Sociology 1020 Lecture Notes - Lecture 20: Demographic Transition, Cultural Lag, Stellar Population
29 Mar 2019
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Sociolog 1020 lesson 20 population & urbanization. 12000 yrs ago, there were about 6m people in the world. Lifespan: how long someone lives, something social scientists don"t really consider themselves with, a theoretical idea; how long people live is a potential number scientists 120-128 years, limited by environment & genetics. Longevity: the actual length that someone lives (much more interested in this in sociology, framed through life expectancy, people"s behaviors influencing it, their environment. As child mortality falls, so will family size. Death rates drop & birth rates drop (cultural lag) Percentage child decline can be because of female literacy decline. Demographic transition theory: explains how changes in fertility & morality affected population growth from preindustrial to postindustrial times. Theory based on observation that european population developed in 4 distinct stages: The preindustrial period: what most of human existence has been, a slow increase in population, extremely high birth and death rates, women having 6-
