, CityYear Detroit will need to expand to 39 schools, serving 26,290 students, including 9,400 at-risk students, with 403 corps members. This expansion will be costly; federal, school, and private funding would increase from $3.8 million to $12.8 million. But the five-year return on investment is massive. A Northeastern University study estimates the benefit of converting one dropout into a graduate at $292,000, aggregating to a net social benefit of $686,000,000. The returns are enormous. Nationally the total annual cost of the CityYear program would be just under $200 million by 2016, with other program costs perhaps doubling this amount. But the value of success is a staggering number: net social benefits from reducing the drop-out rate estimated in the range of $10 billion.

So it seems that we now know that the skepticism that is often expressed about inner-city school failure is misplaced. There are intensive strategies for success that should work in any school. There is a cost to these programs. But there are many thousands of young people who are eager to pick up the responsibility. Their civic engagement and pragmatic idealism are inspiring. We need strong support from our government, foundations, and private sources in order to make school failure a thing of the past.

(Here are a couple of earlier posts on this topic; post, post, post.)

Wednesday, May 19, 2010

Red shirts as a social movement


The redshirts in Thailand have moved onto the world stage in the past several months.  Massive protests in Bangkok have stymied the Thai government and have held the army and police forces at bay for months.  Demands from redshirt leaders and posters include removal of the military-backed government of Prime Minister Abhisit and a commitment to prompt elections.  In the background seems to be a demand for a shift in the playing field in Thailand, with meaningful attention to social inequalities.  And exiled former prime minister Thaksin plays a continuing role in the background, offering video messages at protest meetings and veiled instructions to redshirt demonstrators.  Efforts at clearing the protest encampment led to dozens of deaths in April, and a major crackdown this week seems to have succeeded in breaking the protest in Bangkok with another handful of deaths and a great deal of arson in the center of the city.  But there are indications that protests and violence may spread to other parts of Thailand.

What all of this implies is the presence of a major social movement in Thailand, supported by many thousands of rural and urban Thai people, mostly from the lower end of the socioeconomic order.  This much is clear through the journalism that has developed around the current turmoil.  What we haven't yet seen, though, is a careful analysis of the dynamics and processes of this movement.  How is it organized?  How are followers recruited?  What resources are leaders able to call upon?  What are the grievances that motivate potential followers?  The time is ripe for a careful, analytical study of the movement.  And intellectual resources exist for such a study, in the form of the extensive literature on social movements and contention that exists in the current social science literature.  However, that literature largely focuses on social movements in the democratic West, and scholars in this tradition generally lack deep knowledge of the politics of Asian countries.  So we need to find ways of crossing boundaries if we are to make use of social movement theory in the context of the Redshirt movement.

One of the most important voices in the current literature on social contention is Doug McAdam.  His study of the black insurgency in the United States is a sophisticated and extensive analysis of the dynamics of the US civil rights movement in the South (Political Process and the Development of Black Insurgency, 1930-1970), and perhaps there are some parallels between the two movements.  McAdam's work is entirely focused on examples of protests and mobilization in the United States.  But in the introduction to the second edition of this work he provides a clear and powerful statement of the state of the field, and his synthesis of the best current thinking about how to analyze social movements is of general interest.  So perhaps this is one place to begin the search for an empirically and theoretically informed study of the Redshirt movement.

Here are a few of McAdam's central points.
Increasingly, one finds scholars from various countries and nominally different theoretical traditions emphasizing the importance of the same three broad sets of factors in analyzing the origins of collective action.  These three factors are: 1) the political opportunities and constraints confronting a given challenger; 2) the forms of organization (informal as well as formal) available to insurgents as sites for initial mobilization; and 3) the collective processes of interpretation, attribution and social construction that mediate between opportunity and action. (viii)
Or in short: political opportunities, mobilizing structures, and framing processes (viii-ix).  Here are brief descriptions of each of these axes of analysis.
Expanding political opportunities.  Under ordinary circumstances, excluded groups or challengers face enormous obstacles in their efforts to advance group interests....  But the particular set of power relations that define the political environment at any point in time hardly constitutes an immutable structure of political life.  Instead, the opportunities for a challenger to engage in successful collective action are expected to vary over time.  It is these variations that are held to help shape the ebb and flow of movement activity. (ix)
Extant mobilizing structures.  ... By mobilizing structures I mean those collective vehicles, informal as well as formal, through which people mobilize and engage in collective action.  This focus on the meso-level groups, organizations, and informal networks that comprise the collective building blocks of social movements constitutes the second conceptual element in this synthesis. (ix)
Framing or other interpretive processes. ... Mediating between opportunity, organization and action are the shared meanings, and cultural understandings -- including a shared collective identity -- that people bring to an instance of incipient contention.  At a minimum people need to feel both aggrieved about some aspect of their lives and optimistic that, acting collectively, they can redress the problem. (ix-x)
So how can these basic sets of questions help in forming a careful analysis of the Redshirt movement?  McAdam's general point is that these angles of analysis have emerged as key within dozens of studies of collective action and social movements.  They represent an empirically informed set of theoretical perspectives on collective action.  We shouldn't look at these three sets of factors as setting a blueprint for collective action; but it is a good bet that new instances of social movements will involve each of these factors in some way.

Putting the point another way: we can read McAdam's synthesis as posing a research framework in terms of which to investigate a new example of a social movement -- whether the Falun Gong in China, the monks' movement in Burma, the Maoist insurgency in India, or the Redshirt movement in Thailand.  It is certainly possible that a given case won't fit very well into this set of questions; but McAdam's hunch is that this is unlikely.

So it would be very interesting to initiate a careful study of the Redshirt movement along these lines.  Such a study would need to review the shifting circumstances of political power over the past ten years or so in Thailand, both at the national level and at the state level.  Certainly the military overthrow of the Thaksin government created "ebbs and flows" of the sort to which McAdam refers.  And the Yellowshirt demonstrations of 2008 also shifted the fields of power in Thailand.  What openings did these various events create for Redshirt mobilization?  Second, we would need to know a great deal more about the local and regional organizations through which Redshirt mobilization occurs.  What are those organizations?  What resources do they control?  How do they manage to succeed in mobilizing and transporting many tens of thousands of rural supporters to the center of Bangkok?  And how do they manage to continue to supply and motivate these supporters through several months of siege?  Finally, and most importantly, we need to know much more about the mentality and social identities of the Redshirts.  What do they care about?  What are their local grievances?  What are their most basic loyalties and motivations?  McAdam points out that most studies of successful social movements have found that activists and supporters usually possess dense social networks and deep connections to their communities; will this turn out to be true for the Redshirt movement?

There is a cynical reading of the movement that would almost certainly not stand up to this kind of careful analysis: the idea that the Redshirts are simply the pawns of Thaksin, and that Thaksin's financial support to individual followers is sufficient to explain their behavior.  This doesn't seem credible on its face; it makes the movement out to be an automaton controlled by a distant leader.  Surely Thaksin plays a role; but equally certainly, leaders and followers have their own issues, agendas, and passions.

