In this paper, we study how local border reforms affect economic activity. To do so, we make use of large-scale municipal merger reforms in Germany to assess the effect of local border changes on the distribution of activity in space, an issue that has not been addressed in existing literature....

We set up a trade model with heterogeneous firms and a worker population that is heterogeneous in two dimensions: workers are either skilled or unskilled, and within each skill category there is a continuum of abilities. Workers with high abilities, both skilled and unskilled, are matched to...