We examine “agglomeration shadows” that emerge around large cities, which discourage some economic activities in nearby areas. Identifying agglomeration shadows is complicated, however, by endogenous city formation and \wave interference" that we show in simulations. We use the locations of...

I analyze the demand side impacts of a supply side intervention into the market for illegal drugs in what has been described as America's largest open air drug market. Beginning in 2018, the Pennsylvania Attorney General's office and the Philadelphia Police Department engaged in an ambitious...

We study the implications of financial-market imperfections on labor and capital misallocation in China. Financial friction stems from private sectors' credit constraints that limit the efficient use of capital relative to state firms. Our model can jointly explain labor flows out of and capital...

We examine “agglomeration shadows” that emerge around large cities, which discourage some economic activities in nearby areas. Identifying agglomeration shadows is complicated, however, by endogenous city formation and \wave interference" that we show in simulations. We use the locations of...

We analyze the impacts of three major unexpected border regime changes that occurred during the course of 20th century on population growth along the Austrian-Czech border. Using historical municipal-level census data reaching back to 1880, we find no effects of the dissolution of the...