The kind of study suggested here does not yet exist, so far as I can tell.  It would be necessary to pull together a great deal of local knowledge about the social constituencies and local organizations that are involved in the movement -- information that isn't presented in any detail in the journalism that has been offered to date about events in Thailand.  But once a researcher has pulled together preliminary answers to questions in each of these areas, he/she will be much better positioned to answer pressing questions of the day: will the movement survive the repression in Bangkok this week?  Will it spread to other locations in Thailand?  Will the government succeed in preserving the status quo?  And schematic answers to these questions would provide a much more substantial basis for understanding the movement and its location within Thai society.

Here is one small contribution to the effort.  McAdam emphasizes the importance of "identity shift" in the evolution of a social movement.  He thinks that a very substantial part of a movement's strength and staying power derives from the new forms of collective identity that it creates.  There is evidence of shifting identities along these lines within the Redshirt movement.  Consider this interesting analysis of language from Thailand's Troubles:
ไพร่, which sounds like prai, was a dusty word which rarely saw the light of day. Now on every other t-shirt worn by people of the Red movement printed large and proud is prai.
Prai has perhaps a dozen meanings including cad, citizen, plebian and proletariat. In the context of the Red movement protest, which includes an element of class conflict and rebellion over inequality, prai frequently means commoner and peasant.
This sounds quite a bit like a shift of identity, from disregarded poor person to proud member of a movement.

(Several earlier posts have focused on events in Thailand.  Here is a post from about a year ago on civil unrest in Thailand.  See also the social movements thread in UnderstandingSociety.)

Sunday, May 16, 2010

Underdetermination and truth


We say that a statement is underdetermined by available facts when it and an alternative and different statement or theory are equally consistent with that body of facts. It may be that two physical theories have precisely the same empirical consequences -- perhaps wave theory and particle theory represent an example of this possibility. And by stipulation there is no empirical circumstance that could occur that would distinguish between the two theories; no circumstance that would refute T1 and confirm T2. And yet we might also think that the two theories make different assertions about the world. Both statements are underdetermined by empirical facts.

Pierre Duhem further strengthened the case for the underdetermination of scientific theories through his emphasis on the crucial role that auxiliary hypotheses play in the design of experiments in The Aim and Structure of Physical Theory.  Individual theoretical hypotheses -- "light is a wave," "people behave on the basis of their class interests" -- do not have definite empirical implications of their own; rather, it is necessary to bring additional assumptions into play in order to design experiments that might support or refute the theoretical hypothesis.  And here is the crucial point: if an experimental result is inconsistent with the antecedent theory and auxiliary hypotheses, we haven't demonstrated that the hypothesis itself is false, but rather that at least one among the premises is false. And it is possible to save the system by modifying the theory or one or more of the auxiliary assumptions.  As W. V. O. Quine put the point, scientific knowledge takes the form of a "web of belief" (The Web of Belief).  

On the extreme assumption that both statements have precisely the same consequences, we might infer that the two theories must be logically equivalent, since the logical content of a theory is the full range of its deductive consequences and the two theories are stipulated to have the same deductive consequences. So it must be possible to derive each theory from the other. And if T1 and T2 are logically equivalent, then we wouldn't say that they really express different assertions about the world.

A more problematic case is one where two theories have distinct bodies of deductive consequences; but where the subset of deductive consequences that are empirically testable are the same for the two theories. In this situation it is no longer the case that the two theories are logically equivalent but rather "empirically equivalent." And here it would be credible to say that the two make genuinely different assertions about the world -- assertions that cannot be resolved empirically.

A third and still weaker case is one in which T1 and T2 have distinct consequences for both theoretical statements and a specific subset of empirical statements; but they overlap in their consequences for a second body of empirical statements. And consider this possibility: Because a given level of instrumentation and inquiry limit the types of empirical statements that can be evaluated, this body of data does not permit us to differentiate between the theories. So we can distinguish between "currently testable" and "currently not testable". For this third case, we are to imagine that T1 and T2 have distinct implications for theoretical statements and for currently not testable empirical statements; but they have the same consequences for currently testable statements. In this case, T1 and T2 are currently underdetermined -- though advances in instrumentation may result in their being empirically distinguishable in the future.

It is worth noting how heroic is the notion of "determination" of theory by evidence. If we thought that science should issue in theories that are determined by the empirical evidence, we would be committed to the idea that there is one uniquely best theory of everything. This assumption of ultimate theory uniqueness might be thought to follow from scientific and metaphysical realism: the world has a specific and determinate structure and causal properties; this structure gives rise to all observations; well-supported theories are approximately true descriptions of this hidden structure of the world; and therefore there is a uniquely best scientific theory -- the one that refers to this set of entities, processes, and structures. And if an existing theory is false in description of this unobservable reality, then there must be observational circumstances where the false assumptions of the theory give rise to false predictions about observation.  In other words, well-confirmed theories are likely to be approximately true, and the hidden structure of the world can be expected to create observations that refute out false theories.

However, this foundational approach is implausible in virtually every area of science.  Our theories rarely purport to describe the most fundamental level of reality; instead, they are meso-level descriptions of intermediate levels of phenomena. Take the effort to understand planetary motion.  The description of the orbits of the planets as ellipses generated by the gravitational attraction of the planet and the sun turned out to be only approximately true.  Did this refute the pure theory of gravitation? Certainly not; rather, it raised the possibility of other causal processes not yet identified, that interfere with the workings of gravitational attraction.

So how do these general considerations from the philosophy of science affect the situation of knowledge claims in the social sciences?

It would seem that social science claims are even more subject to underdetermination than the claims of mechanics and physics. In addition to the problem of unidentified interfering causes and the need for auxiliary hypotheses, we have the problems of vagueness and specification.  We commonly find that social science theories offer general statements about social causes and conditions that need to be further specified before they can be applied to a given set of circumstances. And there are almost always alternative and equally plausible ways of specifying the concept in a particular setting.

Take the idea of class conflict as a theory of political behavior.  The theory may assert that "workers act on their material interests." Before we can attempt to evaluate this statement in particular social settings, we have to specify several things: how to characterize "material interests" in the setting and how to represent the cognitive-behavioral models the worker uses as he/she deliberates about action.  Is retaining support from City Hall a material interest? Or are material interests restricted to wages and the workplace? Are workers thought to be rational maximizers of their interests, or do they also embody social commitments that modulate the dictates of maximization? And here is the crucial point: different specifications lead to different predictions about political behavior; so the general theoretical assertion is underdetermined by empirical observation.

This discussion seems to lead us into surprising territory -- not the limited question of underdetermination but the large question of truth and correspondence and the question of the rationality of scientific belief. Do we think that social assertions are true or false in the semantic sense: true by virtue of correspondence to the facts as they really are; or do we think that social assertions are simply ways of speaking about complexes of social phenomena, with no referential force? Is the language of class or ideology or ressentiment just a way of encompassing a range of social behaviors, or are there really classes and ideologies in the social world? And if we affirm the latter possibility, does the evidence of social observation permit us to unambiguously select the true theories?

