Abstract

During the last 40 years, political philosophers have made important advances in our understanding of why equality is valuable, and what kind of equality is important. This article summarizes the development of these ideas, in particular, the contributions of John Rawls, Amartya Sen, Ronald Dworkin, Robert Nozick, Richard Arneson, and G. A. Cohen. It shows how these ideas have filtered into economic thinking in the conceptualization of equality of opportunity. It concludes with a brief discussion of how these ideas might be extended to evaluate intergenerational and global distributions of income or welfare.