Behavioral Bio & Cultural Evolution

2018 Sep 27

HEB Colloquium: "Third Party Monitoring and the Evolution of Reciprocity"

4:00pm to 5:00pm


Haller Hall, Geological Museum Room 102, 24 Oxford Street, Cambridge, MA

Professor Robert Boyd

Professor, School of Human Evolution and Social Change, Arizona State University


Cooperation based on reciprocity is undermined by perception errors, mistakes that cause interacting individuals to disagree about past behavior. Strategies like Win-Stay-Lose-Shift (WSLS) and Generous Tit for Tat (GTFT) can reestablish cooperation following a perception error but only when errors arise infrequently. Here I introduce a strategy that relies on third-party arbitration to resolve disagreements, and show that...

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Tiffany Hwang

Tiffany Hwang

Culture, Cognition, & Coevolution Lab Manager
My research interests for future graduate study are the evolutionary underpinnings of status and prestige. In 2018, I earned a B.A. in Psychology ... Read more about Tiffany Hwang
Joseph Henrich Headshot

Dr. Joseph Henrich

Chair, Department of Human Evolutionary Biology
Professor of Human Evolutionary Biology

Joseph Henrich's research focuses on evolutionary approaches to psychology, decision-making and culture, and includes...

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Office Location:
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