I suppose one possible approach is to minimize the scope of "truth" when it comes to the social sciences. We might say that there is a limited range of social statements that are unambiguously true or false -- Jones robbed a store, Jones robbed a store because he was economically desperate, people sometimes commit crimes out of economic necessity -- but there is a broader class of statements that have a different status.  These are more akin to interpretive schemes in literary criticism or to a set of metaphors deployed to describe a complex social situation.  The language of class may fall in this category.  And we might say that these statements are not truth claims at all, but rather interpretive schemes that are judged to do a better or worse job of drawing together the complex phenomena to which they are applied.  And in this case, it seems unavoidable that statements like these are radically underdetermined by the empirical facts.

(See Kyle Stanford's essay on underdetermination in the Stanford Encyclopedia of Philosophy.)

Thursday, May 13, 2010

Social theory and the empirical social world


How can general, high-level social theory help us to better understand particular historically situated social realities? Is it helpful or insightful to "bring Weber's theory of religion to bear on Islam in Java" or to "apply Marx's theory of capitalism to the U.S. factory system in the 1950s"? Is there any real knowledge to be gained by applying theory to a set of empirical circumstances?

In the natural sciences this intellectual method is certainly a valid and insightful one. We gain knowledge when we apply the theory of fluid dynamics to the situation of air flowing across a wing, or when we apply the principles of evolutionary theory to the problem of understanding butterfly coloration. But do we have the same possibility in the case of the social world?

My general inclination is to think that "applying" general social theories to specific social circumstances is not a valid way of creating new knowledge or understanding. This is because I believe that social ensembles reflect an enormous degree of plasticity and contingency; so general theories only "fit" them in the most impressionistic and non-explanatory way. We may have a pure structural theory of feudalism; but it is only the beginning of a genuinely knowledge-producing analysis of fourteenth-century French politics and economy or the Japanese samurai polity. At best the theory highlights certain issues as being salient -- the conditions of bonded labor, the nature of military dependency between lord and vassal. But the theory of feudalism does not permit us to "derive" particular features or institutions of French or Japanese society. "Feudalism" is an ideal type, a heuristic beginning for social analysis, rather than a general deductive and comprehensive theory of all feudal societies.  And we certainly shouldn't expect that a general social theory will provide the template for understanding all of the empirical characteristics of a given instance of that theorized object.

Why is there this strong distinction between physical theory and social theory? Fundamentally, because natural phenomena really are governed by laws of nature, and natural systems are often simple enough that we can aggregate the effects of the relevant component processes into a composite description of the whole. (There are, of course, complex physical systems with non-linear composite processes that cannot be deductively represented.)  So theories can be applied to complicated natural systems with real intellectual gain.  The theory helps us to predict and explain the behavior of the natural system.

The social world lacks both properties. Component social mechanisms and processes are only loosely similar to each other in different instances; for example, "fealty" works somewhat differently in France, England, and Japan. And there is a very extensive degree of contingency in the ways that processes, mechanisms, agents, and current circumstances interact to produce social outcomes. So there is a great degree of path dependency and variation in social outcomes, even in cases where there are significant similarities in the starting points. So feudalism, capitalism, financial institutions, religions, ethnic conflicts, and revolutions can only be loosely theorized.

That is my starting point. But some social theorists take a radically different approach. A good example of a bad intellectual practice here is the work of Hindess and Hirst in Pre-Capitalist Modes Of Production, in which they attempt to deduce the characteristics of the concrete historical given from its place within the system of concepts involved in the theory of the mode of production.

Is this a legitimate and knowledge-enhancing effort? I don't think that it is. We really don't gain any real insight into this manor, or the Burgundian manor, or European feudalism, by mechanically subsuming it under a powerful and general theory -- whether Marx's, Weber's or Pareto's.

It should be said here that it isn't the categories or hypotheses themselves that are at fault. In fact, I think Marx's analysis and categories are genuinely helpful as we attempt to arrive at a sociology of the factory, and Durkheim's concept of anomie is helpful when we consider various features of modern communities. It is the effort at derivation and subsumption that I find misguided. The reality is larger and more varied than the theory, with greater contingency and surprise.

It is worthwhile looking closely at gifted social scientists who proceed differently. One of these is Michael Burawoy, a prolific and influential sociologist of the American labor process. His book, Manufacturing Consent: Changes in the Labor Process Under Monopoly Capitalism, is a detailed study of the American factory through the lens of his micro-study of a single small machine shop in the 1940s and 1970s, the Allied/Geer factory. Burawoy proceeds very self-consciously and deliberately within the framework of Marx's theory of the capitalist labor process. He lays out the fundamental assumptions of Marx's theory of the labor process -- wage labor, surplus labor, capitalist power relations within the factory -- and he then uses these categories to analyze, investigate, and explain the Allied/Geer phenomena. But he simultaneously examines the actual institutions, practices, and behaviors of this machine shop in great participant-observer detail. He is led to pose specific questions by the Marxist theory of the labor process that he brings with him -- most importantly, what accounts for the "consent" that he observes in the Allied workers? -- but he doesn't bring a prefabricated answer to the question.  His interest in control of surplus labor and coercion and consent within the workforce is stimulated by his antecedent Marxist theory; but he is fully prepared to find novelty and surprise as he investigates these issues.  His sociological imagination is not a blank slate -- he brings a schematic understanding of some of the main parameters that he expects to arise in the context of the capitalist labor process.  But his research assumptions are open to new discovery and surprising inconsistencies between antecedent theory and observed behavior.

And in fact, the parts of Burawoy's book that I find most convincing are the many places where he allows his sociological imagination and his eye for empirical detail to break through the mechanism of the theory. His case study is an interesting and insightful one. And it is strengthened by the fact that Burawoy does not attempt to simply subsume or recast the findings within the theoretical structure of Marx's economics.

(Burawoy addresses some of these issues directly in an important article, "Two Methods in Search of Science" (link). He advocates for treating Marxist ideas as a research program for the social sciences in the sense articulated by Imre Lakatos. )

So my advice goes along these lines: allow Marxism, or Weber or Durkheim or Tilly, to function as a suggestive program of research for empirical investigation. Let it be a source of hypotheses, hunches, and avenues of inquiry. But be prepared as well for the discovery of surprising outcomes, and don't look at the theory as a prescription for the unfolding of the social reality. Most importantly, don't look to theory as a deductive basis for explaining and predicting social phenomena. (Here is an article on the role of Marxism as a method of research rather than a comprehensive theory; link.)

Sunday, May 9, 2010

System safety engineering and the Deepwater Horizon


The Deepwater Horizon oil rig explosion, fire, and uncontrolled release of oil into the Gulf is a disaster of unprecedented magnitude.  This disaster in the Gulf of Mexico appears to be more serious in objective terms than the Challenger space shuttle disaster in 1986 -- in terms both of immediate loss of life and in terms of overall harm created. And sadly, it appears likely that the accident will reveal equally severe failures of management of enormously hazardous processes, defects in the associated safety engineering analysis, and inadequacies of the regulatory environment within which the activity took place.  The Challenger disaster fundamentally changed the ways that we thought about safety in the aerospace field.  It is likely that this disaster too will force radical new thinking and new procedures concerning how to deal with the inherently dangerous processes associated with deep-ocean drilling.

