Migration & Population Policy
- Classify migration types and apply push and pull factors
- Explain Ravenstein’s laws and the gravity model of migration
- Compare pronatalist and antinatalist population policies and their effects
Types of migration and why people move
Migration is a permanent change of residence. It may be international (across borders) or internal (within a country), and voluntary or forced. Forced movers include refugees (fleeing persecution across a border) and internally displaced persons (uprooted but still inside their country). Movement is driven by push factors that repel people from an origin (war, drought, unemployment) and pull factors that attract them to a destination (jobs, safety, family). Intervening obstacles (a border wall, a mountain range) can block the trip, while intervening opportunities encountered en route can cut it short.
Ravenstein and the gravity model
E.G. Ravenstein’s laws of migration still describe patterns: most migrants move short distances; long-distance migrants head for major economic centers; each migration flow produces a counter-flow; and economic motives dominate. The gravity model formalizes the intuition that interaction between two places rises with their populations and falls with the distance between them — so a large, nearby city attracts more migrants than a small, distant one. This is distance decay applied to migration.
Population policies
States try to steer their demographics. Antinatalist policies discourage births — China’s One-Child Policy (1979–2015) slowed growth but left a skewed sex ratio and a rapidly aging population. Pronatalist policies encourage births with incentives when populations are shrinking — France and Japan offer child allowances, paid leave, and childcare to lift low fertility. Immigration policy is another lever: aging, low-fertility countries may recruit migrant workers to fill labor gaps, though this raises debates over assimilation and services.
After a prolonged drought destroys farm income, thousands leave a rural province for the national capital, but many stop first in a mid-sized town where factory jobs open up. Identify the push factor, the pull factor, and the concept explaining the interrupted move.
- 1.The drought and collapse of farm income repel people from the rural origin — that is the push factor.
- 2.The capital’s jobs and services attract them — that is the pull factor.
- 3.Many migrants halt in the mid-sized town because it offers jobs closer than the capital.
- 4.An attractive opportunity encountered along the route that ends the journey early is an intervening opportunity.
A family flees armed conflict and crosses an international border into a neighboring country to seek safety. Under standard definitions, they are best classified as:
The refugee vs. IDP distinction is a single fact: did they cross an international border? Crossed = refugee (or asylum seeker before status is granted). Stayed inside the country = internally displaced person. The border is the whole test.
China’s former One-Child Policy is an example of which type of population policy, and what long-term demographic problem is it associated with?
Answer the 2 checkpoints as you read.
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