In this note we show how a considerably simpler model than the one in our original JDE 2006 paper generates all the same results. We also acknowledge an error in the specification of a utility function in our previous paper.

This paper builds a model of competition through fundraising between horizontally differentiated NGOs. NGOs allocate their time resource between working on the project and fundraising, which attracts private donations. If the market size is fixed, the fundraising levels increase with the number...

We develop a search-matching model with rural-urban migration and an explicit land market. Wages, job creation, urban housing prices are endogenous and we characterize the steady-state equilibrium. We then consider three different policies: a transportation policy that improves the public...

We consider a model of international migration where skills of workers are imperfectly observed by firms in the host country and where information asymmetries are more severe for immigrants than for natives. Because of imperfect information, firms statistically dicriminate highly-skilled...

A labor market model is developed in which the formal sector is characterized by search frictions whereas the informal sector is competitive. We show that there exists a unique steady-state equilibrium in this dual economy. We then consider different policies financed by a tax on firms' profits....