Evolutionarily Stable Preferences Against Multiple Mutations
2015/12/08
研討會日期 : 2015-12-08
時間 : 14:30
主講人 : Professor Wei-Torng Juang
主持人 : Professor Chu-An Liu
地點 : Conference Room B110
演講者簡介 : Professor Juang received his Ph.D. in Economics from University of Cambridge in 1998. He is currently an Associate Research Fellow at Institute of Economics, Academia Sinica. His research fields are Microeconomics and Mathematical Economics.
演講摘要 : We use the "indirect evolutionary approach" to study the evolution of preferences and the induced outcomes in multi- and single-population settings, respectively. Each agent has subjective preferences concerning outcomes, and agents are randomly matched to play an n-player game in strategic form. But their actual fitness for each strategy profile is assigned by a material payoff function. By introducing multiple mutations, mutants may undertake correlated strategies to exploit the incumbents, which further refines the set of stable preferences. We examine necessary and sufficient conditions for evolutionary stability against multiple mutations; we characterize the relations between the order of stability and the level of efficiency in the two population settings.