Nancy Leveson is an important expert in the area of systems safety engineering, and her book, Safeware: System Safety and Computers, is a genuinely important contribution.  Leveson led the investigation of the role that software design might have played in the Challenger disaster (link).  Here is a short, readable white paper of hers on system safety engineering (link) that is highly relevant to the discussions that will need to occur about deep-ocean drilling.  The paper does a great job of laying out how safety has been analyzed in several high-hazard industries, and presents a set of basic principles for systems safety design.  She discusses aviation, the nuclear industry, military aerospace, and the chemical industry; and she points out some important differences across industries when it comes to safety engineering.  Here is an instructive description of the safety situation in military aerospace in the 1950s and 1960s:
Within 18 months after the fleet of 71 Atlas F missiles became operational, four blew up in their silos during operational testing. The missiles also had an extremely low launch success rate.  An Air Force manual describes several of these accidents: 
     An ICBM silo was destroyed because the counterweights, used to balance the silo elevator on the way up and down in the silo, were designed with consideration only to raising a fueled missile to the surface for firing. There was no consideration that, when you were not firing in anger, you had to bring the fueled missile back down to defuel. 
     The first operation with a fueled missile was nearly successful. The drive mechanism held it for all but the last five feet when gravity took over and the missile dropped back. Very suddenly, the 40-foot diameter silo was altered to about 100-foot diameter. 
     During operational tests on another silo, the decision was made to continue a test against the safety engineer’s advice when all indications were that, because of high oxygen concentrations in the silo, a catastrophe was imminent. The resulting fire destroyed a missile and caused extensive silo damage. In another accident, five people were killed when a single-point failure in a hydraulic system caused a 120-ton door to fall. 
     Launch failures were caused by reversed gyros, reversed electrical plugs, bypass of procedural steps, and by management decisions to continue, in spite of contrary indications, because of schedule pressures. (from the Air Force System Safety Handbook for Acquisition Managers, Air Force Space Division, January 1984)
Leveson's illustrations from the history of these industries are fascinating.  But even more valuable are the principles of safety engineering that she recapitulates.  These principles seem to have many implications for deep-ocean drilling and associated technologies and systems.  Here is her definition of systems safety:
System safety uses systems theory and systems engineering approaches to prevent foreseeable accidents and to minimize the result of unforeseen ones.  Losses in general, not just human death or injury, are considered. Such losses may include destruction of property, loss of mission, and environmental harm. The primary concern of system safety is the management of hazards: their identification, evaluation, elimination, and control through analysis, design and management procedures.
Here are several fundamental principles of designing safe systems that she discusses:
  • System safety emphasizes building in safety, not adding it on to a completed design.
  • System safety deals with systems as a whole rather than with subsystems or components.
  • System safety takes a larger view of hazards than just failures.
  • System safety emphasizes analysis rather than past experience and standards.
  • System safety emphasizes qualitative rather than quantitative approaches.
  • Recognition of tradeoffs and conflicts.
  • System safety is more than just system engineering.
And here is an important summary observation about the complexity of safe systems:
Safety is an emergent property that arises at the system level when components are operating together. The events leading to an accident may be a complex combination of equipment failure, faulty maintenance, instrumentation and control problems, human actions, and design errors. Reliability analysis considers only the possibility of accidents related to failures; it does not investigate potential damage that could result from successful operation of the individual components.

How do these principles apply to the engineering problem of deep-ocean drilling?  Perhaps the most important implications are these: a safe system needs to be based on careful and comprehensive analysis of the hazards that are inherently involved in the process; it needs to be designed with an eye to handling those hazards safely; and it can't be done in a piecemeal, "fly-test-fly" fashion.

It would appear that deep-ocean drilling is characterized by too little analysis and too much confidence in the ability of engineers to "correct" inadvertent outcomes ("fly-fix-fly").  The accident that occurred in the Gulf last month can be analyzed into several parts. First is the explosion and fire that destroyed the drilling rig and led to the tragic loss of life of 11 rig workers. And the second is the uncalculated harms caused by the uncontrolled venting of perhaps a hundred thousand barrels of crude oil to date into the Gulf of Mexico, now threatening the coasts and ecologies of several states.  Shockingly, there is now no high-reliability method for capping the well at a depth of over 5,000 feet; so the harm can continue to worsen for a very extended period of time.

The safety systems on the platform itself will need to be examined in detail. But the bottom line will probably look something like this: the platform is a complex system vulnerable to explosion and fire, and there was always a calculable (though presumably small) probability of catastrophic fire and loss of the ship. This is pretty analogous to the problem of safety in aircraft and other complex electro-mechanical systems. The loss of life in the incident is terrible but confined.  Planes crash and ships sink.

What elevates this accident to a globally important catastrophe is what happened next: destruction of the pipeline leading from the wellhead 5,000 feet below sea level to containers on the surface; and the failure of the shutoff valve system on the ocean floor. These two failures have resulted in unconstrained release of a massive and uncontrollable flow of crude oil into the Gulf and the likelihood of environmental harms that are likely to be greater than the Exxon Valdez.

Oil wells fail on the surface, and they are difficult to control. But there is a well-developed technology that teams of oil fire specialists like Red Adair employ to cap the flow and end the damage. We don't have anything like this for wells drilled under water at the depth of this incident; this accident is less accessible than objects in space for corrective intervention. So surface well failures conform to a sort of epsilon-delta relationship: an epsilon accident leads to a limited delta harm. This deep-ocean well failure in the Gulf is catastrophically different: the relatively small incident on the surface is resulting in an unbounded and spiraling harm.

So was this a foreseeable hazard? Of course it was. There was always a finite probability of total loss of the platform, leading to destruction of the pipeline. There was also a finite probability of failure of the massive sea-floor emergency shutoff valve. And, critically, it was certainly known that there is no high-reliability fix in the event of failure of the shutoff valve. The effort to use the dome currently being tried by BP is untested and unproven at this great depth. The alternative of drilling a second well to relieve pressure may work; but it will take weeks or months. So essentially, when we reach the end of this failure pathway, we arrive at this conclusion: catastrophic, unbounded failure. If you reach this point in the fault tree, there is almost nothing to be done. And this is a totally irrational outcome to tolerate; how could any engineer or regulatory agency have accepted the circumstances of this activity, given that one possible failure pathway would lead predictably to unbounded harms?

There is one line of thought that might have led to the conclusion that deep ocean drilling is acceptably safe: engineers and policy makers might have optimistically overestimated the reliability of the critical components. If we estimate that the probability of failure of the platform is 1/1000, failure of the pipeline is 1/100, and failure of the emergency shutoff valve is 1/10,000 -- then one might say that the probability of the nightmare scenario is vanishingly small: one in a billion. Perhaps one might reason that we can disregard scenarios with this level of likelihood. Reasoning very much like this was involved in the original safety designs of the shuttle (Safeware: System Safety and Computers). But several things are now clear: this disaster was not virtually impossible. In fact, it actually occurred. And second, it seems likely enough that the estimates of component failure are badly understated.

