This paper studies whether agents must agglomerate at a single location in a class of models of two-sided interaction. In these models there is an increasing returns effect that favors agglomeration, but also a crowding or market-impact effect that makes agents prefer to be in a market with...

This paper develops a model of economic geography that examines how the distribution of economic activity may change as a country opens up to foreign trade. The distinctive features of the model are that transportation is costly between locations within a nation as well as between nations, and...

This paper delves into geographical agglomeration patterns of economic activities focusing on the connection between these agglomeration tendencies and sectoral patterns of innovative activities. Within a broad evolutionary perspective, we refine upon incumbent statistical models, trying to...