We analyze conflicts between communities. A community-specific public good, to which members make voluntary contributions, defines communities. Some, but not all, members of one community may contribute towards another community’s public good. Such ‘bridging’ contributions will not occur...

We investigate how voluntary contributions to community-specific public goods affect (a) the relationship between inequality of incomes and inequality of welfare outcomes, and (b) individuals’ material incentives for supporting income redistribution. We show that the nominal distribution of...