The railway revolution that swayed through Europe in the nineteenth century left a legacy of unexplored networks. In this paper, we observe a subset of unfinished railways to evaluate the impact of railroads on population growth. Using the random nature of the achieved portions, we compare...

The well-known rise in the geographical concentration of hog production suggests the presence of agglomeration economies related to spatial spillovers and inter-dependencies among industries. In this paper, we examine whether manure management regulation restricting manure application per acre...