While inequality in resource endowments has been shown to affect cooperation levels in groups, much of this evidence comes from studies of within-group inequality. In an online public goods experiment, we instead examine the effects of payoff-irrelevant inequality in resources between groups on...

This study presents experimental evidence on the effectiveness of alternative institutional arrangements designed to allow providers of public good services to be subsidized by non-providers. The decision setting is a repeated linear public good game with two groups, insiders and outsiders....