AGGLOMERATIVE FORCES AND CLUSTER SHAPES

• 成果类型: Article
• 署名作者: Kerr, William R.; Kominers, Scott Duke
• 署名单位: Harvard University; National Bureau of Economic Research
• 刊物名称: REVIEW OF ECONOMICS AND STATISTICS
• ISSN/ISSBN: 0034-6535
• DOI: 10.1162/REST_a_00471
• 发表日期: 2015-10
• 页码: 877-899
• 关键词: research-and-development; geographic concentration; knowledge spillovers; patent citations; increasing returns; industries; density; cities; coagglomeration; determinants

摘要

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 that are much larger than the underlying agglomerative forces themselves. Empirically, we demonstrate that our model's assumptions are present in the structure of technology and labor flows within Silicon Valley. Our model further identifies how the lengths over which agglomerative forces operate influence the shapes and sizes of industrial clusters; we confirm these predictions using variations across patent technology clusters.