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CH6 Population Growth, Migration and Development

CH6 Population Growth, Migration and Development - Ch 6...

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Ch. 6 Population Growth, Migration and Development Population Growth Introduction: Population growth Vs Development (How they affect each other?) 6 basic questions: 1. Rapid population growth makes it more difficult to provide essential social services (housing, transport, sanitation and security) 2. increase in labor force more employment opportunities or unemployment increase 3. Can they overcome absolute poverty? e.g. sufficient food supply and distribute 4. If the development countries able to extend the coverage of their health and education system? 5. Population growth limited freedom of desired family size Family size vs poverty (any relationship?) 6. At last, population growth = rising living standard or increase in absolute poverty number?
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What make its difficult to become more economic developed? 1. Dependence burden: Population is very youthful in the developing world. i.e. the youth dependency ratio (the proportion of youths(under age 15) to economically active adults (ages 15~64) is very high. e.g. LDCs’ work force need to support almost twice as many children as it does. Rapid growth more children more difficult for the workers to support the children 2. The Hidden Momentum of Population Growth Two reason: i) High birth rate can not be altered overnight. It may not be the first priority of the national leaders. Also it takes times to reduce it to desired level. ii) LDCs always have a high youth dependency ratio as stated above, when the children mature, the potential parents must be greater than present birth rate remains high (This explain why it take times to reduce birth rate) 3. The demographic transition (3 stages) First stage: High birth rate and High death rate = low and stable population growth rate. Second stage (modernization): Because of better public health methods, healthier diets, higher income and other improvement huge reduction of death rate (i.e. raised life expectancy) High birth rate + relatively low death rate = rapid population growth Third stage: Started when modernization cause birth rate decline Low birth rate + low death rate = low or no population growth
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CH6 Population Growth, Migration and Development - Ch 6...

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