Showing posts with label objectivity. Show all posts
Showing posts with label objectivity. Show all posts

Saturday, April 14, 2012

Race, perception, and reality

Several recent themes come together in Ron Jacobs' very interesting 2000 book, Race, Media, and the Crisis of Civil Society: From Watts to Rodney King (Cambridge Cultural Social Studies). There is the recurring theme of racial separation in American society, this time with respect to divergent perceptions of important historical events. There is the role of representation and framing as a component of identity and agency. And there is the question of realism: given the fact of divergence, what sense can we make of the question, what really happened?

Jacobs is a cultural sociologist, within a group of theorists who believe that social imagination, representation, and framing are interesting and appropriate objects of sociological inquiry. Like theorists in the broad field of social mobilization, he believes that an understanding of these "subjective" features are key to understanding mobilization and action. But he also takes very seriously the idea that an individual's (or group's) mental framework is constructed by concrete social processes, including the media. And, finally, he offers a sophisticated framework in terms of which to analyze and dissect the media itself. This is an approach that blends the methods of the social sciences and the humanities in a very constructive way.

His specific goal in this book is to try to identify crucial differences of framework between African-American and white publics in the United States at several important junctures. He studies the African-American and mainstream press in their reporting of the Watts uprising (1965) and the disturbances that followed the Rodney King beating and court findings. The African-American press serves an important "fragmented public", and Jacobs wants to identify in detail the differences in perspective that exist between it and the mainstream press.

The theoretical frame for Jacobs is Habermas's thinking about communication, discourse, and the public sphere. He largely buys into Habermas's notion that a populace constitutes itself as a collective identity through discourse in public spaces. And the media represent some of those spaces. But he diverges from Habermas's views in emphasizing that there are multiple publics and multiple discourses. And this point is particularly important when it comes to race in the United States. The OJ Simpson trial illustrated this point very sharply, with widely divergent opinions about the trial among African-Americans and white Americans.

Jacobs' primary method is narrative analysis. He analyzes several thousand news stories with respect to plot, characters, and genres. And he finds there are substantial and consistent differences between mainstream and African-American press accounts of Watts, Rodney King, and the innocent verdicts for the police assailants of Rodney King.

What Jacobs doesn't assert, and what probably isn't true, is that the perspective found in, say, the Chicago Defender, is a faithful, exact expression of the collective perspective and framing of the black public of Chicago at a point in time. Rather, the Defender is a media publication with an editorial perspective and a small group of writers and editors. They have their own perspectives. As Jacobs points out, the Defender helps to influence black perspective in Chicago, but it isn't identical to the mentality of the black Chicago public or publics. (One might speculate that much of Chicago's black youth took a more radical and less patient view of police harassment than the Defender.) In order to probe these mentalities on the ground, a different kind of research would be needed -- ethnographic rather than documentary.

So this invokes one of the themes of realism we've surfaced in recent posts: what can we say about the truth of the matter when it comes to assertions about social perceptions and representations? And here I'm not thinking of the veridicality of the black teenager's perceptions of the police, but rather the veridicality of the sociologist's representations of that group's perceptual scheme about race and the police. How does critical realism come into the picture when we are discussing intangible, subjective features of imagination and representation by a social group? Can we be realists about mentalities?

I believe that the answer is "yes". There are research methods that permit a degree of confidence in assessing the forms of thinking associated with a given group at a given time. These range from participant-observer methods, to ethnography more broadly, to the kind of historical ethnography practiced by Robert Darnton, to survey methods attempting to measure attitudes and values. These methods generally require interpretive skills and judgments on the part of the investigator -- in this respect the sociologist is also a humanist--but it is reasonable to think that evidence-based inquiry can lead to reasonably confident conclusions about facts of subjectivity.

And this leads to another connection to realism: subjective schemes of interpretation are linked to actions as well. Mentality and action are linked. So the fact that Chicago teenagers in 1968 perhaps shared a narrative of police brutality very plausibly played a causal role in their behaviors in Chicago's uprising. So realism about the causes of contentious politics requires a degree of realism about mentalities as well.

(All of the action in Jacobs' book involves Los Angeles, a city with a very specific racial history. Readers will find the Easy Rawlins novels of Walter Mosley a vivid representation of African-American life in LA in the 1950s -- e.g. A Red Death (Easy Rawlins Mysteries). But even here a question of realism arises: can we gain realistic understanding of a historical moment through a novel? Does Mosley offer a true depiction of race in LA?)

