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Theories of
Development

Explore the major models that explain why some countries are wealthy while others remain in poverty, and how economic growth spreads across the globe.

AP Human Geography

What Is Development?

Development is the process by which a country improves the economic, political, and social well-being of its people. Geographers measure it using indicators like GDP per capita, literacy rates, life expectancy, and the Human Development Index (HDI).

The Core-Periphery Framework

Core
Wealthy, industrialized nations that dominate global trade and finance (e.g., USA, Japan, Germany).
Semi-Periphery
Countries with emerging economies that share traits of both core and periphery (e.g., Brazil, India, China).
Periphery
Less developed countries dependent on exporting raw materials, often exploited by core nations.

Why Do Theories Matter?

Development theories help us understand spatial inequality: why wealth is concentrated in certain regions. They shape foreign aid policies, trade agreements, and international development programs.

1
Explain patterns: Why is Sub-Saharan Africa less developed than Western Europe?
2
Guide policy: Should a country pursue industrialization or debt relief?
3
Predict futures: Which countries will join the semi-periphery next?

Rostow's Modernization Theory

W.W. Rostow (1960) proposed that all countries pass through five stages of economic growth, modeled on Western industrialization. Development is seen as a linear, universal process.

Traditional Preconditions for Takeoff Takeoff Drive to Maturity High Mass Consumption Economic Growth Time

The Five Stages in Detail

1
Traditional Society: Subsistence agriculture, limited technology, rigid social structure.
2
Preconditions for Takeoff: Progressive leadership invests in infrastructure, education, and resources.
3
Takeoff: Rapid industrialization, urbanization, and growth in one or two key sectors.
4
Drive to Maturity: Diversified economy, technology spreads across sectors, sustained growth.
5
High Mass Consumption: Consumer-driven economy with high incomes and widespread access to goods.

Wallerstein's World-Systems Theory

Immanuel Wallerstein (1974) argued that the global economy is a single capitalist world-system divided into three tiers. Unlike Rostow, he saw development as a zero-sum game: the core enriches itself at the expense of the periphery.

Core USA, EU, Japan Semi-Periphery Brazil, India, China Periphery Much of Sub-Saharan Africa Wealth flows in Resources extracted

Dependency Theory

Building on Marxist thought, Andre Gunder Frank and others argued that periphery countries are not simply "undeveloped": they are actively underdeveloped by the exploitative practices of wealthy nations through colonialism, unfair trade, and debt.

Colonial Legacy
European powers extracted wealth and restructured economies to serve their interests.
Unequal Exchange
Periphery exports cheap raw materials and imports expensive manufactured goods.

Modernization vs. Dependency

Modernization Dependency
Origin Rostow (1960) Frank (1966)
View of Development Linear, universal stages Structural exploitation
Cause of Poverty Internal: lack of investment External: colonial exploitation
Solution Foreign aid, investment, tech Restructure global trade
Model for Success Follow the Western path No single path: break free
Criticism Eurocentric, ignores exploitation Pessimistic, ignores agency

Commodity Dependence Trap

Many periphery nations rely on exporting one or two raw commodities (oil, coffee, minerals). This creates vulnerability to price volatility and keeps them locked in the periphery.

Periphery e.g., Nigeria Raw Materials Oil, Cocoa Core e.g., USA Manufactured Goods Cars, Tech Low value Low price High value High price

How to Analyze a Development Scenario

1
Identify the country's position: Is it core, semi-periphery, or periphery? Look at GDP, HDI, and trade patterns.
2
Determine the economic structure: Is the economy based on agriculture, manufacturing, or services?
3
Apply the right theory: Does the scenario emphasize internal barriers (Rostow) or external exploitation (Dependency/World-Systems)?
4
Evaluate the solution proposed: Does the policy focus on foreign investment, trade reform, debt relief, or self-sufficiency?
5
Consider critiques: Acknowledge what the chosen theory overlooks (e.g., cultural factors, gender, environment).

Example: South Korea

South Korea transformed from a war-torn agrarian society in the 1950s to a high-tech industrial powerhouse by the 2000s. Which theory best explains this?

1960s
Government invested heavily in education and export-oriented industry (Stage 2-3 in Rostow).
1980s
Economy diversified into electronics, automobiles, and steel (Stage 4: Drive to Maturity).
2000s
Consumer-driven economy with Samsung, Hyundai, and K-pop exports (Stage 5: High Mass Consumption).

Example: Haiti

Haiti is the poorest country in the Western Hemisphere. Despite receiving billions in foreign aid, it remains deeply impoverished. Why?

1
Colonial exploitation: France extracted vast wealth from enslaved labor for centuries.
2
Independence debt: Haiti was forced to pay France 150 million francs for recognition, crippling its economy for over a century.
3
Neocolonial interference: U.S. occupation (1915-1934) and support for dictators undermined self-governance.

Example: China's Rise

China has moved from the periphery to the semi-periphery (and arguably toward the core) in just four decades. Its rise challenges simple models.

Rostow's View
China is in "Drive to Maturity": rapid industrialization, diversified economy, growing consumer class.
World-Systems View
China exploits its own periphery (rural workers) and extracts resources from Africa, behaving like a core power.

Common Mistakes

✕ Conflating Theories
Mixing up Rostow (internal stages) with Wallerstein (external exploitation). They have opposite views on why poverty exists.
✕ Assuming Linear Progress
Rostow's model is not inevitable. Countries can regress, stall, or skip stages. Many never reach Stage 5.
✕ Ignoring Critiques
AP essays expect you to evaluate theories, not just describe them. Always mention at least one limitation.

Theory Summary

Theory Key Idea Blame For Poverty Example
Modernization (Rostow) 5 stages of growth Internal barriers South Korea
World-Systems (Wallerstein) Core exploits periphery Structural position Global economy
Dependency (Frank) Underdeveloped by design Colonial legacy Haiti

Question 1 of 5

According to Rostow's Modernization Theory, what is the primary cause of underdevelopment in peripheral countries?

Question 2 of 5

In Wallerstein's World-Systems Theory, which category describes countries like Brazil and India that have both industrial and agricultural sectors?

Question 3 of 5

A country that exports coffee and cocoa at low prices and imports manufactured electronics at high prices is best illustrating which concept?

Question 4 of 5

Which criticism of Modernization Theory does Country X's situation best support?

Question 5 of 5

South Korea's rapid industrialization from the 1960s to 2000s is most often cited as evidence supporting which development theory?