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2003 Fiscal Year Final Research Report Summary

Theoretical Investigation on R&D Investment and Oligopolistic Models with Spillovers

Research Project

Project/Area Number 14530011
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 経済理論
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

HARUNA Shoji  Okayama University, Economics, Professor, 経済学部, 教授 (30136775)

Project Period (FY) 2002 – 2003
KeywordsR&D investment / Spillover / Cournot oligopoly model / Bertrand Oligopoly model / Catel / Optimal trade policy / Two-stage game model
Research Abstract

1. Whether or not the government with export firms employs export subsidies as trade policy depends on both levels of R&D spillover and the relative cost of R&D investment. For example, when either the relative cost is high or it is not so high and the spillover level is relatively large, the otimal trade policy is laisser-faaire or export tax : namely, the possibility depends on both levels. Export subsidies cause the promotion of export and R&D investment to increase.
the strategic model with R&D investment in the presence of its spillover as well as for the nonstrategic model. Moreover, although whether or not firms under Cournot-quantity competition use RED investment strategically depends on the level of spillover, the incentive for firms under Bertrand-price competition to use R&D is small.
3. Whether firms disclose their results created by R&D depends on the sign of the cross price effect in terms of a demand function, irrespective of whether the firms are involved in quantity or price competition in the market. Moreover, the formation of an R&D cartel of oligopolistic firms will increase both R&D expenditure and profits. When products are substitutes, firms under quantity competition will obtain more in the presence of R&D cooperation than in the absence of it.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Haruna, Shoji: "Cooperative and Noncooperative R&D in Cournot and Bertrand Duopolles with Spillovers, and Their Comparison"岡山大学経済学会雑誌. 34. 1-18 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Haruna, Shoji: "Trade Policy under a Duopoly and R&D with Spillovers"国際経済. 投稿第8号. 3-20 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Haruna, Shoji: "Disclosure Policy, and Competition and Cartelization In R&D : Cournot and Betrand Competition"岡山大学経済学会雑誌. 35. 1-25 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Haruna, Shoji: "Cooperative and Noncooperative R&D in Cournot and Bertrand Duopolies with Spillovers, and Their Comparison."Okayama Economic Review. 34. 1-18 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Haruna, Shoji: "Trade Policy under a Duopoly and R&D with Spillovers"The International Economy, Screening Series. No.8. 3-20 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Haruna, Shoji: "Disclosure Policy, and Competition and Cartelization in R&D : Cournot and Bertrand Competition."Okayama Economic Review. 35. 1-25 (2004)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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