Thursday, March 1, 2012

Value-free economics?



A recent volume by Vivian Walsh and Hilary Putnam,  The End of Value-Free Economics, brings to a fine point a line of argument that has been brewing for fifteen years: is the logical positivist insistence on separating "fact-based" science from "value-based" ethics any longer a tenable one? Most particularly, are there now compelling reasons for declaring that mainstream economics needs to recognize that the distinction is wholly untenable? Is the zeal for insisting on "positive" economics now unsupportable? Should economists at last recognize that Lionel Robbins' strong exclusion of normative language from the science of economics both unjustified and unwise?  Walsh and Putnam argue that the answer to each of these questions is definitive: the strict dichotomy between fact and value in economics can no longer be supported.

The issue of facts and values has a number of sources within the empiricist tradition.  There is Hume's view that we can't derive "ought" from "is"; or in other words, that moral judgments are logically independent from empirical beliefs.  There is the positivists' criterion of significance, according to which the meaning of an utterance reduces to the empirical experiences that would demonstrate its truth or falsity.  (The two propositions together imply that moral sentences are meaningless or "non-cognitive", since the first proposition concedes that no empirical experience can demonstrate the truth or falsity of a normative statement.) And there is the positivists' idea that science is exclusively concerned with "facts"; but the first two propositions consign moral statements to the category of "value" rather than "fact", so science cannot contain normative vocabulary.  Another source was internal to debates within neoclassical economics itself: Lionel Robbins's arguments against interpersonal comparisons of utilities, based on the idea that making such comparisons unavoidably involves taking an evaluative stance towards the individuals in question.

The key idea advanced in The End of Value-Free Economics is that none of these philosophical ideas have survived the critique of positivism that was offered within philosophy of science and philosophy of language over the past fifty years.  The attempt to draw a sharp line between "fact" and "value" turns out to be impossible.  And this is equally so in economics.

Consider an example.  The concept of Pareto efficiency is defined in value-neutral terms: a distribution is Pareto-efficient if there is no other distribution that improves some individuals without harming at least one individual.  The concept of distributive justice is not value-neutral; it invokes the idea that some distributions are better because they are more fair or more just than others.  The positive economist holds that the latter set of distinctions are legitimate to make -- in some other arena.  But within economics, the language of justice and equity has no place.  The economist, according to this view, can work out the technical characteristics of various economic arrangements; but it is up to the political process or the policy decision-maker to arrive at a governing set of normative standards.  Walsh and Putnam (as well as Amartya Sen) dispute this view on logical grounds; and this leaves the discipline free to have a rational and reasoned discussion of the pros and cons of various principles of distributive justice.

Raising the issue of value-neutrality for economics is a frontal assault on the uncritical positivism that neoclassical economics incorporated from the 1930s and forward. But it is also an attack on something else--the no-longer acceptable idea that economists can only tell us how things are, not how they should be. Is famine worse than food sufficiency? Is literacy better than illiteracy? Is good health an improvement in wellbeing? If we take the view that "positive economics" cannot contain normative judgments, then none of these questions could be answered by an economist. "It depends on what you value." What Walsh, Putnam, Sen, and other contributors to this volume want to say is that this response is idiotic, and there is no basis in logic, science, or methodology that would support it. Of course economics, and economists, can find that starvation is a bad thing. Instead, they maintain that the best philosophy of language and philosophy of science supports the idea that value concepts and descriptive concepts are intermingled or "entangled", and that we can offer good reasons and evidence for evaluating claims involving both.

Why, some readers will ask, has Hilary Putnam become a central figure in this emerging debate? Putnam is known as a technically astute philosopher of mathematics, logic, and physics, and a philosopher of language; he is known for a sometimes wavering adherence to several versions of scientific realism; and he has made contributions of the greatest importance to each of these fields. But how did he come to get deeply immersed in the issue of the role of values in economics?

Vivian Walsh is one important part of the answer. Walsh undertook a series of articles in the 1980s and 1990s that were critical of the logical positivist assumptions that have lingered within the methodology of neoclassical economics. He took encouragement from the writings of Amartya Sen on welfare economics that confidently dismissed these positivist assumptions -- for example, the idea that science could not incorporate values or that statements about values were meaningless. (Lionel Robbins is offered as a particularly clear advocate of these views.) And Putnam worked up his reactions to these ideas into a novel book in 2002, The Collapse of the Fact/Value Dichotomy and Other Essays.

