网络中的远视操纵与剥削

Farsighted manipulation and exploitation in networks

Journal of Economic Theory · 2021
被引 6
人大 AABS 4

中文导读

研究网络公共品博弈中,一个远视玩家如何利用策略剥削近视玩家,证明最优策略存在且收益唯一,并分析网络结构对远视玩家长期收益的影响。

Abstract

Farsighted economic agents can use their advantage to exploit their more myopic counterparts. In public goods games played on networks, such an agent will attempt to manipulate as many of his neighbors as possible to contribute to the public good. We study the exploitation of a myopic population by a single farsighted player in such games. We show the existence and payoff-uniqueness of optimal farsighted strategies in every network structure. For all optimal strategies, the set of absorbing effort profiles is non-empty and is generally neither a subset or a superset of the set of Nash equilibria of the static game. Optimal long-run effort profiles for the farsighted player can be reached via a simple dependence-withdrawal strategy and the farsighted player's effects on the myopic players are only felt locally. We characterize the lower and upper bounds of long-run payoffs the farsighted player can attain in a given network and examine comparative statics with respect to adding a new link. The farsighted player always benefits from linking to more opponents and is always harmed by his neighbors linking to each other.

远视操纵网络剥削公共品博弈最优策略