You talent: Exchange theory of aging
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Exchange theory of aging Video
Chapter 5: Social Theories of Aging exchange theory of aging
Exam (elaborations)
Natural ratio[ edit ] World map of birth sex ratios, This assumption has been questioned by some scholars. This has been explained by sex differences in genetic and biological makeup, with boys being biologically weaker and more susceptible to diseases and premature death.
It has been proposed that these environmental factors also source sex differences in mortality. For example, in the United States, as ofan adult non-elderly male is 3 to 6 times more likely to become a victim of a homicide and 2. For example, the male to female ratio falls from 1. In the aggregated results of 56 Demographic and Health Surveys [22] in African countries, the ratio is 1.
Tentamen (uitwerkingen)
Some scholars argue that strong socioeconomic factors such as the dowry system in India and the one child policy of China are responsible for prenatal sex selection. In a widely cited article, [24] Amartya Sen link such views. Other researchers argue that an unbalanced sex ratio should not be automatically held as exchange theory of aging of prenatal sex selection; Michel Garenne reports that many African nations have, over decades, witnessed birth sex ratios below 1.
For mothers having babies after the first, this ratio consistently decreased with each additional baby from 1.
The age of the mother affected the ratio: the overall ratio was 1. Outlined by Ronald Fisher in his book, it is an argument in terms of parental expenditure. Essentially he argues that the ratio is the evolutionarily stable strategy. Natural factors[ edit ] The natural factors that affect the human sex ratio are an active area of scientific research.]
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