A key construct in the collaborative thinking that Putnam and Walsh have done together is the idea of the "second phase of classical theory." (Harvey Gram discusses this construction in detail in his contribution.) Walsh introduces the idea and Putnam follows up in his essay. What this refers to is the fact that classical political economy, as expressed by Smith and Ricardo, underwent a major intellectual revival in the 1960s when thinkers like Piero Sraffa proposed reappropriating some of their key analytical ideas. Sraffa's Production of Commodities by Means of Commodities : Prelude to a Critique of Economic Theory was a key product of this rethinking. The rethinking itself came about because of an uneasiness about the premises of neoclassical economics, and it stayed close to the core logical ideas. The first revival focused on Ricardo, but the second phase, Walsh argues, has given a much more nuanced interpretation of Smith himself.  Walsh finds that this reconsideration has been led by Amartya Sen and is more wide-ranging. Here is why Walsh thinks this reconsideration of Smith is important:
This is because Smith embedded a remarkable understanding of the core concepts of a political economy whose implications for moral philosophy he understood and explored.  The Smith texts as a whole offer a rich tapestry, interweaving threads of classical analysis, moral philosophy, jurisprudence, and history. (7)
And here is how Putnam summarizes Sen's contribution to this reconsideration of classical political economy:
If we are to understand Sen's place in history, the reintroduction of ethical concerns and concepts into economic discourse must not be thought of as an abandonment of "classical economics"; rather it is a reintroduction of something that was everywhere present in the writings of Adam Smith, and that went hand-inhand with Smith's technical analyses. This is something that Sen himself stresses. (quoted by Walsh, 29)
Amartya Sen has argued throughout his career for the robust possibility of reasoning about value issues -- in economics and elsewhere. (A very early place where Sen takes up this topic is in "The Nature and Classes of Prescriptive Judgements"; link.) Much of what Sen brings to this debate within economics, according to Walsh and Putnam, is found in his capabilities theory as a foundation for a theory of welfare or wellbeing. This theory is based on the idea of human functionings; and there is a plain intermingling of factual and evaluative ideas associated with this notion.  We need to know what human beings can and want to do, before we can say how well off they are. And this means bringing in orienting human values at the foundations. Putnam draws attention to Martha Nussbaum's list of core human capabilities. Anyone reading these descriptions would agree that they presuppose human values. And Nussbaum (as well as Sen and Putnam) believes that we can rationally discuss and evaluate these. But if welfare economics is to incorporate a substantive notion of human wellbeing, then it plainly cannot be maintained that it is "value-free".

Another important locus for Sen's reintroduction of ethical concepts into economics is his critique of the narrow conception of individual economic rationality.  As Sen puts the point in "Rational Fools" (link),
A person thus described may be "rational"in the limited sense of revealing no inconsistencies in his choice behavior, but if he has no use for these distinctions between quite different concepts, he must be a bit of a fool. The purely economic man is indeed close to being a social moron. Economic theory has been much preoccupied with this rational fool decked in the glory of his one all-purpose preference ordering. To make room for the different concepts related to his behavior we need a more elaborate structure. (336)
Sen introduces the idea of "commitments" directly into the concept of economic rationality.  Individuals choose among preference rankings based on their commitments -- to each other, to political ideas, to groups with whom they have decided to affiliate.  And this brings normative ideas directly into economic decision-making -- and therefore into the domain of economics.

Walsh and Putnam insist on a point that seems very important to me as well: it is the dichotomy between facts and values, or between positive and normative analysis, that they reject. They do not reject the idea that there are facts and there are values. But they believe in important respects these categories are intertwined and inseparable. They argue for "entanglement" and "rich description." They believe that it is fully possible and acceptable to engage in rational debates over the best theory of justice, or human nature, or human freedom; and to do so within economics as well as outside of economics.  And they believe that science can handle its goals without this sharp dichotomy.

Sunday, April 19, 2009

Objectivity and bias in complex happenings


Complicated things happen: riots occur, military coups take place, governments collapse. The happenings consist of a myriad of events and actions, many social actors, and a range of political interests and grievances. We want to know what happened; who did what; and who is responsible for the course that events took. It is one of the tasks of journalists, commentators, and historians to arrive at accounts of complicated things that answer many of these questions. And we want those accounts to be objective, truthful, and unbiased. Each account is a creative act of selection and narrative construction; the analyst has to sort out the evidence that is available to him or her and arrive at a chronology and a causal interpretation that makes sense, based on the evidence.

