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Kinship, Incentives and Evolution – revised version: Kinship, Incentives, and Evolution

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Abstract

We analyze how family ties affect incentives, with focus on the strategic interaction between two mutually altruistic siblings. The siblings exert effort to produce output under uncertainty, and they may transfer output to each other. With equally altruistic siblings, their equilibrium effort is nonmonotonic in the common degree of altruism, and it depends on the harshness of the environment. We define a notion of local evolutionary stability of degrees of sibling altruism and show that this degree is lower than the kinship-relatedness factor. Numerical simulations show how family ties vary with the environment, and how this affects economic outcomes.

Suggested Citation

  • Ingela Alger & Jörgen W. Weibul, 2007. "Kinship, Incentives and Evolution – revised version: Kinship, Incentives, and Evolution," Carleton Economic Papers 07-13, Carleton University, Department of Economics, revised 17 Sep 2010.
  • Handle: RePEc:car:carecp:07-13
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    1. Eugene A. Hammel & Hans-Peter Kohler, 2001. "On the role of families and kinship networks in pre-industrial agricultural societies: An analysis of the 1698 Slavonian census," Journal of Population Economics, Springer;European Society for Population Economics, vol. 14(1), pages 21-49.
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    3. Ana Fernandes, 2011. "Altruism, labor supply and redistributive neutrality," Journal of Population Economics, Springer;European Society for Population Economics, vol. 24(4), pages 1443-1469, October.
    4. Cox, Donald & Hansen, Bruce E. & Jimenez, Emmanuel, 2004. "How responsive are private transfers to income? Evidence from a laissez-faire economy," Journal of Public Economics, Elsevier, vol. 88(9-10), pages 2193-2219, August.
    5. Assar Lindbeck & Sten Nyberg, 2006. "Raising Children to Work Hard: Altruism, Work Norms, and Social Insurance," The Quarterly Journal of Economics, Oxford University Press, vol. 121(4), pages 1473-1503.
    6. Alger, Ingela & Weibull, Jörgen, 2007. "Family ties, incentives and development: a model of coerced altruism," SSE/EFI Working Paper Series in Economics and Finance 681, Stockholm School of Economics.
    7. Cox, Donald & Fafchamps, Marcel, 2008. "Extended Family and Kinship Networks: Economic Insights and Evolutionary Directions," Handbook of Development Economics, Elsevier.
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    13. Maitra, Pushkar & Ray, Ranjan, 2003. "The effect of transfers on household expenditure patterns and poverty in South Africa," Journal of Development Economics, Elsevier, vol. 71(1), pages 23-49, June.
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    17. repec:dau:papers:123456789/4571 is not listed on IDEAS
    18. Donald Cox & Emanuela Galasso & Emmauel Jiminez, 2006. "Private Transfers in a Cross Section of Developing Countries," Working Papers, Center for Retirement Research at Boston College wp2006-1, Center for Retirement Research, revised Jan 2006.
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    More about this item

    JEL classification:

    • D13 - Microeconomics - - Household Behavior - - - Household Production and Intrahouse Allocation
    • D64 - Microeconomics - - Welfare Economics - - - Altruism; Philanthropy; Intergenerational Transfers
    • J12 - Labor and Demographic Economics - - Demographic Economics - - - Marriage; Marital Dissolution; Family Structure

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