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Strategic Choices in Polygamous Households: Theory and Evidence from Senegal

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  • Pauline Rossi

Abstract

This article proposes a strategic framework to account for fertility choices in polygamous households. It uses unique data on fertility histories of a representative sample of co-wives in Senegal to estimate a duration model of birth intervals with individual baseline hazards. Exploiting entries and exits of co-wives as well as gender of births, empirical tests show that children are strategic complements. One wife raises her fertility in response to an increase by the other wife, because children are the best claim to resources controlled by the husband. This result is the first quantitative evidence that the competition between co-wives drives fertility upwards. It suggests that polygamy undermines the fertility transition in Sub-Saharan Africa by incentivizing women to want many children. This article is also one of the few attempts to open the black box of non-nuclear families, placing strategic interactions at the heart of household decision-making.

Suggested Citation

  • Pauline Rossi, 2019. "Strategic Choices in Polygamous Households: Theory and Evidence from Senegal," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 86(3), pages 1332-1370.
    • Handle: RePEc:oup:restud:v:86:y:2019:i:3:p:1332-1370.
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    File URL: http://hdl.handle.net/10.1093/restud/rdy052
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    More about this item

    Keywords

    Fertility; Polygamy; Africa; Non-cooperative models; Duration models;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D13 - Microeconomics - - Household Behavior - - - Household Production and Intrahouse Allocation
    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • J16 - Labor and Demographic Economics - - Demographic Economics - - - Economics of Gender; Non-labor Discrimination
    • O15 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Economic Development: Human Resources; Human Development; Income Distribution; Migration
    • O55 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - Africa

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