The normative gap: mechanism design and ideal theories of justice

摘要

This paper investigates the relationship between economic theory and theories of justice in the design of public policy. In particular, it focuses on the role of mechanism design in policy contexts beset with issues of social, racial and distributive justice. Economists' involvement in redesigning Boston's algorithm for allocating K-12 students to public schools serves as an instructive case study. The paper draws on the distinction betweenideal theoryandnon-ideal theoryin political philosophy and the concept ofperformativityin economic sociology to argue that mechanism design can enact elaborate ideal theories of justice. Anormative gapthus emerges between the goals of the policymakers and the objectives of economic designs. As a result, mechanism design may obstruct stakeholders' avenues for normative criticism of public policies, and serve as a technology of depoliticization.