Skip to main content

Advertisement

Log in

Stability and Change in In-Group Mate Preferences among Young People in Ethiopia Are Predicted by Food Security and Gender Attitudes, but Not by Expected Pathogen Exposures

  • Published:
Human Nature Aims and scope Submit manuscript

Abstract

There is broad anthropological interest in understanding how people define “insiders” and “outsiders” and how this shapes their attitudes and behaviors toward others. As such, a suite of hypotheses has been proposed to account for the varying degrees of in-group preference between individuals and societies. We test three hypotheses related to material insecurity, pathogen stress, and views of gender equality among cross-sectional (n = 1896) and longitudinal (n = 1002) samples of young people in Ethiopia (aged 13–17 years at baseline) to explore stability and change in their preferences for coethnic spouses. We show that food insecurity is associated with a greater likelihood of intolerant mate preferences. We also find that young people who hold more gender equitable attitudes tended to hold more tolerant mate preferences. Finally, we find no support for the hypothesis that expected pathogen exposure is associated with intolerant mate preferences. Our results most strongly support a material insecurity hypothesis of in-group bias, which assumes that uncertainty over meeting basic needs leads people to favor those in their in-group. As such, our findings join a small but growing group of studies that highlight the importance of material insecurity for understanding tolerance, xenophobia, in-group bias, and favoritism.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Bogardus, E. S. (1925). Measuring social distance. Journal of Applied Sociology, 9(2), 299–308.

    Google Scholar 

  • Bowles, S., & Gintis, H. (2004). The evolution of strong reciprocity: cooperation in heterogeneous populations. Theoretical Population Biology, 65(1), 17–28.

    Article  Google Scholar 

  • Cashdan, E. (2001). Ethnocentrism and xenophobia: a cross-cultural study. Current Anthropology, 42(5), 760–764.

  • Cashdan, E., & Steele, M. (2013). Pathogen prevalence, group bias, and collectivism in the standard cross-cultural sample. Human Nature, 24(1), 59–75.

    Article  Google Scholar 

  • Choi, J. K., & Bowles, S. (2007). The coevolution of parochial altruism and war. Science, 318(5850), 636–640.

    Article  Google Scholar 

  • Currie, T. E., & Mace, R. (2012). Analyses do not support the parasite-stress theory of human sociality. Behavioral and Brain Sciences, 35(2), 83–85.

    Article  Google Scholar 

  • Faulkner, J., Schaller, M., Park, J. H., & Duncan, L. A. (2004). Evolved disease-avoidance mechanisms and contemporary xenophobic attitudes. Group Processes & Intergroup Relations, 7(4), 333–353.

    Article  Google Scholar 

  • Fincher, C. L., & Thornhill, R. (2012). The parasite-stress theory may be a general theory of culture and sociality. The Behavioral and Brain Sciences, 35(2), 99–119.

    Article  Google Scholar 

  • Fortin, J. (2016). Lethal government force brings Ethiopian region to fearful standstill. New York Times. Accessed online at https://www.nytimes.com/2016/06/17/world/africa/lethal-government-force-ethiopian-region.html.

  • Gigerenzer, G. (1998). Surrogates for theories. Theory and Psychology, 8(2), 195–204.

    Article  Google Scholar 

  • Goode, W. J. (1963). World revolution and family patterns. New York: Free Press.

    Google Scholar 

  • Hackman, J., & Hruschka, D. (2013). Fast life histories, not pathogens, account for state-level variation in homicide, child maltreatment, and family ties in the US. Evolution and Human Behavior, 34(2), 118–124.

    Article  Google Scholar 

  • Hadley, C., & Crooks, D. L. (2012). Coping and the biosocial consequences of food insecurity in the 21st century. American Journal of Physical Anthropology, 149(Suppl 55), 72–94.

    Article  Google Scholar 

  • Hadley, C., Hadley, C., Lindstrom, D., Tessema, F., & Belachew, T. (2008). Gender bias in the food insecurity experience of Ethiopian adolescents. Social Science & Medicine, 66(2), 427–438.

    Article  Google Scholar 

  • Hammond, R. A., & Axelrod, R. (2006). The evolution of ethnocentrism. Journal of Conflict Resolution, 50(6), 926–936.

    Article  Google Scholar 

  • Hirsch, J. S., & Wardlow, H. (2006). Modern loves: The anthropology of romantic courtship and companionate marriage. Ann Arbor: University of Michigan Press.

