2017 Fiscal Year Final Research Report
A study on endogenous competition structure in oligopolies
| Project/Area Number |
15K03347
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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 |
Economic theory
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 内生的競争構造 / endogenous timing game / price-quantity choice / free entry / mixed oligopolies / non profit maximizing / externality / competition policy |
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| Outline of Final Research Achievements |
I investigate the endogenous timing game and endogenous price-quantity contract game and examine the relationship between these two endogenous competition structure model. I first investigate equilibrium outcomes of the endogenous price-quantity contract game in which two non-profit maximizers play and compare those in the endogenous timing game. I find that the threshold value at which the property of equilibrium outcome changes is the same in the two games. However, I find that the property of equilibrium outcomes is different from each other. Next, I investigate the endogenous timing game in mixed oligopolies and find that the equilibrium property depends on the degree of product differentiation and negative externality. Third, I investigate the endogenous price-quantity contract game in a mixed oligopoly and find that the equilibrium depends the number of firms.
In addition, I investigate free entry markets as another endogenous competition structure model and show basic property.
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| Free Research Field |
産業組織
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