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Genes, Legitimacy and Hypergamy: Another Look at the Economics of Marriage

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  • Saint-Paul, Gilles

Abstract

In order to credibly "sell" legitimate children to their spouse, women must forego more attractive mating opportunities. This paper derives the implications of this observation for the pattern of matching in marriage markets, the dynamics of human capital accumulation, and the evolution of the gene pool. A key consequence of the trade-off faced by women is that marriage markets will naturally tend to be hypergamous - that is, a marriage is more likely to be beneficial to both parties relative to remaining single, the greater the man’s human capital, and the lower the woman’s human capital. As a consequence, it is shown that the equilibrium can only be of two types. In the "Victorian" type, all agents marry somebody of the same rank in the distribution of income. In the "Sex and the City" (SATC) type, women marry men who are better ranked than themselves. There is a mass of unmarried men at the bottom of the distribution of human capital, and a mass of single women at the top of that distribution. It is shown that the economy switches from a Victorian to an SATC equilibrium as inequality goes up. The model sheds light on how marriage affects the returns to human capital for men and women. Absent marriage, these returns are larger for women than for men but the opposite may occur if marriage prevails. Finally, it is shown that the institution of marriage may or may not favour human capital accumulation depending on how genes affect one’s productivity at accumulating human capital.

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Paper provided by Institut d'Économie Industrielle (IDEI), Toulouse in its series IDEI Working Papers with number 509.

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Date of creation: May 2008
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Handle: RePEc:ide:wpaper:9118

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  1. Galor, Oded & Zeira, Joseph, 1993. "Income Distribution and Macroeconomics," Review of Economic Studies, Wiley Blackwell, vol. 60(1), pages 35-52, January.
  2. Burdett, Ken & Coles, Melvyn G, 1997. "Marriage and Class," The Quarterly Journal of Economics, MIT Press, vol. 112(1), pages 141-68, February.
  3. Lena Edlund, 2005. "Sex and the City," Scandinavian Journal of Economics, Wiley Blackwell, vol. 107(1), pages 25-44, 03.
  4. Kremer, Michael, 1993. "The O-Ring Theory of Economic Development," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 551-75, August.
  5. Lena Edlund & Evelyn Korn, 2002. "A Theory of Prostitution," Journal of Political Economy, University of Chicago Press, vol. 110(1), pages 181-214, February.
  6. Becker, Gary S, 1973. "A Theory of Marriage: Part I," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 813-46, July-Aug..
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  1. Victoria, Sex and the City and why women get married
    by Economic Logician in Economic Logic on 2008-10-22 10:34:00

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  1. > Demographic Economics > The Economics of Polygamy
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Cited by:
  1. Fujii, Tomoki, 2014. "Dynamic Poverty Decomposition Analysis: An Application to the Philippines," ADBI Working Papers 466, Asian Development Bank Institute.
  2. Dirk Bethmann & Michael Kvasnicka, 2011. "The institution of marriage," Journal of Population Economics, Springer, vol. 24(3), pages 1005-1032, July.
  3. Belot, Michèle & Fidrmuc, Jan, 2009. "Anthropometry of Love: Height and Gender Asymmetries in Interethnic Marriages," CEPR Discussion Papers 7146, C.E.P.R. Discussion Papers.
  4. Marco Francesconi & Christian Ghiglino & Motty Perry, 2010. "On the Origin of the Family," Economics Discussion Papers 682, University of Essex, Department of Economics.
  5. Brishti Guha, 2012. "Grandparents as Guards: A Game Theoretic Analysis of Inheritance and Post Marital Residence in a World of Uncertain Paternity," Working Papers 37-2012, Singapore Management University, School of Economics.

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