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Thou shalt not diversity: Why "Two of Every Sort"?

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  • Ibragimov, Rustam

Abstract

This paper presents a study of the intertemporal propagation of distributional properties of phenotypes in general polygenic multisex inheritance models with sex- and time-dependent heritabilities. It further analyzes the implications of these models under heavy-tailedness of traits' initial distributions. Our results suggest the optimality of a flexible asexual/binary mating system. Switching between asexual and binary inheritance mechanisms allows the population effectively to achieve a fast suppression of negative traits and a fast dispersion of positive traits, regardless of the distributional properties of the phenotypes in the initial period.

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  • Ibragimov, Rustam, 2007. "Thou shalt not diversity: Why "Two of Every Sort"?," Scholarly Articles 2623763, Harvard University Department of Economics.
  • Handle: RePEc:hrv:faseco:2623763
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    File URL: http://dash.harvard.edu/bitstream/handle/1/2623763/ibragimov_thoushaltnot.pdf
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    1. An, Mark Yuying, 1998. "Logconcavity versus Logconvexity: A Complete Characterization," Journal of Economic Theory, Elsevier, vol. 80(2), pages 350-369, June.
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    1. Ibragimov, Rustam, 2008. "Heavy-tailedness and threshold sex determination," Statistics & Probability Letters, Elsevier, vol. 78(16), pages 2804-2810, November.

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