投資を増やすことにより,協力関係の発展
1Evolution and Behaviour Research Group, Department of Psychology, University of Newcastle upon Tyne, UK. gilbert.roberts@ncl.ac.uk
Nature
|July 22, 1998
まとめ
協力は"利害を高める"戦略を用いた変数投資で繁栄することができます. このアプローチは,離散型モデルとは異なり,投資を徐々に増加させ,搾取を防止し,相互性を強化します.
科学分野:
- 進化論的なゲーム理論
- 行動経済学は,行動経済学である.
背景:
- 互恵的な利他主義は,互いに関係のない個体間で,互いに対する報復のような反応的な戦略によって生じることがあります.
- 囚人のジレンマのような伝統的なモデルは,離散的な選択 (協力/欠陥) を使用し,変数の協力レベルの研究を制限します.
研究 の 目的:
- 変動する投資水準で協力関係を維持する方法について調査する.
- 変数協力のための新しい戦略"利上げ"を導入し,分析する.
主な方法:
- 投資を漸進的に増やすことを可能にする"賭け引き上げ"と呼ばれる新しい戦略の開発.
- 非利他主義者の集団に侵入し,搾取に抵抗する戦略の能力の分析.
主要な成果:
- "利害を高める"戦略は,変動する投資にもかかわらず,協力が繁栄することを可能にします.
- この戦略は,非利他主義者の集団を成功裏に侵略することができ,搾取に抵抗します.
- "信仰の飛躍"ではなく,投資の漸進的な増加が相互性を安定させる.
結論:
- 協力における変動投資は持続可能であり,効果的に管理することができます.
- "利害の引き上げ"は,離散的な選択モデルよりも,協力の進化のためのより現実的なモデルを提供します.
- この戦略は,相互利他主義の安定性と有効性を高めます.
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