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 …

vertically), jurisdictional size asymmetries, and the potential for agglomeration economies. We survey the relevant theoretical … and of taxation in the presence of agglomeration rents. …

This paper develops a quantitative model of internal city structure that features agglomeration and dispersion forces … estimate agglomeration and dispersion forces, we use data on thousands of city blocks in Berlin for 1936, 1986 and 2006 and … residential externalities. We show that the model with the estimated agglomeration parameters can account both qualitatively and …