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Abuse of Bargaining Power in the Contractual Process: Regulation by Private Law

Research Project

Project/Area Number 15530069
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil law
Research InstitutionHokkaido University (2004-2006)
Kyushu University (2003)

Principal Investigator

SONO Hiroo  Hokkaido University, Graduate School of Law, Professor, 大学院法学研究科, 教授 (60272936)

Project Period (FY) 2003 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
KeywordsContractual Process / Abuse of Bargaining Power / Abuse of Dominant Position / Competition / Private Ordering / UCC / CISG / UNIDROIT Principles / 交渉力の濫用 / 民事規制 / 行政規制
Research Abstract

Abuse of bargaining power in the contractual process is abundant. The purpose of this project was to pursue a private law theory in regulating such abuse. The project was conducted on the following three fronts:
1.Disjunctions and Conjunctions of Private Law and Administrative Regulations
Abuse of bargaining power has traditionally been considered to be within the realm of administrative regulations under Japanese law: it has been regulated by the Antimonopoly Law as an unfair trade practice, and enforced by the Fair Trade Commission. Private law, although analysis has been scant, may also play a role in effective regulation of such abuse. This project attempted to fill in the vacuum by studying how and why such private law rules have emerged in the common law tradition. Preliminary focus has been placed on the development of the "pre-existing duty rule".
2.The Tension between Private Ordering and Law
Abuse of bargaining power occurs in the context of private ordering. The general question therefore is when and how the state is allowed to intervene. This project conducted a preliminary study to answer this conundrum. It has profited from recent studies on private ordering and social norms.
3.Comparative and Legal Analysis
To examine the problem in a concrete dispute setting three separate researches have been conducted: (1)Protection of copyright licensees against third parties and/or bankruptcy trustees; (2)the impact of available remedies on the opportunistic behaviors of sellers/buyers in case of non-conformity; and (3)the prevention of expiration of legal limitation periods while disputing parties are resorting to alternative dispute resolution.

Report

(5 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (44 results)

All 2007 2006 2005 2004 Other

All Journal Article (39 results) Book (2 results) Publications (3 results)

  • [Journal Article] 売買目的物に瑕疵がある場合の買主の救済 : 国際的動向2007

    • Author(s)
      曽野裕夫
    • Journal Title

      比較法研究 68号(近刊予定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Buyer's Remedies for Delivery of Non-Conforming Goods : International Developments2007

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Comparative Law Journal No.68(to be published)

    • NAID

      40015623356

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 売買目的物に瑕疵がある場合の買主の救済:国際的動向2007

    • Author(s)
      曽野裕夫
    • Journal Title

      比較法研究 68号(近刊予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] CISG-AC意見第4号『製作又は製造される物品の売買契約および混合契約(CISG第3条)』2006

    • Author(s)
      曽野裕夫, 吉川吉樹【訳】
    • Journal Title

      民商法雑誌 135巻1号(近刊予定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] 規範の私的形成と国家法の役割 : 藤田報告へのコメント2006

    • Author(s)
      曽野裕夫
    • Journal Title

      ソフトロー研究 第6号(近刊予定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 商人による私的秩序形成と国家法の役割2006

    • Author(s)
      曽野裕夫
    • Journal Title

      国際契約ルールの誕生(絹巻康史・齋藤彰【編】)(同文館出版) (近刊予定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] CISG-AC意見第3号『口頭証拠排除則、明白な意味の原則、完結条項とCISG』2006

    • Author(s)
      曽野裕夫, 牧佐智代【訳】
    • Journal Title

      民商法雑誌 134巻3号

      Pages: 509-524

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] CISG-AC意見第2号『物品の検査と不適合の通知-第38条および第39条-』2006

    • Author(s)
      曽野裕夫【訳】
    • Journal Title

      民商法雑誌 134巻2号

      Pages: 299-327

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] CISG-AC意見第1号『CISGの下における電子的通信』2006