  • Hruschka, D. J. (2010). Friendship: Development, ecology, and evolution of a relationship. Berkeley: University of California Press.

    Book  Google Scholar 

  • Hruschka, D. J., & Hackman, J. (2014). When are cross-group differences a product of a human behavioral immune system? Evolutionary Behavioral Sciences, 8(4), 265–273.

    Article  Google Scholar 

  • Hruschka, D. J., & Henrich, J. (2013a). Economic and evolutionary hypotheses for cross-population variation in parochialism. Frontiers in Human Neuroscience, 7, 559.

    Article  Google Scholar 

  • Hruschka, D. J., & Henrich, J. (2013b). Institutions, parasites and the persistence of in-group preferences. PloS One, 8(5), e63642.

    Article  Google Scholar 

  • Hruschka, D., Efferson, C., Jiang, T., Falletta-Cowden, A., Sigurdsson, S., McNamara, R., Sands, M., Munira, S., Slingerland, E., & Henrich, J. (2014). Impartial institutions, pathogen stress and the expanding social network. Human Nature, 25(4), 567–579.

    Article  Google Scholar 

  • Inglehart, R., Moaddel, M., & Tessler, M. (2006). Xenophobia and in-group solidarity in Iraq: a natural experiment on the impact of insecurity. Perspectives on Politics, 4(03), 495–505.

  • LeVine, R. A., & Campbell, D. T. (1972). Ethnocentrism: Theories of conflict, ethnic attitudes, and group behavior. New York: John Wiley and Sons.

  • Lindstrom, D. (2015). JLFSY overview. Available online at https://www.brown.edu/research/projects/jimma-longitudinal-family-survey-of-youth/population-surveys/jimma-longitudinal-family-survey-youth.

  • Lindstrom, D., Kiros, G.-E., & Hogan, D. P. (2009). Transition into first intercourse, marriage, and childbearing among Ethiopian women. Genus, 65(2), 45–77.

    Google Scholar 

  • Makhanova, A., Miller, S. L., & Maner, J. K. (2015). Germs and the out-group: Chronic and situational disease concerns affect intergroup categorization. Evolutionary Behavioral Sciences, 9(1), 8–19.

    Article  Google Scholar 

  • McNamara, R. A., Norenzayan, A., & Henrich, J. (2016). Supernatural punishment, in-group biases, and material insecurity: Experiments and Ethnography from Yasawa, Fiji. Religion, Brain & Behavior, 6(1), 34–55.

    Article  Google Scholar 

  • Mikulincer, M., & Shaver, P. R. (2001). Attachment theory and intergroup bias: evidence that priming the secure base schema attenuates negative reactions to out-groups. Journal of Personality and Social Psychology, 81(1), 97–115.

    Article  Google Scholar 

  • Murray, D. R., & Schaller, M. (2015). The behavioral immune system: implications for social cognition, social interaction, and social influence. Advances in Experimental Social Psychology, 53, 75–129.

    Article  Google Scholar 

  • Navarrete, C. D., & Fessler, D. M. T. (2006). Disease avoidance and ethnocentrism: the effects of disease vulnerability and disgust sensitivity on intergroup attitudes. Evolution and Human Behavior, 27(4), 270–282.

    Article  Google Scholar 

  • Pisor, A. C., & Gurven, M. (2016). Risk buffering and resource access shape valuation of out-group strangers. Scientific Reports, 6, 30435.

    Article  Google Scholar 

  • Ross, C. T., & Winterhalder, B. (2016). A hierarchical bayesian analysis of parasite prevalence and sociocultural outcomes: the role of structural racism and sanitation infrastructure. American Journal of Human Biology, 28(1), 74–89.

    Article  Google Scholar 

Download references

Acknowledgments

DJH acknowledges support from the National Science Foundation grant BCS-1150813, jointly funded by the Programs in Cultural Anthropology, Social Psychology Program and Decision, Risk, and Management Sciences. We would like to thank Elizabeth Cashdan and Rob Quinlan and anonymous reviewers for help improving the manuscript.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Craig Hadley.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Hadley, C., Hruschka, D. Stability and Change in In-Group Mate Preferences among Young People in Ethiopia Are Predicted by Food Security and Gender Attitudes, but Not by Expected Pathogen Exposures. Hum Nat 28, 395–406 (2017). https://doi.org/10.1007/s12110-017-9301-3

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12110-017-9301-3

Keywords

Navigation