| Project/Area Number |
21360240
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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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 |
TAKASHI Akamatsu 東北大学, 大学院・情報科学研究科, 教授 (90262964)
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| Co-Investigator(Kenkyū-buntansha) |
IKEDA Kiyohiro 東北大学, 大学院・工学研究科, 教授 (50168126)
SAIKI Isao 東北大学, 大学院・工学研究科, 准教授 (40292247)
KONO Tatsuhito 東北大学, 大学院・情報科学研究科, 准教授 (00344713)
OTAZAWA Toshimori 東北大学, 大学院・情報科学研究科, 准教授 (30374987)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Keywords | 集積経済 / 人口移動 / 分岐理論 / 均衡選択 / 都市システム |
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| Research Abstract |
Two-location Core-Periphery (CP)models in New Economic Geography exhibit a bifurcation from a symmetric equilibrium to an asymmetric one, depending on transportation costs. This study reveals interesting bifurcation properties of the CP models in more general settings, such as a two-dimensional space and a multi-industry economy. Some of the major findings of this study are 1) Christaller's hexagonal agglomeration patterns are proven to exist as stable equilibria of the CP models on a two-dimensional lattice, 2)"Hierarchy principle" of industry agglomeration patterns holds for the multi-industry CP models, 3) the multi-industry CP models generate the population distributions that follow"central place regularities", i.e, the distribution satisfies a rank-size rule, a hierarchy principle, and a number-average size rule.
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