Class Outline: Chapter 3 – Population
Global Population
World Population =
Largest Countries & Gee Whiz Facts
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Population Density =
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Factors Affecting Population Distribution
1. Environment
2. Economic Factors
3. Historical/Political Factors
4. Demographic Factors
5. Urbanization
Urbanization =
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Correlates with Urbanization (Benin vs. Belgium)
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Population Growth Over Time & Space
 Fundamental Demographic Equation
 Crude Birth Rate:
 Crude Death Rate:
 Rate of Natural Increase
 Doubling Time (“Rule of 70”)
Population vs. Resources (Thomas Malthus)
Malthus could not predict:
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Theory of Demographic Transition (Population Change over Time)
Stage 1 – Low Growth:
Stage 2 – High Growth:
Stage 3 – Decreasing Growth:
Stage 4 – Low Growth:
Population Pyramids: What do they tell us about demographic transition?
Human Migration: Population Change Over Space
What is it?
Migration Trends and Patterns
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Major Issues in Migration
1. Who Moves?
a.
b.
c.
d.
e.
2. Why Move?: Push & Pull Factors
Push Factors
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Pull Factors
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3. Where Do People Move? (Direction of Migration Flow)
Classical Theory of Labor Migration
Assumptions:
1. Wages are the primary motivating factor in migration
2. Workers have perfect (good) information about prevailing wage rates in other
regions.
3. There is free mobility between regions -- No barriers to movement.
4. Workers also accurately incorporate other costs into their migration decision
- Costs of moving
- Transactions costs (selling property, search costs)
- "Psychic costs" (cost of leaving family/friends, familiar surroundings,
etc.)
4. Impact of Migration on Origin and Destination
(Note: Assume move from Region A to Region B)
Impact on Region A
Impact on Region B
Age
Death Rate
Birth Rate
Education
Note: Retirement migration has exactly the opposite effect as above.