SOC312H1 Lecture Notes - Lecture 4: Marriage, Living Single, Engagement
Document Summary
Rough approximations for calculating economic dependency burden in a society. Total-, youth-, and old age-dependency ratios (check book) Constant growing vs. declining population type pyramids (fig 4. 3) What is stable is the shape of the age distribution. Stationary population is a particular kind of stable population (zero growth = constant size and age pyramid) Stable pop model allows us to explore what if scenarios. Like those described in table 4. 3 (different combinations of mortality and fertility) Rate of natural increase (rni) based on crude rates does not take into account current age composition. Use intrinsic rate of growth can be calculated instead. Stable pop that would result if current age-specific fertility and mortality were held constant indefinitelyderive stable equlavent population, and growth rate that is free of the confounding effect of age compositioin. For a country recently having undergone fertility decline.