What we want from the historian and the journalist is easily described, though achieved with difficulty. We want an account that provides an accurate and truthful narrative of the events, based on the best available factual and historical information. We want an account that avoids the biases of the actors, including especially those of the most powerful actors who have the greatest capacity to shape the story -- the government, the military, and the major parties. We want an investigator who is able to question his/her own initial assumptions -- sympathy for the underdog, patient acceptance of the government's good intentions, or whatever. And we want a narrative that provides a balanced synthesis of the many events of the time period into a storyline with a degree of coherence: what the major events were, what choices were made by the actors, what the motivations of the actors were, and perhaps -- who acted responsibly and who acted recklessly or out of narrow self-interest.

It has to be acknowledged at the start that there are often multiple truthful, unbiased narratives that can be told for a complex event. Exactly because many things happened at once, actors' motives were ambiguous, and the causal connections among events are debatable, it is possible to construct inconsistent narratives that are equally well supported by the evidence. Further, the intellectual interest that different reporters bring to the happening can lead to differences in the narrative: one reporter may be primarily interested in the role that different views of social justice played in the actions of the participants; another may be primarily interested in the role that social networks played, so the narrative is structured around network connections; and a third may be especially interested in the role of charismatic personalities, with a consequent structuring to the narrative. Each of these may be truthful, objective, unbiased -- and inconsistent in important ways with the others. So narratives are underdetermined by the facts. And there is no such thing as an exhaustive and comprehensive telling of the story -- only various tellings that emphasize one set of themes or another. That said -- it is entirely possible that a given event will have provided enough factual data in the form of witness reports, government documents, YouTube videos, etc., that the main sequence of events, cast of actors and responsibility for events are unambiguous.

The example I'm thinking of in particular is the recent period of demonstration and riot in Bangkok involving red shirts, followers of former prime minister Thaksin, and the government and military. (See several other posts here and here.) But other examples are easily found: the taking of the Bastille, the Haymarket Square riot in Chicago (pictured above), the return of Franco to Malaga, or the decision of General MacArthur to cross the Yalu River in Korea. Virtually every historical event is a complex happening; so the problems raised here are endemic to historical interpretation.

One of the important issues being debated right now in Thailand is the question of arriving at a balanced and fact-based judgment of the amount of force that was used by the military in dispersing the crowds of protesters on April 13-14. The government reports that it used minimal force -- paper bullets, firm orders to fire above the crowds when using live ammunition, and a very low number of casualties as a result. Critical observers suspect a different story; based on memories of past repression by the military in times of street demonstrations, there is suspicion that the amount of violence was much greater. Some commentators speculate that there may have been many more deaths than have been reported and that the bodies were secretly taken away; ambiguous videos are brought forward as evidence for this possibility. So how are we to sort out the truth of the matter?

We can raise the question of objectivity at two levels: the investigator and the narrative. So let's begin with the narrative itself -- what do we want in a good comprehensive piece of journalism that tells this story accurately and fairly? We want an account that lays out the causes, events, and actions that made up this period of several weeks of protest and reaction. We want to know what organizations and leaders took what actions at what time, to call forth what organized responses. We want to know what key decisions the government made. We want to know how the prime minister and the police and military deliberated about responses to massive demonstrations. We want to know how the several occasions of mob violence against officials and offices transpired. We want to know the crucial details of the final hours of confrontation between the military and the crowd, and the degree of violence that transpired at that point.

And what do we want from the investigator of this complex happening in Bangkok? We want a commitment to arriving at the most truthful account of the story possible; a commitment to considering the full range of empirical and factual evidence available; and an ability to tell the story without regard to one's antecedent affinities and loyalties. It shouldn't be a "yellow shirt" or a "red shirt" story; it should be a factual story, based on critical reading and assessment of the available evidence. In order to arrive at such an account, the honest reporter needs to exercise critical good sense about the sources and the interests that the conveyors of the information have: the biases of the government, the press, and the parties as they provide evidence and interpretation of the events. And we want this account to be as free as possible of the interfering influences of bias and political interest. We want an honest and comprehensive synthesis, not a one-sided spin.

