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May 1998
292 pp., 25 illus.
$50.00/£30.95 (CLOTH)
Short

ISBN-10:
0-262-06194-5
ISBN-13:
978-0-262-06194-0

Series
Economic Learning and Social Evolution
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Table of Contents
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The Theory of Learning in Games
Drew Fudenberg and David K. Levine

Series Forewordxi
Acknowledgmentsxiii
1Introduction 1
1.1Introduction1
1.2Large Populations and Matching Models4
1.3Three Common Models of Learning and/or Evolution7
1.4Cournot Adjustment8
1.5Analysis of Cournot Dynamics9
1.6Cournot Process with Lock-In10
1.7Review of Finite Simultaneous-Move Games12
Appendix: Dynamical Systems and Local Stability24
References27
2Fictitious Play29
2.1Introduction29
2.2Two-Player Fictitious Play30
2.3Asymptotic Behavior of Fictitious Play32
2.4Interpretation of Cycles in Fictitious Play35
2.5Multiplayer Fictitious Play37
2.6Payoffs in Fictitious Play39
2.7Consistency and Correlated Equilibrium in Games with Two Strategies43
2.8Fictitious Play and the Best-Response Dynamic44
2.9Generalizations of Fictitious Play46
Appendix: Dirichlet Priors and Multinomial Sampling48
References49
3Replicator Dynamics and Related Deterministic Models of Evolution51
3.1Introduction51
3.2Replicator Dynamics in a Homogenous Population53
3.3Stability in the Homogenous-Population Replicator Dynamic55
3.4Evolutionary Stable Strategies58
3.5Asymmetric Replicator Models63
3.6Interpretation of the Replicator Equation66
3.7Generalizations of the Replicator Dynamic and Iterated Strict Dominance73
3.8Myopic Adjustment Dynamics78
3.9Set-Valued Limit Points and Drift83
3.10Cheap Talk and the Secret Handshake89
3.11Discrete-Time Replicator Systems91
Appendix: Liouville's Theorem95
References96
4Stochastic Fictitious Play and Mixed-Strategy Equilibria101
4.1Introduction101
4.2Notions of Convergence102
4.3Asymptotic Myopia and Asymptotic Empiricism103
4.4Randomly Perturbed Payoffs and Smoothed Best Responses105
4.5Smooth Fictitious Play and Stochastic Approximation110
4.6Partial Sampling114
4.7Universal Consistency and Smooth Fictitious Play117
4.8Stimulus-Response and Fictitious Play as Learning Models121
4.9Learning about Strategy Spaces128
Appendix: Stochastic Approximation Theory130
References133
5Adjustment Models with Persistent Randomness137
5.1Introduction137
5.2Overview of Stochastic Adjustment Models138
5.3Kandori-Mailath-Rob Model142
5.4Discussion of Other Dynamics146
5.5Local Interaction149
5.6Radius and Coradius of Basins of Attraction154
5.7Modified Coradius157
5.8Uniform Random Matching with Heterogeneous Populations161
5.9Stochastic Replicator Dynamics163
Appendix A: Review of Finite Markov Chains168
Appendix B: Stochastic Stability Analysis171
References173
6Extensive-Form Games and Self-confirming Equilibrium175
6.1Introduction175
6.2An Example176
6.3Extensive-Form Games178
6.4A Simple Learning Model179
6.5Stability of Self-confirming Equilibrium184
6.6Heterogeneous Self-confirming Equilibrium185
6.7Consistent Self-confirming Equilibrium186
6.8Consistent Self-confirming Equilibria and Nash Equilibria188
6.9Rationalizable SCE and Prior Information on Opponents' Payoffs191
References199
7Nash Equilibrium, Large Population Models, and Mutations in Extensive-Form Games201
7.1Introduction201
7.2Relevant Information Sets and Nash Equilibrium202
7.3Exogenous Experimentation203
7.4Learning in Games Compared to the Bandit Problem207
7.5Steady-State Learning213
7.6Stochastic Adjustment and Backward Induction in a Model of "Fast-Learning"216
7.7Mutations and Fast Learning in Models of Cheap Talk223
7.8Experimentation and the Length of the Horizon226
Appendix: Review of Bandit Problems227
References229
8Sophisticated Learning231
8.1Introduction231
8.2Three Paradigms for Conditional Learning233
8.3Bayesian Approach to Sophisticated Learning235
8.4Interpreting the Absolute Continuity Condition238
8.5Choosing among Experts241
8.6Conditional Learning243
8.7Discounting247
8.8Categorization Schemes and Cycles249
8.9Introspective Classification Rules, Calibration, and Correlated Equilibrium254
8.10Sonsino's Model of Pattern Recognition259
8.11Manipulating Learning Procedures260
References266
Index269
 
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