What does this imply about deep ocean drilling? It seems inescapable that the current state of technology does not permit us to take the risk of this kind of total systems failure. Until there is a reliable and reasonably quick technology for capping a deep-ocean well, the small probability of this kind of failure makes the use of the technology entirely unjustifiable. It makes no sense at all to play Russian roulette when the cost of failure is massive and unconstrained ecological damage.

There is another aspect of this disaster that needs to be called out, and that is the issue of regulation. Just as the nuclear industry requires close, rigorous regulation and inspection, so deep-ocean drilling must be rigorously regulated. The stakes are too high to allow the oil industry to regulate itself. And unfortunately there are clear indications of weak regulation in this industry (link).

(Here are links to a couple of earlier posts on safety and technology failure (link, link).)

Urban inequalities and social mobility


Most American cities commonly look a lot like the poverty map of Cleveland above, when it comes to the spatial distribution of poverty and affluence.  There is a high-poverty core, in which residents have low income, poor health, poor education, and poor quality of life; there are rings of moderate income; and there are outer suburbs of affluent people with high quality of life.

We can ask two different kinds of sociological questions about these facts: What factors cause the reproduction of disadvantage over multiple generations? And what policy interventions have some effect on enhancing upward social mobility within disadvantaged groups? How can we change this cycle of disadvantage?

The persistence of inequalities in urban America was addressed in a special 2008 issue of the Boston Review in a forum on "ending urban poverty."  Particularly interesting is Patrick Sharkey's article "The Inherited Ghetto." Sharkey begins with a crucial and familiar point: that racial inequality has changed only very slightly since the passage of the Fair Housing Act in 1968. The concentration of black poverty in central cities has not substantially improved over that period of time, and the inequalities of health, education, and employment associated with this segregation have continued. And the association between neighborhood, degree of segregation, and income and quality of life is very strong: children born into a poor and segregated neighborhood are likely to live as adults -- in a poor and segregated neighborhood.

Sharkey documents these statements on the basis of his analysis of the data provided the University of Michigan Panel Study of Income Dynamics, the first major statistical study of several generations of families in terms of residence, income, occupation, health, and other important variables. Using a computer simulation based on the two-generation data provided by the Panel Study, Sharkey indicates that it would take five generations for the descendants of a family from a poor, black neighborhood to have a normal expectation of living in a typical American neighborhood. (That's one hundred years in round numbers.)  In other words: the progress towards racial equality in urban America is so slow as to be virtually undetectable.

Particular frustrating is the persistence of segregation in the forty years since the passage of the Fair Housing Act. Sharkey argues that this fact is partially explained by the fact that the policy choices made by federal and local authorities concerning housing patterns have more or less deliberately favored segregation by race. Beginning with the initial Fair Housing legislation -- which was enacted without giving the Federal agencies the power of enforcement -- both federal and state policies have reinforced segregation in housing. Sharkey notes that federal housing programs have subsidized the growth of largely white suburbs, while redlining and other credit-related restrictions have impeded the ability of black families to follow into these new suburban communities. The continuation of informal discrimination in the housing market (as evidenced by "testers" from fair housing agencies) further reinforces continuing segregation between inner-city black population and the suburban, mostly white population.

So racial segregation is one important mechanism that maintains the economic and social inequalities that  our society continues to embody.

How about policies that would work to speed up social progress?  It is commonly agreed that improving access to higher education for disadvantaged people is the best way to speed their economic advancement.  The theory is that individuals within the group will benefit from higher education by enhancing their skills and knowledge; this will give them new economic opportunities and access to higher-wage jobs; the individuals will do better economically, and their children will begin life with more economic support and a set of values that encourage education. So access to higher education ought to prove to be a virtuous circle or a positive feedback loop, leading to substantial social mobility in currently disadvantaged groups.

This theory appears to be substantially true: when it is possible to prepare poor children for admission to college, their performance in college and subsequent careers is good and lays a foundation for a substantial change in quality of life for themselves and their families (link).

However, most of our cities are failing abysmally in the task of preparing poor children for college.  High school graduation rates are extremely low in many inner-city schools -- 25-50%, and performance on verbal and math assessment tests are very low.  So a very substantial number of inner-city, high-poverty children are not being given the opportunity to develop their inherent abilities in order to move ahead in our society.  This is true in Detroit (link), and much the same is true in Cleveland, Oakland, Miami, Houston, New Orleans, and dozens of other cities.  (Here is a survey of the issues by Charles Payne in So Much Reform, So Little Change: The Persistence of Failure in Urban Schools.  And here is a striking report from 1970 prepared by the HEW Urban Education Taskforce.)  High poverty and poor education go hand in hand in American cities.

One important research question is whether there are behavioral or structural factors that predict or cause low performance by groups of students.  Here is a fascinating graph of high school graduation rates broken down by freshman-year absenteeism (MDRC report).  Important research is being done at the Center for the Social Organization of Schools at Johns Hopkins on the dropout crisis in urban schools (link).  (Here is an earlier post on CSOS and its recommendations for improving dropout rates from urban high schools.)  The topic is important because research findings like these may offer indications of the sorts of school reforms that are most likely to enhance school success and graduation.


It is clear that finding ways of dramatically increasing the effectiveness of high-poverty schools is crucial if we are to break out of the multi-generational trap that Sharkey documents for inner-city America.  Here is a specific and promising strategy that is being pursued in Detroit by the Skillman Foundation and its partners (link), based on small schools, greater contact with caring adults, and challenging academic curricula.  This turn-around plan is based on a specific set of strategies for improving inner-city schools developed by the Institute for Student Achievement, and ISA provides assessment data that support the effectiveness of the plan in other cities.  With support from the United Way of Southeast Michigan, several large high schools are being restructured along the design principles of the ISA model.

But the reality is that this problem is immense, and a few successful experiments in school reform are unlikely to move the dial.  Somehow it seems unavoidable that only a Marshall Plan for addressing urban poverty would allow us to have any real confidence in the possibility of reversing the inequalities our cities reveal.  And none of our political leaders -- and few of our taxpayers -- seem to perceive the urgency of the problem.

Wednesday, May 5, 2010

Mental models for the social world

What is involved in being prepared to understand what is going on around you?

In a sense this is Kant's fundamental question in the Critique of Pure Reason: what intellectual resources (concepts, categories, frameworks) does a cognitive agent need in order to make sense of the contents of consciousness, the fleeting experiences and sensations that life brings us? And his answer is pretty well known: we need concepts of fixed objects in space and time, subject to causal laws.  The stream of experiences we have is organized around a set of persistent objects located in time and space with specific causal properties. Space, time, cause, and object are the fundamental categories of cognition when it comes to understanding the natural world. This line of thought leads to an esoteric philosophical idea, the notion of transcendental metaphysics. (P. F. Strawson's work on Kant is particularly helpful; The Bounds of Sense: An Essay on Kant's Critique of Pure Reason.)

But we can ask essentially the same kind of question about the ordinary person's ability to make sense of the social world around him or her. Each person is exposed to a dense stream of experiences of the social world, at various levels. We have ordinary interactions -- with friends, bus drivers, postal carriers, students -- and we want to interpret the behavior that we observe. We read news reports and tweets about happenings in the wider world -- riots in Athens, suicide attacks in Pakistan, business statements about future sales, ... -- and we want to know what these moments mean, how they hang together, and what might have caused them.  In short, we need to have a set of mental resources that permit us to organize these experiences into a representation of a coherent social reality.

