New economic geography focuses on the impact of falling transport costs on the spatial distribution of activities. However, it disregards the role of technological innovations, which are central to modern economic growth, as well as the role of migration costs, which are a strong impediment to...

We study urbanization and rural industrialization in a setting involving one urban region (U) and one rural region (R). Farmers are heterogeneous in their attitude toward migration, while firms' efficiency is higher in U than in R because agglomeration economies have been built in U. Farmers...