| Project/Area Number |
16330044
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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 |
Applied economics
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| Research Institution | Keio University |
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Principal Investigator |
TANAKA Tatsuo Keio University, Department of Economics, Associate Professor, 経済学部, 助教授 (70236602)
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| Co-Investigator(Kenkyū-buntansha) |
KAWAI Hiroki Keio University, Department of Economics, Associate Professor, 経済学部, 助教授 (00276396)
YASAKI Yoshihito Kougakuin University, Department of Global Engineering, Assistant Professor, グローバルエンジニアリング学部, 専任講師 (10345150)
MURAKAMI Reiko Kinki University, Department of Economics, Assistant Professor, 経済学部, 専任講師 (30411565)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥14,200,000 (Direct Cost: ¥14,200,000)
Fiscal Year 2006: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2005: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 2004: ¥7,000,000 (Direct Cost: ¥7,000,000)
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| Keywords | Network Externality / Switching Cost / Application Software / Discrete Choice |
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| Research Abstract |
Network externalities and switching cost are estimated using individual users survey. Regarding the operating system of personal computers, there is a strong network externalities which even 10 years technological advantage can't overcome. Thus, it is very difficult for new firms enter the operating system market with a new technology. This result suggests that the operating system market is monopolized and competition pressure is weak.
As for IP phone market, on the other hand, network externalities are not so strong. Estimated network externalities and switching cost are equivalent to 600yen and 300yen respectively which can be easily overcome by efficient new entry firm with new technologies.
Router market's network externalities are not significant sometimes. Although switching costs are larger than network externalities, it is easily overcome by technological innovations.
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