The good news is -- both goals are possible. The standards and values associated with both good historical writing and good journalism lead at least some investigators to exert their talents and integrity to do the best job they can to use the evidence to discover the details of the story. Not all journalists are equally committed to these standards -- that's why we prefer the I. F. Stones to the Jayson Blairs of the world. But enough are committed that we've got a good shot at sorting out the realities and responsibilities of the complex happenings that surround us through their objective, fact-based reporting.

Tuesday, December 9, 2008

Objectivity in the social sciences

What is objectivity in social science? What might be meant by the claim that a given theory represents an objective scientific analysis of a range of social phenomena? Debate over the objectivity of social science has often combined a variety of separate theses:
  1. There are social facts that are independent of the concepts and theories of the scientist which the theory is intended to uncover--that is, that there is an objective social world. (ontological objectivity)
  2. It is possible for a theory of a given range of social facts to be well-grounded on the basis of the right sorts of reasons (empirical and theoretical adequacy). (epistemic objectivity)
  3. Social facts are independent of the states of consciousness of participants.
  4. Scientific inquiry can be value-free and interest-neutral.
  5. Scientific inquiry tends to converge around a consensus among all researchers over the properties of the world as a result of further empirical and theoretical research.
Thesis (1) contradicts conceptual relativism. Thesis (2) contradicts a family of underdetermination arguments within the philosophy of science. Thesis (3) divides materialist social science from interpretation theory and verstehen sociology. Thesis (4) upholds the position that it is possible to exclude value commitments from the conduct of science. And thesis (5) asserts that science progresses towards a higher degree of agreement among researchers.

We may dispense quickly with (4). It is unquestionably true that scientific research is interest-relative: what particular features of the social system, what aspects of action, and what causal processes, are selected for scrutiny and explanation, are dependent on the interests--both intellectual and moral--of the investigator. Further, it is plain that scientific reasoning presupposes a set of normative commitments--for example, to the primacy of empirical evidence over religious authority. But Weber's treatment of this issue is convincing; these points do not diminish the objectivity of science in "'Objectivity' in Social Science" (The Methodology Of The Social Sciences). Once having defined the program of research, it is still possible to arrive at an objective analysis of the subject matter.

Thesis (1) represents a general metaphysical view of the social world, in that it asserts the mind-independence of various kinds of social processes, structures, etc. Scientific researc attempts to identify underlying processes, structures, mechanisms, and the like, whose properties explain the observable data. This goal presupposes that social phenomena are the result of a set of causally ordered, objective social processes which the social scientist can discover and map out. (Call this the realism component.) (It might be noted that (1) does not commit one to methodological holism. The objective social facts referred to may well supervene upon facts about individual actions.)

Thesis (2) represents the view that scientific theories are put forward as being justified on the basis of a "scientific method" and not simply personal advocacy, political bias, or one's value perspective. There need to be objective procedures in terms of which to compare competing theories and to provide empirical and logical arguments favoring one such theory over its competitors. (Call this the justification component.)

Thesis (5) represents the view that scientific inquiry progresses towards consensus among members of a given research community, and that this consensus is best explained on the hypothesis that the consensus theory is true, and has been arrived at through reliable procedures of scientific inquiry. (Bernard Williams describes this view briefly in Ethics and the Limits of Philosophy, chapter 8.)

Various combinations of these components of objectivity in social science are possible. For example, Weber appears to affirm (1) and hold that there are social facts; he denies (3), asserting that these facts are "subjective" in the sense that they depend essentially on the states of mind of the persons whose meaningful behavior constitutes them; and he accepts (2), holding that it is possible to offer theoretically and empirically well-grounded descriptions of these facts (Weber, Methodology, chapter 2). Nelson Goodman appears to contradict (1), maintaining that there are as many social worlds as there are schemes of concepts in terms of which to organize and describe experience (Ways of Worldmaking). Such a view is forced to reject (2) as well, since it maintains that there is no uniquely best theory of the world. It would be possible to reject (1) while maintaining (2)--that is, to hold that there is a best social scientific theory of a given range of social phenomena, but deny that such a theory describes an independently existing set of social facts. (For example, Hilary Putnam's anti-realist arguments might illustrate this combination.)

The form of objectivity of social science that I want to defend affirms (1) and (2). Concerning thesis (3), I hold that there is no need to choose between "material" and "subjective" features of the social world. Some social facts may be constituted by the meanings attributed to them by participants, while others may be meaning-independent. And finally, I maintain that the procedures internal to various social science disciplines are sufficient to produce the sort of convergence of theoretical beliefs described in thesis (5) in most concrete historical and social science debates.