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Evolution of reciprocity with limited payoff memory

Nikoleta E. Glynatsi, Alex McAvoy and Christian Hilbe

Proc. Roy. Soc. B, 291: 20232493

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Biological and Cultural Evolution

  • Biological evolution�- No individuals’ cognitive abilities�- payoff -> fitness

  • Cultural evolution�- Individuals need to be aware of the different strategies�- They need to identify those strategies with a higher payoff

  • A large population

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Description of the game dynamics

Probability to cooperate in the first round

 

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Description of the game dynamics

Probability to cooperate in the first round

 

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Description of the evolution dynamics

 

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Stability of cooperative populations

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Stability of cooperative populations

For limited memory,

For perfect memory

 

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Evolutionary dynamics of reciprocity

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Increasing individual payoff memory