Roots of Human Sociality: Phase II
Research Team and Advisers at the California Institute of Technology, 2004
Roots of Human Sociality Phase II: Joint Publications and Manuscripts
Joseph Henrich, Jean Ensminger, Richard McElreath, Abigail Barr, Clark Barrett, Alexander Bolyanatz, Juan Camilo Cardenas, Michael Gurven, Edwins Gwako, Natalie Henrich, Carolyn Lesorogol, Frank Marlowe, David Tracer, and John Ziker
Markets, Religion, Community Size and the Evolution of Fairness and Punishment.
Science. March, 2010, 327: 1480-1484.
Joseph Henrich, Richard McElreath, Abigail Barr, Jean Ensminger, Clark Barrett, Alexander Bolyanatz, Juan Camilo Cardenas, Michael Gurven, Edwins Gwako, Natalie Henrich, Carolyn Lesorogol, Frank Marlowe, David Tracer, and John Ziker
Costly Punishment Across Human Societies.
Science. June, 2006, 312(23): 1767-1770.
Joseph Henrich and Jean Ensminger
Introduction, Project History, and Guide to the Volume (Chapter 1).
For publication in Experimenting with Social Norms: Fairness and Punishment in Cross-Cultural Perspective. Jean Ensminger and Joseph Henrich, eds. Submitted for publication to The Russell Sage Foundation.
Joseph Henrich and Jean Ensminger
Theoretical Foundations: The Coevolution of Social Norms, Intrinsic Motivation, Markets, and the Institutions of Complex Societies (Chapter 2).
For publication in Experimenting with Social Norms: Fairness and Punishment in Cross-Cultural Perspective. Jean Ensminger and Joseph Henrich, eds. Submitted for publication to The Russell Sage Foundation.
Jean Ensminger, Abigail Barr, and Joseph Henrich
Cross-Cultural Methods, Sites, and Variables (Chapter 3).
For publication in Experimenting with Social Norms: Fairness and Punishment in Cross-Cultural Perspective. Jean Ensminger and Joseph Henrich, eds. Submitted for publication to The Russell Sage Foundation.
Joseph Henrich, Jean Ensminger, Abigail Barr, and Richard McElreath
Major Empirical Results: Markets, Religion, Community Size and the Evolution of Fairness and Punishment (Chapter 4).
For publication in Experimenting with Social Norms: Fairness and Punishment in Cross-Cultural Perspective. Jean Ensminger and Joseph Henrich, eds. Submitted for publication to The Russell Sage Foundation.
Roots of Human Sociality Phase II: Map of the 15 Research Sites
Roots of Human Sociality Phase II: Researchers and Ethnographic Summary of Societies
| Researcher | Group | Nation/Region | Language | Environment | Economic Base | Residence |
|---|---|---|---|---|---|---|
| Abigail Barr | Accra City | Ghana | Mixed | Urban | Wage Work | Sedentary |
| David Tracer | Au | Papua New Guinea/Torricelli | Torricelli/Wapei | Mountainous Tropical Forest | Foraging/Horticulture | Sedentary |
| John Ziker | Dolgan/Nganasan | Russia/Siberia | Turkic/Samoyedic | Tundra-Taiga | Hunting/Fishing/Wages | Semi-sedentary |
| Edwins Laban Gwako | Gusii | Kenya | Ekegusii | Fertile High Plains | Mixed Farming/Wage Work | Sedentary |
| Frank Marlowe | Hadza | Tanzania | Khoisan/Isolate | Savanna-Woodlands | Foraging | Nomadic |
| Richard McElreath | Isanga | Tanzania | Bantu | Mountainous Forest | Agriculture/Wage work | Sedentary |
| Edwins Laban Gwako | Maragoli | Kenya | Logoli | Fertile Plains | Mixed Farming/Wage Work | Sedentary |
| Jean Ensminger | Orma | Kenya | Cushitic | Semi-arid Savanna | Pastoralism | Semi-nomadic |
| Carolyn Lesorogol | Samburu | Kenya | Nilotic | Semi-arid Savanna | Pastoralism | Semi-nomadic |
| Juan Camilo Cardenas | Sanquianga | Columbia/Pacific Coast | Spanish | Mangrove Forest | Fisheries (Fish/clams/shrimp) | Sedentary |
| Clark Barrett | Shuar | Ecuador/Amazonia | Jivaroan | Tropical Forest | Horticulture | Sedentary |
| Alexander Bolyanatz | Sursurunga | Papua New Guinea/New Ireland | Austronesian | Coastal Tropical Island | Horticulture | Sedentary |
| Michael Gurven | Tsimane | Bolivia/Amazonia | Macro-Panoan Isolate | Tropical Forest | Foraging/Horticulture | Semi-nomadic |
| Jean Ensminger | U.S., Rural Missouri | U.S./Rural Missouri | Germanic | Prairie | Wage Work | Sedentary |
| Joseph Henrich | Yasawans | Fiji/Yasawa Island | Austronesian | Coastal Tropical Island | Horticulture/Marine Foraging | Sedentary |
Roots of Human Sociality Phase II: Mean Dictator Game
Mean Dictator Game Offers for Each Population Plotted Against Mean Value of Market Integration (MI).
Error bars are bootstrapped standard errors (bca corrected) on the population mean.
Document Repository
Game Procedures and Protocols (DG, UG, TPP) [pdf]
Master Excel Data Entry File (coming soon)
NSF-Proposal [pdf]
Operationalization of Key Variables and Data Sheets [pdf]
Scripts--Core Games (DG, UG TPP) [pdf]
Script--Trust Game [pdf]
Social Network Analysis [pdf]