Chapter 13 Notes_.docx - CHAPTER 13 NOTES Demography From...

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CHAPTER 13 NOTES: Demography: From 200,000 years B.C. until 2000 B.C., the human population grew to 20 million by 1 C.E. = 200 million We did not hit 1 billion people until 1800 Current population: 7.5 billion persons Growing 80-100 million persons annually Demography: interested in causes and consequences of growth Fertility: Fertility: incidence of child bearing in a society’s population Fecundity: potential for childbearing Crude Birth Rate (CBR): the number of live births in a given year for every thousand people in a population Refined Birth Rate (RBR): the number of live births in a given year for every thousand women ages 14-44 in a population “Refined” because not every person gives birth in society Mortality: Crude Death Rate (CDR): number of deaths in a year for every 1,000 people in that society # of deaths/population times 1,000 Infant Mortality Rates (IMR): number of deaths among infants under one year for each 1,000 live births Life Expectancy: average lifespan for males and females Males: 73 in 1992; 77.4 in 2016 Females: 79 in 1992; 82.2 in 2016 Population Composition: Sex Ratio: # of males compared to # females (always per 100 females) U.S. - approximately 96 males to 100 females because women typically outlive men India - approximately 107 males to 100 females Men receive more resources Parent may provide less care to female children Malthusian Theory of Population Growth:
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