| Project/Area Number |
24510212
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Kanazawa Gakuin University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 企業 / 成長 / ジブラ則 / 反転対称性 / 非ジブラ則 / 企業規模量 / 成長則 / Gibrat則 / 非Gibrat則 / Cobb-Douglas生産関数 / 準反転対称性 / 技術力 / 経済物理学 / ベキ分布 / 対数正規分布 / Ｇｉｂｒａｔ則 / 非Ｇｉｂｒａｔ則 / Ｃｏｂｂ－Ｄｏｕｇｌａｓ生産関数 / 成長率分布 / ベキ成長 / 企業年齢分布 / 企業活動崩壊率 / 付加価値 |
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| Outline of Final Research Achievements |
Employing financial database of Japanese firms, we clarified that total factor productivity in firms follows power law observed in sales (Y) and number of employees (L) and that sales of firms are significantly influenced by number of employees. We also proved the equivalence of the Cobb-Douglas production function and the inverse symmetry observed in sales, assets (K), and number of employees. Furthermore, we confirmed that Gibrat's law and inverse symmetry among sales, assets, and number of employees of firms, and using them we identified the exact functional form of the probability density function (K;L). We found that the average firm growth follows power law first ten years from their birth, however, the growth follows gentle exponential function, and showed that Non-Gibrat's law and Gibrat's law lead to this phenomena.
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