Demographic Transition in Ecological Focus
重新审视人口转变理论，结合人类生态学与进化理论，强调服务业主导、种族同质性和前工业社会复杂性对生育率下降的影响，基于约60个欠发达国家的数据分析。
Demographic transition theory posits that modernization, particularly in the form of urban industrialism, fundamentally alters the environmental context surrounding fertility decision-making, thereby reducing the advantages of having children. While fertility research has either questioned the link between modernization and fertility or attempted to provide the intervening links between the two, there has been little theoretical or empirical refinement of the macrosocial/contextual principles of the theory. We argue that human ecology and evolutionary theory can help respecify and revitalize demographic transition theory. Our respecification produces a more logical account of fertility decline that emphasizes the influences of service economies and the social adaptations attendant on ethnic heterogeneity and preindustrial social complexity. Analyses of changes in total fertility rates in approximately 60 less-developed countries suggest: (1) general (if partially ambiguous) support for demographic transition theory, (2) confirmation of a robust effect of service-sector dominance on fertility, and (3) the importance of ethnic homogeneity and preindustrial social complexity to demographic transition.