廠商共同研發與技術外溢效果之研究

The Study of Firms' R&D Consortia and Technology Spillover Effect

李陳國(Chen-Kuo Lee) ； 林忠明(Chung-Ming Lin)

《建國科大學報》 26卷2期 (2007/01) Pp. 19-41

https://doi.org/10.6995/JCTU.200701.0019

摘要

本文對廠商共同研發行為進行數理模型分析，這項研究源於學者們對技術外溢效應導致的技術創新市場失效問題的思考。共同研發能夠將技術外溢的外部效應內部化，激勵企業進行研究開發，從而有利於社會福利。研究採用了賽局理論方法，建立兩階段雙頭寡賽局模型，在第一階段（研發階段），兩廠商進行研究開發投資（或者合作，或者非合作）以降低產品成本，研究開發過程中存在技術外溢；第二階段（產出階段），兩廠商在給定第一階段研發投資的情況下，在產品市場上進行古諾(Cournot)競爭，選擇產量使自己的利潤最大化，同時證明了共同研發相對於自主創新具有更高的創新績效。

關鍵字

共同研發 ； 外溢效果 ； 賽局理論

並列摘要

It is creative that we construct mathematical models to analyze firms' R&D consortia behaviors. Model research is derived from academic discussion on technological innovation market failure due to technology spillovers. R&D consortia could internalize the externality resulted from spillovers and give firms incentives to engage in research and development. Accordingly, it is beneficial to social welfare. Game theory is used in research. R&D consortia is modeled as a two-stage duopoly game process: in the first stage (R&D stage), the two firms spend in R&D, either cooperatively or not, inorder to reduce unit cost. Technology spillovers exist in R&D process. While in the second stage (output stage), they engage in cournot quantitiescompetition on the products market, taking into account the R&D spending in the first stage and choosing the right output to maximize their own profit. Through diverse game models, it is proof that R&D consortia has higher performance than independent R&D.

並列關鍵字

R&D Consortia ； Spillover Effect ； Game Theory