The Spread of Free-Riding Behavior in a Social Network

被引:0
|
作者
Dunia López-Pintado
机构
[1] Departamento de Economía,
[2] Universidad Pablo de Olavide,undefined
关键词
free-ride; independent set; local public good; mean field; social network; C45; C73; D00;
D O I
10.1057/eej.2008.30
中图分类号
学科分类号
摘要
We propose a model where agents located in a social network decide whether or not to exert effort to provide a local public good. We assume that they have strong incentives to free-ride on their neighbors’ effort decisions. We characterize the equilibria of the induced game. We also study a mean-field dynamics in which agents choose in each period the best response to the last period's decisions of their neighbors. We characterize the fraction of free-riders in the stable state of such a dynamics and show how it depends on properties of the degree distribution.
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页码:464 / 479
页数:15
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