James P. Sterba offers something that philosophers have long sought: an argument showing that morality is rationally required. Furthermore he argues that morality requires substantial equality. Even libertarian perspectives, which would seem to require minimal enforcement of morality, are shown to lead to a requirement of equality.

Rationality and freedom are among the most profound and contentious concepts in philosophy and the social sciences. In this, the first of two volumes, Amartya Sen brings clarity and insight to these difficult issues.

Though the revised edition of A Theory of Justice, published in 1999, is the definitive statement of Rawls's view, so much of the extensive literature on Rawls's theory refers to the first edition. This reissue makes the first edition once again available for scholars and serious students of Rawls's work.

In this thought-provoking study, Jack Russell Weinstein suggests the foundations of liberalism can be found in the writings of Adam Smith (1723-1790), a pioneer of modern economic theory and a major figure in the Scottish Enlightenment. While offering an interpretive methodology for approaching Smith's two major works, "The Theory of Moral Sentiments "and "The Wealth of Nations," Weinstein argues against the libertarian interpretation of Smith, emphasizing his philosophies of education and rationality. Weinstein also demonstrates that Smith should be recognized for a prescient theory of pluralism that prefigures current theories of cultural diversity.

One of the world's most important political philosophers, Jon Elster is a leading thinker on reason and rationality and their roles in politics and public life. In this short book, he crystallizes and advances his work, bridging the gap between philosophers who use the idea of reason to assess human behavior from a normative point of view and social scientists who use the idea of rationality to explain behavior. In place of these approaches, Elster proposes a unified conceptual framework for the study of behavior. Drawing on classical moralists as well as modern scholarship, and using a wealth of historical and contemporary illustrations, Reason and Rationality marks a new development in Elster's thinking while at the same time providing a brief, elegant, and accessible introduction to his work.

Most contemporary moral and political philosophers would like to have an argument showing that morality is rationally required. In From Rationality to Equality, James P. Sterba provides just such an argument and further shows that morality, so justified, requires substantial equality. His argument from rationality to morality is based on the principle of non-question-beggingness and has two forms. The first assumes that the egoist is willing to argue for egoism non-question-beggingly, and the second only assumes that the egoist is willing to assent to premises she actually needs to achieve her egoistic goals. Either way, he argues, morality is rationally (i.e., non-question-beggingly) preferable to egoism. Sterba's argument from morality to equality non-question-beggingly starts with assumptions that are acceptable from a libertarian perspective, the view that appears to endorse the least enforcement of morality, and then shows that this perspective requires a right to welfare which, when extended to distant peoples and future generations, leads to equality. He defends his two-part argument against recent critics, and shows how it is preferable not only to alternative attempts to justify morality, but also to alternative attempts to show that morality leads to a right to welfare and/or to equality.

In Consistency, Choice, and Rationality, economic theorists Walter Bossert and Kotaro Suzumura present a thorough mathematical treatment of Suzumura consistency, an alternative to established coherence properties such as transitivity, quasi-transitivity, or acyclicity. Applications in individual and social choice theory, fields important not only to economics but also to philosophy and political science, are discussed. Specifically, the authors explore topics such as rational choice and revealed preference theory, and collective decision making in an atemporal framework as well as in an intergenerational setting.