    • Author(s)
      曽野裕夫【訳】
    • Journal Title

      民商法雑誌 134巻1号

      Pages: 107-131

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] CISG-AC Opinion no 4, Contracts for the Sale of Goods to Be Manufactured or Produced am Mixed Contracts (Article 3 CISG)2006

    • Author(s)
      SONO, Hiroo, YOSHIKAWA, Yoshiki (trans.)
    • Journal Title

      Minshoho-zasshi Vol.135, No.1(to be published)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Spontaneous Orders and the Role of Law : Comments on Tomotaka Fujita's 'Enforcing Spontaneous Orders'2006

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Soft Law Journal No.6(to be published)

    • NAID

      40016181696

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Private Ordering by Merchants and the Role of Law2006

    • Author(s)
      SONO, Hiroo
    • Journal Title

      The Birth of International Contract Rules (KINUMAKI, Yasushi & SAITO, Akira (eds.)) (Dobunkan-Shuppan)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Sachiyo (trans.), CISG-AC Opinion no 3, Parol Evidence Rule, Plain Meaning Rule, Contractual Merger Clause and the CISG2006

    • Author(s)
      SONO, Hiroo, MAKI
    • Journal Title

      Minshoho-zasshi Vol.134, No.3

      Pages: 509-524

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] CISG-AC Opinion no 2, Examination of the Goods and Notice of Non-Conformity : Articles 38 and 392006

    • Author(s)
      SONO, Hiroo (trans.)
    • Journal Title

      Minshoho-zasshi Vol.134, No.2

      Pages: 299-327

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] CISG-AC Opinion no 1, Electronic Communications under CISG2006

    • Author(s)
      SONO, Hiroo (trans.)
    • Journal Title

      Minshoho-zasshi Vol.134, No.1

      Pages: 107-131

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 規範の私的形成と国家法の役割:藤田報告へのコメント2006

    • Author(s)
      曽野裕夫
    • Journal Title

      ソフトロー研究 第6号(近刊予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 商人による私的秩序形成と国家法の役割2006

    • Author(s)
      曽野裕夫
    • Journal Title

      国際契約ルールの誕生(絹巻康史・齋藤彰【訳】)(同文館出版) (近刊予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] CISG-AC意見第2号『物品の検査と不適合の通知-第38条およ第39条-』2006

    • Author(s)
      曽野裕夫【訳】
    • Journal Title

      民商法雑誌 134巻2号

      Pages: 299-327

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 商人による私的秩序形成と国家法の役割2006

    • Author(s)
      曽野裕夫
    • Journal Title

      グローバル商取引契約(1)-国際契約ルールの誕生(絹巻康史・齋藤彰編)(同文館出版) (近刊予定)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] <資料>CISG-AC意見第3号「口頭証拠排除則、明白な意味の原則、完結条項とCISG」2006

    • Author(s)
      曽野裕夫, 牧佐智代(訳)
    • Journal Title

      民商法雑誌 134巻3号(近刊予定)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 著作権ライセンス契約におけるライセンシーの地位の保護のあり方2005

    • Author(s)
      曽野裕夫
    • Journal Title

      知的財産法政策学研究 9号

      Pages: 135-168

    • NAID

      120002277589

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] 競争秩序の実現における私法の論理-交渉力濫用規制を素材として-2005

    • Author(s)
      曽野裕夫
    • Journal Title

      北大法学論集 56巻1号

      Pages: 264-276

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] 契約解除の要件・効果2005

    • Author(s)
      曽野裕夫
    • Journal Title

      民事法III債権各論(鎌田薫ほか【編】)(日本評論社)

      Pages: 76-89

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] コメント 民法学の立場から2005

    • Author(s)
      曽野裕夫
    • Journal Title

      名城法学 54巻3号

      Pages: 218-222

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Protection of Copyright Licensee's Interest against Third Parties and Cancellation by Bankruptcy Trustees2005

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Intellectual Property Law and Policy Journal Vol.9

      Pages: 135-168

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The Logic of Private Law in Ordering Competition : The Case of Abuse of Bargaining Power2005

