We consider the core-periphery model by Krugman (1991). The nature and stability of the possible steady states of the model have been made progressively precise, see Fujita et al. (1999) and Baldwin et al. (2003). In that model as well as in all the new economic geography models that have been...

We consider a continuous spatial economy consisting of pure exchange local economies. Agents are allowed to change their location over time as a response to spatial utility differentials. These spatial adjustments toward higher utility neighborhoods lead the spatial economy to converge to a...

We study a general equilibrium model of global trade and local migration in a continuous geographical space. Trade is based on the Dixit-Stiglitz model of monopolistic competition. Migration is modelled as a local interaction decision process. Incentives for migration are of two types:...

Social interactions are at the essence of societies and explain the gathering of individuals in villages, agglomerations, or cities. We study the emergence of multiple agglomerations as resulting from the interplay between spatial interaction externalities and competition in the land market. We...