On market forces and human evolution

JOURNAL OF THEORETICAL BIOLOGY

卷:247

Article

Saint-Paul, Gilles

关键词: evolution;    genotype;    division of labor;    specialization;    gene-culture coevolution;    natural selection;    trade;    exchange;    markets;    time allocation;   

DOI  :  10.1016/j.jtbi.2007.03.021

来源: Elsevier

【 摘 要 】

This paper studies how an institution such as markets affects the evolution of mankind. My key point is that the forces of natural selection are made weaker because trade allows people to specialize in those activities where they are strong. and to offset their weaknesses by purchasing adequate goods oil the market. Absent trade, people must allocate their time among all the activities necessary for their fitness. A productivity advantage in any given dimension will increase survival probability, so that in the long run natural selection makes Sure that population is entirely made of individuals with the strongest alleles at all loci. Under trade. there exist long-run equilibria where weaker individuals are able to achieve the same Survival potential as the fittest, by specializing in activities where they are not at a disadvantage. and purchasing goods that are substitute for activities for which they are weak. (C) 2007 Elsevier Ltd. All rights reserved.

【 授权许可】

Free