| 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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| 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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