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The Fetters of the Sib: Weber Meets Darwin

  • Alger, Ingela


    (Carleton University)

  • Weibull, Jörgen


    (Dept. of Economics, Stockholm School of Economics)

We analyze the effects of family ties on the incentives for productive effort. A family is modelled as a pair of altruistic siblings. Each sibling exerts effort to produce output under uncertainty and siblings may transfer output to each other. We show that altruism has a non-monotonic effect on effort. We study how this effect depends on "climate," the magnitude and volatility of returns to effort. We also analyze the evolutionary robustness of family ties and how this robustness depends on climate. We find that family ties will be stronger in milder climates than in harsher climates.

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Paper provided by Stockholm School of Economics in its series SSE/EFI Working Paper Series in Economics and Finance with number 682.

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Length: 41 pages
Date of creation: 13 Nov 2007
Date of revision:
Handle: RePEc:hhs:hastef:0682
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