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Study on Contests with Outside Opportunities

Research Project

Project/Area Number 19K01563
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07010:Economic theory-related
Research InstitutionMeijo University

Principal Investigator

Tomohiko Kawamori  名城大学, 経済学部, 教授 (70550531)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Keywordsコンテスト / 外部機会 / contest success function / rent dissipation / 努力の最大化 / ゲーム理論
Outline of Research at the Start

コンテストにおいて敗者が外部機会から利益を得られる状況を定式化し,分析する.Tullock (1980)によって定式化されたコンテストでは,各利益団体はレントを獲得するため政府に働きかけを行い,働きかけ水準に比例した確率に従って勝者が選ばれる.本研究では,コンテストに外部機会を導入する.すなわち,敗者はコンテスト外の機会から利益を得られる状況を考える.外部機会からの利益の大きさが均衡での働きかけ水準や社会厚生に与える影響を分析する.さらに,各利益団体が自身の外部機会からの利益を減少させることができる状況を考え,均衡において戦略的に外部機会からの利益を減少させる利益団体があるかを明らかにしたい.

Outline of Final Research Achievements

We formalized contests in which losers obtain a profit from an outside opportunity. Each interest group can reduce its profit from an outside opportunity before a contest starts. In such setting, we showed that in any equilibrium, no interest group reduces its profit from an outside opportunity. Relatedly to this research, we derived contest success functions (CSFs) such that in any equilibrium, complete rent dissipation (CRD) occurs. Here, a CSF is a function that assigns to each tuple of interest groups' activities a probability distribution of contest winner, and CRD is that the sum of interest groups' activities is equal to the maximum of interest groups' profits.

Academic Significance and Societal Importance of the Research Achievements

どの利益団体も外部機会からの利益を減少させることはないという結果は,特段興味深い結果ではない.CRDが起きるCSFの研究は,任意の均衡でCRDが起きるCSFを求めることに成功し,既存研究にはない知見を得ることができた.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (2 results)

All 2023

All Journal Article (2 results) (of which Peer Reviewed: 2 results)

  • [Journal Article] Complete-rent-dissipation contest design2023

    • Author(s)
      Tomohiko Kawamori
    • Journal Title

      Economics Letters

      Volume: 232 Pages: 111346-111346

    • DOI

      10.1016/j.econlet.2023.111346

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Complete rent dissipation in contest with power technologies2023

    • Author(s)
      Tomohiko Kawamori
    • Journal Title

      Operations Research Letters

      Volume: 51 Issue: 4 Pages: 453-455

    • DOI

      10.1016/j.orl.2023.06.009

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed

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Published: 2019-04-18   Modified: 2025-01-30  

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