Greater wealth inequality, less polygyny: rethinking the polygyny threshold model
| Autor: | Karen L. Kramer, Hillard Kaplan, Ray Uehara, Russell Greaves, Eckart Voland, Kai P. Willführ, Gregory Clark, Mark A. Caudell, Marsha Quinlan, Michael Gurven, Monique Borgerhoff Mulder, Ryan Schacht, Richard McElreath, Cody T. Ross, Caissa Revilla-Minaya, Patricia Draper, Kim Hill, Carmen Cortez, Samuel Bowles, Bruce Winterhalder, Barry S. Hewlett, Brooke A. Scelza, Thomas N. Headland, Robert J. Quinlan, John P. Ziker, Heidi Colleran, Bret Alexander Beheim, Frank W. Marlowe, Seung-Yun Oh, John Andrew Bunce, Mary K. Shenk, Janet D. Headland, Jeremy Koster, David A. Nolin |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Male Relative wealth Inequality Polygyny threshold model media_common.quotation_subject Population Biomedical Engineering Biophysics Bioengineering 010603 evolutionary biology 01 natural sciences Biochemistry Corrections marriage systems Biomaterials monogamy Economics Humans 0601 history and archaeology Marriage education Polygyny media_common education.field_of_study 060101 anthropology 1. No poverty behavioural ecology 06 humanities and the arts Models Theoretical evolutionary anthropology Evolutionary anthropology Mate choice Socioeconomic Factors Demographic economics Female Life Sciences–Mathematics interface wealth inequality Research Article polygyny Biotechnology |
| Zdroj: | Interface : Journal of the Royal Society BASE-Bielefeld Academic Search Engine Journal of the Royal Society Interface Ross, CT; Mulder, MB; Oh, SY; Bowles, S; Beheim, B; Bunce, J; et al.(2018). Greater wealth inequality, less polygyny: Rethinking the polygyny threshold model. Journal of the Royal Society Interface, 15(144). doi: 10.1098/rsif.2018.0035. UC Davis: Retrieved from: http://www.escholarship.org/uc/item/8hv986k2 |
| Popis: | © 2018 The Author(s) Published by the Royal Society. All rights reserved. Monogamy appears to have become the predominant human mating system with the emergence of highly unequal agricultural populations that replaced relatively egalitarian horticultural populations, challenging the conventional idea - based on the polygyny threshold model - that polygyny should be positively associated with wealth inequality. To address this polygyny paradox, we generalize the standard polygyny threshold model to a mutual mate choice model predicting the fraction of women married polygynously. We then demonstrate two conditions that are jointly sufficient to make monogamy the predominant marriage form, even in highly unequal societies. We assess if these conditions are satisfied using individual-level data from 29 human populations. Our analysis shows that with the shift to stratified agricultural economies: (i) the population frequency of relatively poor individuals increased, increasing wealth inequality, but decreasing the frequency of individuals with sufficient wealth to secure polygynous marriage, and (ii) diminishing marginal fitness returns to additional wives prevent extremely wealthy men from obtaining as many wives as their relative wealth would otherwise predict. These conditions jointly lead to a high population-level frequency of monogamy. |
| Databáze: | OpenAIRE |
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