The cost of segregation in (social) networks
研究了网络环境下私人提供公共品时收入再分配的福利效应，发现其由Bonacich中心性决定，并构建了一个基于网络结构的指数，表明在特定隔离互动的大群体中再分配政策趋于中性。
This paper investigates the welfare effect of income redistribution in the private provision of public goods on networks. We first show that the welfare effect of income redistribution is determined by Bonacich centrality. Then we develop an index based on the network structure of interactions, which, roughly speaking, measures the welfare effect of income redistribution confined to a component of contributors. The proposed index vanishes when applied to large components of contributors that display special segregated interactions, which suggests an “asymptotic neutrality” of redistributive policies.