cluster together, turning location into a self-reinforcing process. Agglomeration raises the price of immobile local factors …

the hub, with better reciprocal access to spoke nations than to each other. Further liberalization induces agglomeration …

the agglomeration of increasing returns activities. When workers migrate towards locations with more firms and higher real … wages, this intensifies agglomeration. When workers do not move across regions, further reductions in transport costs make …

This Paper studies the theoretical micro-foundations of urban agglomeration economies. We distinguish three types of … characterization of some of the main theoretical underpinnings of urban agglomeration economies, to discuss modeling issues that arise … when working with these tools, and to compare different sources of agglomeration economies in terms of the aggregate urban …

Firms are more productive on average in larger cities. Two explanations have been offered: agglomeration economies … selection model and a standard model of agglomeration. Stronger selection in larger cities left-truncates the productivity … distribution whereas stronger agglomeration right-shifts and dilates the distribution. We assess the relative importance of …

income are supported by the agglomeration of industry in a subset of countries. Economic development may not be a gradual …