经鸿之粟 | 乔磊常任副教授合作论文在经济学国际一类期刊在线发表

Perfect equilibrium and its refinements are widely studied and typically rely on full‑support perturbations. We introduce a δ‑localized notion of perfection for games with a continuum of players. It confines perturbations within a δ‑neighborhood of the underlying action distribution and eliminates undesirable equilibria from a local perspective. We establish the existence of a pure strategy δ‑localized perfect equilibrium and show that it is equivalent to δ‑admissible Nash equilibrium. We also study limit versions of δ‑localized perfection. Illustrative applications to large routing games and crowd saturation games are presented.