Ranking social states using individual rankings, strategic and non-strategic behaviors of individuals, ethical issues in distributional analysis.

This book analyzes the following four distinct, although not dissimilar, areas of social choice theory and welfare economics: nonstrategic choice, Harsanyi's aggregation theorems, distributional ethics and strategic choice. While for aggregation of individual ranking of social states, whether the persons behave strategically or non-strategically, the decision making takes place under complete certainty; in the Harsanyi framework uncertainty has a significant role in the decision making process. Another ingenious characteristic of the book is the discussion of ethical approaches to evaluation of inequality arising from unequal distributions of achievements in the different dimensions of human well-being. Given its wide coverage, combined with newly added materials, end-chapter problems and bibliographical notes, the book will be helpful material for students and researchers interested in this frontline area research. Its lucid exposition, along with non-technical and graphical illustration of the concepts, use of numerical examples, makes the book a useful text.

Utilitarianism and other aggregationist moral theories view the public interest or the general welfare as an aggregate of individual goods. But critics of these theories question whether there is adequate justification for employing the concept of an aggregate social good. How are we supposed to sum up individual interests? Is it even possible to compare the utilities of different people or to assign values to individual utilities that can be added or subtracted? If not, how is the general good to be aggregated? Critics have also raised concerns about the aggregative approach in ethics--concerns about its implications for distributive justice, individual liberty, and democratic institutions. The essays in this volume explore these issues and address related questions. Some of them examine specific objections to aggregation, others analyze the very idea of a social good or social welfare. Other essays discuss the application of aggregative principles to particular problems.

A comprehensive survey of computational aspects of collective decisions for graduate students, researchers, and professionals in computer science and economics.

This book, first published in 1991, offers an integrative approach to the study of formal models in the social and behavioural sciences. The theory presented here unifies both the representation of the social environment and the equilibrium concept. The theory requires that all alternatives that are available to the players be specified in an explicit and detailed manner, and this specification is defined as a social 'situation'. A situation, therefore, not only consists of the alternatives currently available to the players, but also includes the set of opportunities that might be induced by the players from their current environment. The theory requires that all recommended alternatives be both internally and externally stable; the recommendation cannot be self-defeating and, at the same time, should account for alternatives that were not recommended. In addition to unifying the representation and the solution concept, the theory also extends the social environments accommodated by current game theory.