Working Paper No. 489

Evolution, Rationality and Equilibrium in Games

Published: October 1997Pages: 10Keywords: GamesJEL-codes: C72; C7

Evolution, Rationality and Equilibrium in Games Jörgen W. Weibull


Evolutionary game theory studies the robustness of strategy profiles and sets of strategy profiles with respect to evolutionary forces in games played repeatedly in large populations of boundedly rational agents. The approach is macro oriented in the sense of focusing on the strategy distribution in the interacting population(s). Some main features of this approach are here outlined, and connections with learning models and standard notions of game-theoretic rationality and equilibrium are discussed. Some desiderata and results for robust long-run predictions are considered.

Interdisciplinary European Studies

The European Union in a Changing World Order

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This book explores how the European Union responds to the ongoing challenges to the liberal international order. These challenges arise both within the EU itself and beyond its borders, and put into question the values of free trade and liberal democracy. 

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