Collective Rationality: Equilibrium in Cooperative Games
Groups of people perform acts that are subject to standards of rationality. A committee may sensibly award fellowships, or may irrationally award them in violation of its own policies. A theory of collective rationality defines collective acts that are evaluable for rationality and formulates principles for their evaluation. This book argues that a group's act is evaluable for rationality if it is the products of acts its members fully control. It also argues that such an act is collectively rational if the acts of the group's members are rational. Efficiency is a goal of collective rationality, but not a requirement, except in cases where conditions are ideal for joint action and agents have rationally prepared for joint action. The people engaged in a game of strategy form a group, and the combination of their acts yields a collective act. If their collective act is rational, it constitutes a solution to their game. A theory of collective rationality yields principles concerning solutions to games. One principle requires that a solution constitute an equilibrium among the incentives of the agents in the game. In a cooperative game some agents are coalitions of individuals, and it may be impossible for all agents to pursue all incentives. Because rationality is attainable, the appropriate equilibrium standard for cooperative games requires that agents pursue only incentives that provide sufficient reasons to act. The book's theory of collective rationality supports an attainable equilibrium-standard for solutions to cooperative games and shows that its realization follows from individuals' rational acts. By extending the theory of rationality to groups, this book reveals the characteristics that make an act evaluable for rationality and the way rationality's evaluation of an act responds to the type of control its agent exercises over the act. The book's theory of collective rationality contributes to philosophical projects such as contractarian ethics and to practical projects such as the design of social institutions.
1118901997
Collective Rationality: Equilibrium in Cooperative Games
Groups of people perform acts that are subject to standards of rationality. A committee may sensibly award fellowships, or may irrationally award them in violation of its own policies. A theory of collective rationality defines collective acts that are evaluable for rationality and formulates principles for their evaluation. This book argues that a group's act is evaluable for rationality if it is the products of acts its members fully control. It also argues that such an act is collectively rational if the acts of the group's members are rational. Efficiency is a goal of collective rationality, but not a requirement, except in cases where conditions are ideal for joint action and agents have rationally prepared for joint action. The people engaged in a game of strategy form a group, and the combination of their acts yields a collective act. If their collective act is rational, it constitutes a solution to their game. A theory of collective rationality yields principles concerning solutions to games. One principle requires that a solution constitute an equilibrium among the incentives of the agents in the game. In a cooperative game some agents are coalitions of individuals, and it may be impossible for all agents to pursue all incentives. Because rationality is attainable, the appropriate equilibrium standard for cooperative games requires that agents pursue only incentives that provide sufficient reasons to act. The book's theory of collective rationality supports an attainable equilibrium-standard for solutions to cooperative games and shows that its realization follows from individuals' rational acts. By extending the theory of rationality to groups, this book reveals the characteristics that make an act evaluable for rationality and the way rationality's evaluation of an act responds to the type of control its agent exercises over the act. The book's theory of collective rationality contributes to philosophical projects such as contractarian ethics and to practical projects such as the design of social institutions.
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Collective Rationality: Equilibrium in Cooperative Games

Collective Rationality: Equilibrium in Cooperative Games

by Paul Weirich
Collective Rationality: Equilibrium in Cooperative Games

Collective Rationality: Equilibrium in Cooperative Games

by Paul Weirich

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Overview

Groups of people perform acts that are subject to standards of rationality. A committee may sensibly award fellowships, or may irrationally award them in violation of its own policies. A theory of collective rationality defines collective acts that are evaluable for rationality and formulates principles for their evaluation. This book argues that a group's act is evaluable for rationality if it is the products of acts its members fully control. It also argues that such an act is collectively rational if the acts of the group's members are rational. Efficiency is a goal of collective rationality, but not a requirement, except in cases where conditions are ideal for joint action and agents have rationally prepared for joint action. The people engaged in a game of strategy form a group, and the combination of their acts yields a collective act. If their collective act is rational, it constitutes a solution to their game. A theory of collective rationality yields principles concerning solutions to games. One principle requires that a solution constitute an equilibrium among the incentives of the agents in the game. In a cooperative game some agents are coalitions of individuals, and it may be impossible for all agents to pursue all incentives. Because rationality is attainable, the appropriate equilibrium standard for cooperative games requires that agents pursue only incentives that provide sufficient reasons to act. The book's theory of collective rationality supports an attainable equilibrium-standard for solutions to cooperative games and shows that its realization follows from individuals' rational acts. By extending the theory of rationality to groups, this book reveals the characteristics that make an act evaluable for rationality and the way rationality's evaluation of an act responds to the type of control its agent exercises over the act. The book's theory of collective rationality contributes to philosophical projects such as contractarian ethics and to practical projects such as the design of social institutions.

Product Details

ISBN-13: 9780190452780
Publisher: Oxford University Press
Publication date: 12/01/2009
Sold by: Barnes & Noble
Format: eBook
File size: 866 KB

About the Author

Paul Weirich is Curators' Professor, Department of Philosophy, University of Missouri-Columbia

Table of Contents

1. Rationality Writ Large 1.1. Collective Acts 1.2. Method 1.3. Guide 2. Agents and Acts 2.1. Agents 2.2. Acts 2.3. Control 2.4. Evaluability 3. Rationality 3.1. Metatheory 3.2. Attainability 3.3. Comprehensiveness 3.4. Compositionality 4. Groups 4.1. Extension 4.2. Efficiency 4.3. Collective Utility 4.4. Compositionality 5. Games of Strategy 5.1. Games 5.2. Solutions 5.3. Standards 6. Equilibrium 6.1. Standards and Procedures 6.2. Utility Maximization 6.3. Self-Support 6.4. Strategic Equilibrium 6.5. Realization of an Equilibrium 6.6. Appendix: Realization of a Nash Equilibrium 7. Coordination 7.1. Strategy and Learning 7.2. Changing the Rules 7.3. An Efficient Equilibrium 7.4. Preparation 7.5. Intentions 8. Cooperative Games 8.1. Joint Action 8.2. Opportunities for Joint Action 8.3. Coalitional Games 8.4. The Core 8.5. An Empty Core 9. Strategy for Coalitions 9.1. A Coalition's Incentives 9.2. Paths of Incentives 9.3. Strategic Equilibrium in Coalitional Games 10. Illustrations and Comparisons 10.1. The Majority-Rule Game 10.2. Comparisons 10.3. Conflict 10.4. Collective Standards 11. Compositionality 11.1. Underlying Games 11.2. Confirmation 11.3. Agreement Games 11.4. The Core and Utility Maximization 11.5. Strategic Equilibrium and Self-Support 12. Implications 12.1. Social Institutions 12.2. Strategic Equilibrium and Institutions 12.3. Theoretical Unity 12.4. Future Research Notes References Index
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