SOC101Y1 Chapter Notes - Chapter 4: Pension, Overdiagnosis, Poverty Trap
Document Summary
Under 15, age 15-64, 65+: by looking at these three sectors, scientists can determine the economic dependency burden in a society. The ratio of youth plus old-age dependents to the working population gives a measure of a society"s overall dependency on the workers. If a society has a high youth dependency ratio, its old age dependency ratio will be low. Age pyramids: pictorial representation of age and sex compositions. Canada"s age pryamid: bulge associated with baby boom. The people over 65 is increasing while the 15 and under cohort is declining. Type a: rapidly growing populations have wide base and narrow top. Represents a stationary population with a constant rate of growth. Type c: countries that have completed the demographic transition. Age distribution is top-heavy and the base is narrow. Fertility is the major determinant of age composition. Varying mortality while holding fertility constant has little effect on age distribution. A young population is produced by high fertility rates.
