11. Evolutionary stability: cooperation, mutation, and equilibrium

Game Theory (ECON 159)

We discuss evolution and game theory, and introduce the concept of evolutionary stability. We ask what kinds of strategies are evolutionarily stable, and how this idea from biology relates to concepts from economics like domination and Nash equilibrium. The informal argument relating these ideas toward at the end of his lecture contains a notation error [U(Ŝ,S') should be U(S',Ŝ)]. A more formal argument is provided in the supplemental notes.

00:00 - Chapter 1. Game Theory and Evolution: Evolutionarily Stable Strategies - Example
25:40 - Chapter 2. Game Theory and Evolution: Evolutionarily Stable Strategies - Discussion
30:42 - Chapter 3. Game Theory and Evolution: Evolutionarily Stable Strategies Are Always Nash Equilibria
42:32 - Chapter 4. Game Theory and Evolution: Nash Equilibria Are Not Always Evolutionarily Stable Strategies
01:03:00 - Chapter 5. Game Theory and Evolution: Evolutionarily Stable Strategies and Nash Equilibria - Discussion

Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses

This course was recorded in Fall 2007.

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Tags:

• best
• response
• dominant
• strategies
• evolutionary
• stability
• Nash
• equilibrium
• Prisoners
• Dilemma
• pure