"Lec 10 - Quantitative Aspects" Global Problems of Population Growth (MCDB 150) Census data is often politically influenced and hence inaccurate. The birthrate in developing countries is nearly twice that in developed countries. Most humans live in less developed countries, so the world birthrate is near the higher number. The world birthrate is two and a half times the death rate; we are not close to population stabilization. Almost everywhere, the death rate has been drastically reduced; further changes will not massively affect demographic trends. Changes in fertility rate now control population. Demographic data must be corrected for age structure. A young population in a poor country will have a lower death rate than an older population in a richer country. Countries with high birthrates and exploding populations will have a high proportion of children. There are more people in each younger age bracket than in older ones. Many more adolescents will come into reproductive ages than older women will leave fertile ages. Fertility per woman is falling in the world, but, since there are ever more childbearers, the number of children born does not drop. Because of this 'momentum,' it can take over 100 years from when fertility falls to replacement level (~2 children per woman) to when population stabilizes. In developing countries, even though fertility has been reduced, population growth often outstrips economic growth. People may give up on modernization and instead, idealize a return to some imagined past that was glorious. 00:00 - Chapter 1. Censuses 09:48 - Chapter 2. Politics of Census Taking 20:14 - Chapter 3. World Birth and Death Rates 27:51 - Chapter 4. Demographic Age Distribution 43:26 - Chapter 5. Declining Fertility Rates and Population Momentum 57:20 - Chapter 6. Modernization's Window of Opportunity Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2009.
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Tags: Lec 10 - Quantitative Aspects
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Lec 1 - Evolution of Sex and Reproductive Strategies
Lec 2 - Sex and Violence Among the Apes
Lec 4 - When Humans Were Scarce
Lec 5 - Why Is Africa Different?
Lec 7 - Demographic Transition in Europe; Mortality Decline
Lec 8 - Demographic Transition in Europe; Fertility Decline
Lec 9 - Demographic Transition in Europe
Lec 11 - Low Fertility in Developed Countries (Guest Lecture by Michael Teitelbaum)
Lec 12 - Human and Environmental Impacts
Lec 13 - Fertility Attitudes and Practices
Lec 14 - Demographic Transition in Developing Countries
Lec 16 - Population in Traditional China
Lec 17 - Population in Modern China
Lec 18 - Economic Impact of Population Growth
Lec 19 - Economic Motivations for Fertility
Lec 20 - Teen Sexuality and Teen Pregnancy
Lec 21 - Global Demography of Abortion
Lec 22 - Media and the Fertility Transition in Developing Countries (Guest Lecture by William Ryerson)
Lec 23 - Biology and History of Abortion