Pathogen Prevalence, Group Bias, and Collectivism in the Standard Cross-Cultural Sample
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It has been argued that people in areas with high pathogen loads will be more likely to avoid outsiders, to be biased in favor of in-groups, and to hold collectivist and conformist values. Cross-national studies have supported these predictions. In this paper we provide new pathogen codes for the 186 cultures of the Standard Cross-Cultural Sample and use them, together with existing pathogen and ethnographic data, to try to replicate these cross-national findings. In support of the theory, we found that cultures in high pathogen areas were more likely to socialize children toward collectivist values (obedience rather than self-reliance). There was some evidence that pathogens were associated with reduced adult dispersal. However, we found no evidence of an association between pathogens and our measures of group bias (in-group loyalty and xenophobia) or intergroup contact.
KeywordsInfectious disease Historical pathogen prevalence In-group bias Collectivism Cross-cultural analysis
Our greatest debt is to Damian Murray, for training us in the use of the pathogen sources he used for his cross-national historical pathogen codes. We thank him and Mark Schaller for their encouragement with the project and help with the literature. We are grateful to Bobbi Low for both her own insightful work and her consistent encouragement of our own efforts. We also thank Ryan Bohlander for his exploratory data analysis and persistence in the face of negative results, and Carol Ember and our anonymous reviewers for very helpful suggestions.
- Barth, F. (1969). Ethnic groups and boundaries: The social organization of culture difference. Boston: Waveland Press.Google Scholar
- Binford, L. (2001). Constructing frames of reference: An analytical method for archaeological theory building using ethnographic and environmental data sets. Berkeley: University of California Press.Google Scholar
- Faust, E., & Russell, P. (1964). Craig and Faust’s clinical parasitology. Philadelphia: Lea and Febiger.Google Scholar
- Fincher, C., & Thornhill, R. (2012). Parasite-stress promotes in-group assortative sociality: the cases of strong family ties and heightened religiosity. The Behavioral and Brain Sciences, 35(2), 39–59. doi: 10.1017/S0140525X11001774.
- Low, B. (1990). Marriage systems and pathogen stress in human societies. American Zoologist, 30(2), 325–340.Google Scholar
- Low, B. S. (1994). Pathogen intensity cross-culturally: SCCS. World Cultures, 8(2).Google Scholar
- Rodenwaldt, E., & Bader, R. E. (1961). World-atlas of epidemic diseases (1952–1961). Hamburg: Falk-Verlag.Google Scholar
- SAS Institute (2012). Base SAS(R) 9.3 procedures guide: Statistical procedures. SAS Institute.Google Scholar
- Schaller, M., & Duncan, L. (2007). The behavioral immune system: Its evolution and social psychological implications. In J. P. Forgas, M. G. Haselton, & W. von Hippell (Eds.), Evolution and the social mind: Evolutionary psychology and social cognition (pp. 293–307). New York: Psychology Press.Google Scholar
- Schaller, M., & Murray, D. (2010). Infectious diseases and the evolution of cross-cultural differences. In M. Schaller (Ed.), Evolution, culture, and the human mind (pp. 243–256). New York: Psychology Press.Google Scholar
- Shipley, B. (2002). Cause and correlation in Biology: A user’s guide to path analysis, structural equations and causal inference. Cambridge University Press.Google Scholar
- Simmons, J. S., Whayne, T. F., Anderson, G. W., & Horack, H. M. (1944). Global epidemiology: A geography of disease and sanitation. Philadelphia: J. B. Lippincott.Google Scholar
- Thornhill, R., Fincher, C., Murray, D., & Schaller, M. (2010). Zoonotic and non-zoonotic diseases in relation to human personality and societal values: support for the parasite-stress model. Evolutionary Psychology, 8(2), 151–169.Google Scholar
- Whiting, J. W. M. (1989). Climate data from weather stations. World Cultures, 1(1), 179–199.Google Scholar