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Theoretical and empirical study on societal differences in adaptive strategies for building trusting relationships

Research Project

Project/Area Number 18K03011
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 10010:Social psychology-related
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

MASHIMA Rie  北海道医療大学, 心理科学部, 講師 (30509162)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords信頼 / 協力 / 機会コスト / 進化 / 信頼回復 / 社会差
Outline of Final Research Achievements

The relationship between behavioral strategies and opportunity cost in relationship formation and maintenance was examined. The results revealed that people in high opportunity cost environments tended to invest more resources not only in relationship formation but also in relationship maintenance than those in low opportunity cost environments, suggesting that behavioral strategies acquired by people in low opportunity cost environments may be acquired in a different way from interpersonal skills. In addition, it was shown that cooperative behavior and demonstration of ability and diligence are effective behavioral strategies for regaining trust and forming and maintaining relationships in situations where one person has lost the trust of others.

Academic Significance and Societal Importance of the Research Achievements

対人関係の関係形成・維持場面における行動方略と,機会コスト(現在身を置いている関係の外部に,どの程度より良い関係が存在するか)の関係について検討を行った。その結果,機会コストの小さい(既存の関係に留まり続けることのコストが小さい)環境に身を置く人々に比べ,機会コストの大きい(既存の関係に留まり続けることのコストが大きい)環境に身を置く人々の方が,関係形成のみならず関係維持にも資源を投資する傾向があることが明らかとなり,機会コストの小さい環境に身を置く人々が獲得している行動方略が,見極め能力などの対人スキルとは別の形で獲得されている可能性が示唆された。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2021 2020 2019

All Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] What types of behaviors do people spread to others in indirect reciprocity?: Vignette study to examine the pattern of transmission of information in situations of indirect reciprocity.2021

    • Author(s)
      Rie Mashima & Nobuyuki Takahashi
    • Organizer
      32nd International Congress of Psychology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 間接互恵性状況における情報伝達バイアスの検討2021

    • Author(s)
      真島理恵・川村樹・岡本悠衣・高橋 伸幸
    • Organizer
      日本グループ・ダイナミックス学会第67回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 感染者を攻撃するのは誰か?-感染予防規範逸脱者に対する認知・行動の規定因の検討-2020

    • Author(s)
      真島理恵・木村多聞
    • Organizer
      第13回日本人間行動進化学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] The effect of opportunity cost on strategies to maintain long-lasting relationships.2019

    • Author(s)
      Rie Mashima & Nobuyuki Takahashi
    • Organizer
      The 18th International Conference on Social Dilemmas
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 長期的関係への投資行動と機会コストの関係の検討2019

    • Author(s)
      真島理恵・高橋伸幸
    • Organizer
      日本社会心理学会第60回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 長期的関係維持行動に対する機会コストの効果2019

    • Author(s)
      真島理恵・高橋伸幸
    • Organizer
      第12回人間行動進化学会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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