So is it possible to provide a transcendental metaphysics for ordinary social experience? Can we begin to list the kinds of concepts we need to have in order to cognize the social world?

We might say that a very basic building block of social cognition is a set of scripts or schemas into which we are prepared to fit our observations and experiences. Suppose we observe two people approach each other on the street, exchange words, bow heads slightly, and part. This interaction between two strangers might be categorized as "courtesy" during a chance meeting. But it might be construed in other ways as well: ironic insults, sexual innuendo, or condescension from superior to inferior. Each of these is an alternative interpretive frame, a way of conceptualizing and "seeing" a complex series of behaviors.  So the scripts or frames that we bring to the observations impose a form of organization on the observations.

Or take the current rioting in Greece: we might construct these masses of collective behavior as rationally directed economic protest, righteous resistance, or opportunistic anarchism. Each alternative has different implications, and each corresponds to a somewhat different set of background assumptions about how social interactions unfold. Each corresponds to a different social metaphysic.  Different observers bring a different set of assumptions about how the social world works to their observations. And these frameworks lead to different constructions of the events.

Or consider the question of the social "things" around which we organize our social perceptions: nations, financial markets, cities, parties, and ideologies, for example. How much arbitrariness is there in the ontological schemes into which we organize the world? Could we have done just as well at making sense of our experience with a substantially different ontology? Is there a most basic ontology that underlies each of these and is a scheme that cannot be dispensed with?

We might try a "fundamental" ontology along these lines: we must identify individuals as purposive, intentional agents; we must recognize relations among individuals -- giving us social networks, knowledge transmission, and groups; and we must recognize social processes with causal powers, constituted by individuals within specific social relations. And we must recognize the situation of consciousness -- beliefs, desires, values, and ideologies. And, we might hypothesize, we can build up all other more specific social entities out of aggregations of these simple things.

This is one possible way of formalizing a social ontology.  But there are others.  For example, we might give priority to relations rather than individuals; or we might give priority to processes rather than structures.  So it is hard to justify the notion that there is a single uniquely best way of conceptualizing the realm of the social.

An interesting collateral question has to do with the possibility of systemic error: is it possible that our metaphysical presuppositions about the social world sometimes lead us to construe our social observations in ways that systematically misrepresent reality? For example, would a "metaphysics of suspicion" (the idea that people generally conceal their true motives) lead us to a worldview along the lines of Jerry Fletcher, the central character in Conspiracy Theory?

Several things seem likely. First, there is no single and unique set of ontological "simples" for the social world. Rather, there are likely to be multiple starting points, all of which can result in a satisfactory account of the social world. So there is no transcendental metaphysics for the social world -- including the candidate sketched above.

Second, it seems that the unavoidable necessity of having a set of causal, semantic, and process schemata does not guarantee correctness. Our schemata may systematically mislead us.  So the schemata themselves amount to a large empirical hypothesis; they may be superseded by other schemata that serve better to organize our experiences.  The schemata are not determined by either apriori or empirical considerations.  And therefore our social cognitions are always a work in progress, and our conceptual frameworks are more like a paradigm than an ineluctable conceptual foundation.

Monday, May 3, 2010

Outcast London


A city is a complex social agglomeration, and all too often it represents a concentration of social ills that are very difficult to eradicate.  Poverty, violence, and poor public health are three social problems that seem to be almost synonymous with "urban."  We might ask two rather different sorts of questions about these facts.  One is "Why so?", and the other is, "Under what circumstances not?"

The "why" question has a number of fairly obvious answers -- not all consistent with each other.  A city is often a magnet for extremely poor people looking for better opportunities than those afforded in their current locations.  A city is often segregated and stratified, with high barriers to exit; so poor people are concentrated in their cores.  Extreme poverty reproduces extreme poverty, as businesses and other social activities exit the core.

The question, "what circumstances help a city to avoid these outcomes?" also has some obvious answers.  Robust business growth promotes jobs at a range of skill levels, so unemployed unskilled people (usually poor) are able to find work and to climb the ladder of economic advancement.  The presence of a well funded and robust social welfare net helps the poor population. A high degree of civic pluralism in the population facilitates easy movement across the neighborhoods and jobs of the city.   And there are virtuous circles at work among these factors: more job growth enables more pluralism, and helps to fund more social welfare spending; which in turn stimulates more job growth.

As we contemplate these social processes in the contemporary U.S. city, it is instructive to think about an important historical example as well.  In this context it is interesting to reread Gareth Stedman Jones' Outcast London: Study in the Relationship Between Classes in Victorian Society, a brilliant piece of social and urban history first published in 1971.

Stedman Jones frames his narrative around the shocking puzzle that London presented to the English nation in the first half of the nineteenth century.   London was the cultural, financial, and political center of England, a world city with a privileged and affluent population.  But at the same time it was the home to a large population of extremely poor people who fell under the general label of "casual labor."  And, as Stedman Jones points out repeatedly, educated London had almost no conceptual framework within which to categorize the social reality of the slum.

In fact, there was a growing perception of "two Englands" and two races of English people -- the poor and the rest.  As Stedman Jones makes clear, the political economists of the mid-nineteenth century devoted a good deal of their time to the effort to decipher this paradox of wealth and poverty.  Malthus placed much of the responsibility for the slums of London on over-population; slum dwellers represented the cutting edge of "positive checks" on population growth.  Alfred Marshall, on the other hand, took a more benign view of the possible future of the working class; he argued for a gradual process of improvement that lifted the quality of life for many poor people.
Economic institutions are the product of human nature, and cannot change much faster than human nature changes.  Education, and the raising of our moral and religious ideals, and the growth of the printing press and the telegraph have so changed English human nature that many things which economists rightly considered impossible thirty years ago are possible now. (S-J, 9, quoting Marshall in "How far do Remediable causes influence prejudicially (a) continuity of employment, (b) the rates of wages?")
But there was a lower end of the lower class in Marshall's worldview: the "residuum" of people who would never benefit from the rising tide.
Marshall expressed the prevailing opinion when he characterized the 'residuum' as those who are limp in body and mind'.  The problem was not structural but moral.  The evil to be combated was not poverty but pauperism: pauperism with its attendant vices, drunkenness, improvidence, mendicancy, bad language, filthy habits, gambling, low amusements, and ignorance (11).
So Marshall's diagnosis of extreme poverty came down to something akin to a biological moral theory: there is a segment of humanity who cannot benefit from the progress of civilization and the economy.  And London was ground zero for this segment:
London was regarded as the Mecca of the dissolute, the lazy, the mendicant, 'the rough' and the spendthrift.  The presence of great wealth and countless charities, the unparalleled opportunities for casual employment, the possibility of scraping together a living by innumerable devious methods, all were thought to conspire together to make London one huge magnet for the idle, the dishonest, and the criminal. (12)
Dock labor was the largest source of casual-labor employment in these decades, and it was notoriously prone to fluctuation.  And the collapse of traditional industries left even more people unemployed.  S-J quotes George Godwin in an ethnographic mode:
At the corners of the streets may be seen groups of youths of the age from 16 to 20 (evidently not of the vicious class), lean, wan and ragged. On speaking to these lads, they will tell you that they are sons of silk weavers: they have no employment: some have tried to get into a man of war, but being over 15 years of age have been refused: they have tried to enlist into the army, but their chest or height would not pass inspection. (102)
In order to treat these conditions rigorously Stedman Jones provides a careful analysis of the dynamics of the casual labor market in London in the mid-nineteenth century and its high degree of seasonality, and demonstrates that economic insecurity and immiseration were the foundation of slum culture.  He quotes Henry Mayhew from London Labour and the London Poor:
Where the means of subsisence occasionally rise to 15s. per week, and occasionally sink to nothing, it's absurd to look for prudence, economy, or moderation.  Regularity of habits are incompatible with irregularity of income... it is a moral impossibility that the class of labourers who are only occasionally employed should be either generally industrious or temperate. (263)
An interesting feature of Outcast London is the dual perspective that Stedman Jones takes: he offers a narrative of economic change and social class; but he also dissects the intellectual frameworks through which economists and policy makers sought to understand these processes.  So the book does a good job of both describing the economic circumstances as well as the shifting theories through which British intellectuals and the public tried to make sense of these circumstances.