    • Author(s)
      SONO, Hiroo
    • Journal Title

      The Hokkaido Law Review Vol.56,No.1

      Pages: 264-276

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Avoidance of Contracts2005

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Private Law III (KAMATA, Kaoru et al. (eds.)) ( Nippon-Hyoron-Sha)

      Pages: 76-89

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Comment : A Civil Law Perspective2005

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Meijo Law Review Vol.54, No.3

      Pages: 218-222

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 契約解除の要件・効果2005

    • Author(s)
      曽野裕夫
    • Journal Title

      民事法III債権各論(鎌田薫ほか編)(日本評論社)

      Pages: 76-89

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 私法の国際的統一を促進するインターネット情報-ウィーン売買条約 (CISG) の調べ方-2004

    • Author(s)
      曽野裕夫
    • Journal Title

      インターネット法情報ガイド(指宿信・米丸恒治【編】)(日本評論社)

      Pages: 243-253

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 契約と技術による著作権の拡張に関する日本法の状況-ギボー報告およびバーク報告に対するコメント-2004

    • Author(s)
      曽野裕夫
    • Journal Title

      知的財産法政策学研究 3号

      Pages: 185-194

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The Role of Internet in Facilitating Unification of Private Laws2004

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Law on the Internet (IBUSUKI, Makoto & YONEMARU, Tsuneharu (eds.)) (Nippon-Hyoron-Sha) p.243-253

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Dealing with Contractual and Technological Expansion of Copyright under Japanese Law2004

    • Author(s)
      SONO, Hiroo
    • Journal Title

      Intellectual Property Law and Policy Journal Vol.3

      Pages: 185-194

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] UNIDROIT Principles of International, Commercial Contracts2004

    • Author(s)
      SONO, Kazuaki, HIROSE, Hisakazu, UCHIDA, Takashi, SONO, Hiroo (trans.)
    • Journal Title

      Shojihoumu 305 pages

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 私法の国際的統一を促進するインターネット情報-ウィーン売買条約(CISG)の調べ方-2004

    • Author(s)
      曽野裕夫
    • Journal Title

      インターネット法情報ガイド(指宿信=米丸恒治編)(日本評論社)

      Pages: 243-253

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 契約と技術による著作権の拡張に関する日本法の状況2004

    • Author(s)
      曽野裕夫
    • Journal Title

      知的財産法政策学研究 3号

      Pages: 185-194

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 競争秩序の実現における私法の論理-交渉力濫用規制を素材として-

    • Author(s)
      曽野裕夫
    • Journal Title

      北大法学論集 56巻1号(近刊予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 契約解除の要件・効果

    • Author(s)
      曽野裕夫
    • Journal Title

      民事法II(鎌田薫ほか編)(日本評論社) (近刊予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 「コメント:民法学の立場から」(シンポジウム「中国法制史における『史料』と『現実』」)

    • Author(s)
      曽野裕夫
    • Journal Title

      名城法学 54巻3号(近刊予定)

    • Related Report
      2004 Annual Research Report
  • [Book] UNIDROIT国際商事契約原則2004

    • Author(s)
      曽野和明, 廣瀬久和, 内田貴, 曽野裕夫【訳】
    • Total Pages
      305
    • Publisher
      商事法務
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] UNIDROIT国際商事契約原則2004

    • Author(s)
      曽野和明, 廣瀬久和, 内田貴, 曽野裕夫
    • Publisher
      (株)商事法務
    • Related Report
      2004 Annual Research Report
  • [Publications] 曽野裕夫: "私法の国際的統一を促進するインターネット情報-または、ウィーン売買条約(CISG)の調べ方-"インターネット法情報ガイド(指宿信=米丸恒治編)(日本評論社). (近刊予定).

    • Related Report
      2003 Annual Research Report
  • [Publications] 曽野裕夫: "契約解除の要件・効果"民事法III債権各論(鎌田薫ほか編)(日本評論社). (近刊予定).

    • Related Report
      2003 Annual Research Report
  • [Publications] 曽野和明, 廣瀬久和, 内田貴, 曽野裕夫: "UNIDROIT国際商事契約原則"(株)商事法務(近刊予定). 307+vi

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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