Stability of Strict Equilibria in Best Experienced Payoff Dynamics: Simple Formulas and Applications

We consider a family of population game dynamics known as Best Experienced Payoff Dynamics. Under these dynamics, when agents are given the opportunity to revise their strategy, they test some of their possible strategies a fixed number of times. Crucially, each strategy is tested against a new rand...

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Detalhes bibliográficos
Autores: Izquierdo, Segismundo S., Izquierdo Millán, Luis Rodrigo
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2022
País:España
Recursos:Universidad de Burgos (UBU)
Repositório:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/7008
Acesso em linha:http://hdl.handle.net/10259/7008
Access Level:Acceso aberto
Palavra-chave:Best experienced payoff
Procedural rationality
Payoff-sampling dynamics
Stability
Matemáticas
Economía
Mathematics
Economics
Descrição
Resumo:We consider a family of population game dynamics known as Best Experienced Payoff Dynamics. Under these dynamics, when agents are given the opportunity to revise their strategy, they test some of their possible strategies a fixed number of times. Crucially, each strategy is tested against a new randomly drawn set of opponents. The revising agent then chooses the strategy whose total payoff was highest in the test, breaking ties according to a given tie-breaking rule. Strict Nash equilibria are rest points of these dynamics, but need not be stable. We provide some simple formulas and algorithms to determine the stability or instability of strict Nash equilibria.