The Nature of Prejudice

This article presents an agent-based computational model of civil violence. Two variants of the civil violence model are presented. In the first a central authority seeks to suppress decentralized rebellion. In the second a central authority seeks to suppress communal violence between two warring ethnic groups.

Chapter 11. MODELING CIVIL VIOLENCE: AN AGENT-BASED COMPUTATIONAL APPROACH

The adjusting rod of a lip adjusting mechanism is provided with an indicator which overlies a scale means on which a curved line representative of the lip motion is disposed. Movement of the lip from one position to another is indicated by movement of the indicator along the curved line. A scale is also used with the curved line to measure the displacement of the lip and, thus, the size of the gap defined in part by the lip.

Psychology as Politics.

The Psychology of Politics

Pacific Division of the American Philosophical Association

Philosophers have done significant work on concepts of ‘race’ and ‘racism’, on the ethics of a spectrum of race-conscious policies proposed to address a history of discrimination, and on identity and the experience of race (Outlaw 1996; Boxhill 2001; Bernasconi 2001a; Goldberg 1990; Appiah and Gutmann 1996). That work consists primarily of conceptual and normative analyses of prejudice and of the social policies designed to address it. Philosophers have also considered internal questions of racism within the canonical history of Western Philosophy, in for example Aristotle, Kant, and Hegel (Popkin 1980; Bernasconi 2001b). What has been lacking, however, is sustained philosophical analysis regarding issues raised in the extensive social psychological literature: questions regarding the nature and formation of prejudice, questions regarding the social dynamics of prejudice, and questions regarding prospects for prejudice reduction. Here, explanation is central. If we cannot accurately explain how prejudice occurs and how it can be reduced, how are we to construct adequate public policy? The lack of philosophical attention in this area is thus particularly conspicuous and unfortunate. As a first step toward remedying this situation—and with an eye toward public policy— we apply spatialized game theory and multi-agent computational modeling as philosophical tools: (1) for assessing the primary social psychological hypothesis regarding prejudice reduction, and (2) for pursuing a deeper understanding of the basic mechanisms of prejudice reduction. Social modeling in general has a philosophical pedigree that extends at least back to Hobbes and Locke. The particular techniques of social simulation employed here are relatively new, however, and raise important questions for the philosophy of science. For that reason we proceed reflexively, commenting throughout on both the promise of simulational techniques for social psychology and public policy and their inherent limitations.

/pdf/modeling-prejudice-reduction-spatialized-game-theory-and-the-byquex2dwh.pdf

Modeling Prejudice Reduction: Spatialized Game Theory and the Contact Hypothesis

Robustness has long been recognized as an important parameter for evaluating game-theoretic results, but talk of ‘robustness’ generally remains vague. What we offer here is a graphic measure for a particular kind of robustness (‘matrix robustness’), using a three-dimensional display of the universe of 2 × 2 game theory. In such a measure specific games appear as specific volumes (Prisoner’s Dilemma, Stag Hunt, etc.), allowing a graphic image of the extent of particular game-theoretic effects in terms of those games. The measure also allows for an easy comparison between different effects in terms of matrix robustness. Here we use the measure to compare the robustness of Tit for Tat’s well-known success in spatialized games (Axelrod, R. (1984). The evolution of cooperation. New York: Basic Books; Grim, P. et al. (1998). The philosophical computer: Exploratory essays in philosophical computer modeling. Cambridge, Mass: MIT Press) with the robustness of a recent game-theoretic model of the contact hypothesis regarding prejudice reduction (Grim et al. 2005. Public Affairs Quarterly, 19, 95–125).

/pdf/a-graphic-measure-for-game-theoretic-robustness-kwfwtl037l.pdf

A graphic measure for game-theoretic robustness

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Modeling Prejudice Reduction: Spatialized Game Theory and the Contact Hypothesis

A graphic measure for game-theoretic robustness