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Does Mother Nature Punish Rotten Kids?

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Author Info
Ted Bergstrom (University of California, Santa Barbara)
Carl Bergstrom (University of Washington, Zoology Dept)

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Abstract

The theory of parent-offspring conflict predicts that mothers and their offspring may not agree about how resources should be allocated among family members. A kid, for example, may favor a later weaning date than does its mother. Despite the mother's physical superiority, it may be that the kid is able to manipulate her behavior. In this paper, we investigate a two-locus population genetic model of weaning conflict in which offspring can attempt to extort resources from their parents by reducing their own chances of survival if their demands are not met. We find that the frequency of recombination between the genes controlling parental behavior and those controlling juvenile behavior determines the evolutionaryoutcome of this genetic conflict. When these genes are tightly linked, the offspring is likely to act so as to further the parents' reproductive interests. When they are not, offspring can successfully "blackmail" their parents into providing additional resources.

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File URL: http://repositories.cdlib.org/cgi/viewcontent.cgi?article=1103&context=ucsbecon
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Publisher Info
Paper provided by Department of Economics, UC Santa Barbara in its series University of California at Santa Barbara, Economics Working Paper Series with number 1999A.

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Date of creation: 26 Jan 2000
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Handle: RePEc:cdl:ucsbec:1999a

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Related research
Keywords: Parent-offspring conflict; evolution; altruism; rotten-kid theorem ;

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References listed on IDEAS
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  1. Gary S. Becker, 1974. "A Theory of Social Interactions," NBER Working Papers 0042, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  2. Bergstrom, Theodore C, 1995. "On the Evolution of Altruistic Ethical Rules for Siblings," American Economic Review, American Economic Association, vol. 85(1), pages 58-81, March. [Downloadable!] (restricted)
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  3. Bruce, Neil & Waldman, Michael, 1990. "The Rotten-Kid Theorem Meets the Samaritan's Dilemma," The Quarterly Journal of Economics, MIT Press, vol. 105(1), pages 155-65, February. [Downloadable!] (restricted)
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  4. Browning, Martin, 1992. "Children and Household Economic Behavior," Journal of Economic Literature, American Economic Association, vol. 30(3), pages 1434-75, September. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Theodore C Bergstrom, 2003. "An Evolutionary View of Family Conflict and Cooperation," Levine's Bibliography 506439000000000443, UCLA Department of Economics. [Downloadable!]
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  2. Donald Cox, 2003. "Private Transfers within the Family: Mothers, Fathers, Sons and Daughters," Boston College Working Papers in Economics 605, Boston College Department of Economics. [Downloadable!]
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