the agglomeration of agents in size or mass. We investigate agglomeration in sorting or by type of worker, that implies … agglomeration in size when worker populations differ by type. This kind of agglomeration can be driven by asymmetric information in …

-standing question whether agglomeration economies derive from specialization (within-industry) or diversity (between-industry). We show …

Do agglomerations stimulate productivity? An extensive literature on agglomeration economies, or urban increasing … returns, has analyzed this question with aggregated spatial data. This paper estimates the relationship between agglomeration … learning effect in that agglomeration enhances firms’ productivity. Third, the role of agglomeration phenomena does not seem to …

construct a general-equilibrium model with dynamic interactions between spatial agglomeration and urban development. In contrast …