Empirical studies of intergenerational social mobility have found that women are more mobile than men. To explain this finding, we describe a model of multitrait matching and inheritance, in which individuals’ attractiveness in the marriage market depends on their market and non-market...

We investigate the theoretical relationship between wage concentration and international market integration. Access to imported varieties lowers the cost of intermediate inputs (“machines”) used to carry out production tasks, causing workers with different comparative abilities to be sorted...

We examine why heterogenous communities may fail to provide public goods. Current work characterizes sanctioning free-riders as an under-supplied public good. We argue that often free-riders can be punished by the coordinated action of a group. This punishment can be profitable, and need not be...

Because energy subsidies affect incentives to invest in energy-saving equipment and technologies, they entail a classic investment hold-up problem: once investment has taken place, policymakers will tend to overuse them, which will in turn depress investment by forward-looking agents. Reforming...

We study contestability in non-profit markets where non-commercial providers supply a homogeneous collective good or service through increasing-returns-to-scale technologies. Unlike in the case of for-profit markets, in the non-profit case the absence of price-based sales contracts between...