Here is the interesting and relevant conclusion of Stedman Jones's argument: in the end, it was not dissoluteness or poor morals that condemned the extreme poor to their stations, but simply the lack of economic opportunity presented by the urban environment of London in the 1850s.  It was the lack of jobs, not the lack of morals, that constructed the great slums of London.

Wednesday, April 28, 2010

Revitalizing our cities



It is hard to think of an American city that is doing really well these days.  Dense urban poverty in the core, super-high rates of unemployment, failing schools for many urban children, high rates of crime, chronic and overwhelming fiscal crises resulting from too little public revenue for needed public services, and health outcome discrepancies that mark debilitating life disadvantages for urban people -- these seem to be fairly widespread features of cities from Miami to Cleveland to Los Angeles to Chicago to Detroit.

The most recent victim of the urban crisis in the area of publicly provided social services in my city, Detroit, is indicative; this week it was announced that Detroit's Neighborhood Services Organization would lose 2/3 of its funding effective immediately (link).  This program reaches out to Detroit's homeless people and provides transition assistance permitting 1000 people per year to return to housed status.  It is now forced to close down its operations entirely until October 1, since the program has already expended 1/3 of its budget for 2009-10.  No one disputes that NSO is doing great work and returning multiples of benefits relative to its budget; but the state's fiscal crisis has been passed on to this effective, people-oriented program.  (CEO Sheilah Clay was featured as a guest on the Craig Fahle show on WDET today -- one of the best parts of the urban Detroit dial.  Thanks, Craig!)

So cities are suffering from very significant structural disadvantages in the United States today.  And yet, as Richard Florida argues so persistently and so correctly, cities are crucial to the future of the United States and the rest of the world (link).  When they are healthy, they create a concentration of talent, innovation, and synergy that simply cannot be beaten.  So we need healthy cities and metropolitan regions if we are to thrive in the twenty-first century.

So what can be done, given that the deck seems to be stacked against our cities?  This evening Judith Rodin, president of the Rockefeller Foundation and former president of the University of Pennsylvania, gave an important lecture on this subject at Wayne State University in its Van Dusen Forum on Urban Issues.  Rodin is an ideal speaker on this subject, because the University of Pennsylvania developed very strong urban renewal strategies aimed at West Philadelphia during her tenure, and because the Rockefeller Foundation has taken urban revitalization as one of its core goals for quite a few decades. Rodin is the author of an important book about the process that unfolded in Philadelphia around the University of Pennsylvania (The University and Urban Revival: Out of the Ivory Tower and Into the Streets), and it is worth reading.  She estimates that there are roughly 50 "megaregions" in the United States -- Detroit Metro, Chicago-Land, ... -- and that these megaregions represent 65% of the population and a higher percentage of all economic activity.  So healthy development of American cities is enormously important. But likewise, the institutions that find themselves deeply integrated into the geography of these cities urgently need a future in which their cities begin to grow more habitable, healthy, and equitable.  Here is a memorable line from the speech -- "Blight of the city becomes the plight of the university."

What actors and strategies can help attain a positive trajectory of urban revitalization?  Rodin's central thrust is that universities and health systems can serve as "anchor" institutions in cities, and that they can design strategies that substantially improve the economic development and quality of life of the cities they inhabit.  (She calls these institutions "eds and meds".)  They provide very significant employment opportunities and purchasing power in the city; and more important, they necessarily make significant investments in real estate and infrastructure in the city.  So in principle, it is credible that the resources of these institutions could be used in ways that leverage positive change in the cities in which they live.

But Rodin draws several very important lessons from the example of Penn and Philadelphia.  There needs to be a broad and sustained institutional commitment to making strategic decisions around the goal of enhancing the process of urban development.  The strategies can't be "one-off" -- they need to be sustained and thoughtful.  Strategies need to be coherent and comprehensive -- not piecemeal and stop-and-go.  Third, she emphasizes that successful revitalization strategies require us to think innovatively.  Existing solutions haven't worked; we need to bring fresh thinking to the situations we confront and the outcomes we want to achieve.  And, finally, she emphasizes over and over the need for partnership and community participation in the plans that the institution arrives at.  Full, uninhibited partnership is essential if any of these strategies are to work.  So communication, partnership, and genuine collaboration with all stakeholders is essential to a successful strategy. Another memorable line -- "Urban revitalization can't be done for the community or to the community; it must be done with the community."

The examples that Rodin offered from Philadelphia largely had to do with neighborhood revitalization and investments by the university in stabilizing the neighborhoods surrounding it in West Philadelphia.  For example, the university bought dozens of homes and buildings in the neighborhoods, renovated them, and leased them back to residents and businesses; and, significantly, it did so at a loss.  The idea was to make attractive properties available to city residents and businesses, bringing housing, children, and consumers into once-blighted neighborhoods.  Another example -- she highlighted crime and safety on the streets as a key issue; so the university organized a program for street lighting in a number of neighborhoods.  The new lighting system invited people back into the streets; but more people in the streets in turn reduced the prevalence of crime.  A third example -- she talked about a mortgage incentive program the university offered to faculty and staff, to give them an incentive to live in the targeted neighborhoods.  In other words, through a targeted and sustained investment strategy in real estate and neighborhoods the university was able to help Philadelphia achieve meaningful change.

The upshot of these examples comes down to two basic causal ideas: invest in real estate in ways that invite people to live and work in the central city; and find ways of changing behaviors so that the neighborhoods will be increasingly attractive.  Crucially, Rodin suggests that the university's investment is a sizable one; but it is a small fraction of the total investment in these neighborhoods that eventually comes about as residents, business owners, and investors acquire more confidence in the safety and stability of the neighborhoods.  So the change of behavior is really essential to the whole plan; unless people begin occupying homes, purchasing in grocery stores and other businesses, and enjoying parks and cinemas in these neighborhoods, nothing fundamental will change.  No single institution has the resources to turn West Philadelphia into Back Bay, but early investments by "anchor institutions" may pay off through their ability to leverage many times those resources through other sources.

