I analyze the effects of ethnic divisions on the provision of public goods. Using OpenStreetMap data, I construct a new global dataset of locations of public amenities, such as schools, hospital and libraries. I allow for the possibility that the data may be systematically incomplete using two...

In a climate system that is indifferent about where mitigation is carried out, the logic of comparative advantages favors abatement locations in developing and rapidly industrializing countries. There is evidence, however, that citizens of industrialized countries who voluntarily fund climate...

We study the provision of public goods. Different public goods can be bundled provided there is enough capacity, i.e. resources to pay for all the public goods in the bundle. The analysis focuses on the all-or-nothing-mechanism: Expand provision as much as resource feasible if no one vetoes -...

We examine the effects of randomly introduced economic inequality on voluntary co- operation and whether this relationship is influenced by the quality of local institutions, as proxied by corruption. We use representative data from a large-scale lab-in-the-field public goods experiment with...

While trade unions have been studied in detail, there is virtually no economics research on employer associations (EAs), their counterparts in many countries. Here we argue that EAs are important economic agents as they provide sectoral public goods such as collective bargaining, training, and...

We study contracting between a public good provider and users with private valuations of the good. We show that, once the provider extracts the users' private information, she benefits from manipulating the collective information received from all users when communicating with them. We derive...

We examine the effects of randomly introduced economic inequality on voluntary cooperation, and whether this relationship is influenced by the quality of local institutions, as proxied by corruption. We use representative data from a large-scale lab-in-the-field public goods experiment with over...

Institutions for co-financing agreements often exist to encourage public good investment. Can such frameworks deliver maximal investment when agents are motivated by reciprocity? We demonstrate that indeed they can, but not in the way one might expect. If maximal investment is impossible in the...

This paper extends theory and experimentation in the context of two parties in a group who contribute to a public good with a provision point. This study analyzes the voluntary contributions game in which a public good is provided if and only if the sum of contributions meets or exceeds a...

A popular fundraising tool is donation matching, where every dollar is matched by a third party. But field experiments find that matching does not always increase donations. This may occur because individuals believe that peer donors will exhaust the matching funds, so their donation is not...