A spatial economic theory of the regularities in spatial patterns and size distributions of cities and firms
| Project/Area Number |
25630212
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering project/Traffic engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 土木計画 / 集積立地 / 都市の規模分布 / 企業の規模分布 / 中心地理論 / 企業ネットワーク / べき乗則 |
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| Outline of Final Research Achievements |
Statistical distributions of economic activities are known to exhibit a robust regularity called rank-size rule, or Zipf's law. This study shows that rank-size rule of city size distribution emerges as an equilibrium outcome of a multi-industry spatial competition model with agglomeration economies, along with another well-known regularity, urban hierarchy principle. We then demonstrate that the distribution of firm size also obeys rank-size rule if the degree of heterogeneity of firms and industries (variance in the distribution of a parameter representing the heterogeneity) are larger than some threshold..
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Report
(3 results)
Research Products
(10 results)