What Rodin didn't talk about so much in her lecture is how the research energies of the university can be a positive factor in urban revitalization.  But this aspect of the university's ability to contribute is crucial.  The social problems that modern cities face are "wicked" problems -- big, messy, complex, and multi-sectoral problems (link).  Everyone wants to improve the quality of urban schools.  But what interventions might actually work?  This requires a broad research effort, incorporating teacher training, pedagogy, curriculum, the cultural and social environments that poor children live in, school leadership, system bureaucracy and governance, and a host of other complex causal processes.  So 800-word editorials in the local newspaper won't be able to provide a guide to policy reform.  The remedies won't be simple.  Or take racial disparities in health outcomes.  Why are certain diseases so much more prevalent in poor neighborhoods?  Some of the answers are fairly simple; but overall, this is a complex phenomenon that requires careful, detailed applied research.  And schools of public health have exactly the right constellations of talent and expertise to help sort out the causal processes leading to these outcomes -- and the kinds of policy interventions that can reverse them.  Here again, the research capacity of a university is crucial to the solution or amelioration of the problems our cities face.

Another major impact that a university can offer a city is in the form of an engaged student body.  If students are motivated to support community service organizations, they can have an immediate impact.  If they are encouraged to take service-learning courses that give them a better understanding of the city, this will deepen their ability to contribute.  And both these forms of engagement will produce something even more important: adults who are prepared to extend themselves in forms of community service throughout their lives.  Learning the habit of engagement can be a lifelong change.

Significantly, a number of urban and metropolitan universities are adopting institutional missions that highlight the kinds of partnership, engagement, and urban/metropolitan impact that is described here.  In particular, the Coalition of Urban and Metropolitan Universities represents a group of universities with precisely those commitments.  Here is the Declaration that members of the coalition endorse.  Another important recent development is the establishment of a new Carnegie classification of universities, the classification for Community Engagement (link).

Sunday, April 25, 2010

Sociology in time: cohorts


What difference does it make to a person's personality, values, agency, or interpretive schemes that she was born in 1950 rather than 1930 or 1970?  How does a person's place in time and in a stream of historical events influence the formation of his or her consciousness?  (I've raised some of these questions in prior posts, here and here.)

If we thought of people as being pretty much uniform in their motivations and understandings of the world, then we wouldn't be particularly interested in the micro-circumstances that defined the developmental environment of a cohort; these circumstances would have been expected to lead to pretty much the same kinds of actors.  We don't think it is useful to analyze ants or cattle into age cohorts.

If, on the other hand, we think that a person's political and social identity, the ways in which she values a range of social and personal outcomes, the ways in which she organizes her thinking about the world -- if we think that these basic features of cognition, valuation, and motivation are significantly influenced by the environment in which development and maturation take place, then we are forced to consider the importance of cohorts.

The ideas of the "Great Generation" the "Children of the Depression," or the "Sixties Generation" have a certain amount of resonance for us. We think of the typical members of these cohorts as having fairly important features of personality, memory, and motivation that are different from members of other cohorts.  Americans born in the 1920s were thrown into social environments that were very different from those of people born twenty years earlier or later.  And their political consciousness and behavior seem to reflect these differences.

But here is the difficult question raised by these considerations: how should sociologists attempt to incorporate the possibility of cohort differences in behavior and outlook?  Here is one possible way of conceptualizing cohort differences with respect to a personality characteristic -- let's say "propensity to trust leaders."  Suppose we have conducted a survey that operationalizes this characteristic so that the trust propensity of each individual can be measured.  We might postulate that every individual has some degree of trust, but that different cohort groups have different mean values and different distributions around the mean.

The graph below represents four hypothetical cohorts: purple, blue, green, red.  Blue, green, and red cohorts have the same mean value for trust (normalized to 0).  But they differ in terms of the degree of variation there is within the cohort with respect to this feature.  The red cohort is tightly scattered around the mean, whereas the blue cohort is very widely distributed.  The "average" red individual has the same degree of trust as the average blue individual; but there is a much wider range of the blues than the reds.  Members of the purple cohort show a fundamentally different behavior.  They have a significantly lower level of trust, with a mean of -2.  And the degree of distribution around the mean is moderate for the purple cohort -- not as tight as the reds, not as broad as the blues.  Finally, it should be noted that there are reds, greens, and blues who are as untrusting as some purples, and there are some purples who are more trusting than some reds, greens, and blues.  In other words, the distributions overlap.


If we were confronted with data like these, our next question would be causal and historical: what were the circumstances of development in which the generation of people in the purple cohort took shape that caused them to be less trusting than other cohorts?  And what circumstances led the blue cohort to have such a wide distribution of variation in comparison to the green and red cohorts?

Now let's put some dates on the curves.  Suppose that the purple cohort is the baby-boom generation -- people born between 1945 and 1954.  Red is the "Greatest Generation", born between 1915 and 1924.  And blue is the "me-generation", born between 1955 and 1964.  We might speculate that growing up in the sixties, with a highly divisive war in Vietnam underway, a government that suffered a serious credibility gap, and a youth culture that preached the slogan, "trust no one over 30!", would have led to a political psychology that was less inclined to trust government than generations born earlier or later.  So the Purple cohort has a low level of trust as a group.  The social necessity of sticking together as a country, fighting a major world war, and working our way out of the Great Depression, might explain the high degree of unanimity of trust found in the Red cohort.  And the Blue generation is all over the map, ranging from a significant number of people with extremely low trust to an equal group of extremely high trust.  We might imagine that the circumstances of maturation and development following the wild and crazy sixties imposed little structure on this feature of political identity, resulting in a very wide distribution of levels of trust.

It is also important to consider some of the factors that vary across time that might have important influences on the development of different cohorts.  Circumstances like war, famine, or economic crisis represent one family of influences that are often markedly different across age cohorts.  Ideologies and value systems also change from decade to decade.  The turn to a more conservative kind of Christianity in the United States in the 1990s certainly influenced a significant number of young people coming of age during those decades, and the value system of nationalism and patriotism of the 1940s and 1950s influenced the young people of those decades.  Third, institutions change significantly over time as well. Schools change, the operations and culture of the military change, and the internal workings of religious institutions change.  So the institutions in which children and young adults gain their perspectives, motives, and allegiances are often significantly different from one decade to another.  And presumably, all these factors are involved in the formation of the consciousness and identity of the young people who experience them.  Difference in settings (events, ideologies, institutions) lead to differences in psychology across cohorts.

Andrew Abbott raised some of these questions in his presidential address to the Social Science History Association in 2004 (link).  The title he chose is illuminating -- "The Historicality of Individuals".  And the central point here could be put in the same terms: it is important for us to attempt to understand processes of social and historical change, through the shifting characteristics of the age-specific populations that make these processes up. The historicality of individuals adds up to the sociological importance of cohorts.