We model spatial clusters of similar firms. Our model highlights how agglomerative forces lead to localized, individual connections among firms, while interaction costs generate a defined distance over which attraction forces operate. Overlapping firm interactions yield agglomeration clusters...

This paper surveys the literature on the implications of trade liberalisation for intra-national economic geographies. Three results stand out. First, neither urban systems models nor new economic geography models imply a robust prediction on the impact of trade openness on spatial...

Recent scholarship has argued that the comparative success of the Silicon Valley high technology industrial district and failure of Route 128 outside of Boston, resulted from different patterns of inter-firm employee mobility which, in turn, led to differing patterns of industrial organization:...

We quantify agglomeration spillovers by estimating the impact of the opening of a large manufacturing plant on the total factor productivity (TFP) of incumbent plants in the same county. We use the location rankings of profit-maximizing firms to compare incumbent plants in the county where the...

Using patent citation data for the U.S., we test whether knowledge spillovers in biotechnology are sensitive to distance, and whether that sensitivity has changed over time. Controlling for self-citation by inventor, assignee and examiner, cohort-based regression analysis shows that physical...

This paper reviews academic research on the connections between agglomeration and innovation. We first describe the conceptual distinctions between invention and innovation. We then discuss how these factors are frequently measured in the data and note some resulting empirical regularities....

This research illuminates the historical development and clustering of creative activity in the United States. Census data is used to identify creative occupations (i.e., artists, musicians, authors, actors) and data on prominent creatives, as listed in a comprehensive biographical compendium....

This chapter describes how the spatial distribution of economic activity changes as economies develop and grow. We start with the relation between development and rural–urban migration. Moving beyond the coarse rural–urban distinction, we then focus on the continuum of locations in an...

This chapter reviews academic research on the connections between agglomeration and innovation. We first describe the conceptual distinctions between invention and innovation. We then discuss how these factors are frequently measured in the data and note some resulting empirical regularities....

This paper reviews academic research on the connections between agglomeration and innovation. The authors first describe the conceptual distinctions between invention and innovation. They then discuss how these factors are frequently measured in the data and note some resulting empirical...