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When we map development indicators across the world, clear patterns emerge. Some parts of the world are wealthy, healthy, and well-educated, while others face extreme poverty, poor health, and limited opportunities. This lesson explores those global patterns, the classification systems used to group countries, and the key concept of the development gap.
If you plot indicators like GNI per capita or HDI on a world map, a striking pattern appears:
This broad pattern has remained remarkably consistent over decades, though some countries have experienced dramatic improvements (particularly in East and South-East Asia).
In 1980, German politician Willy Brandt proposed a simple line dividing the world into the wealthy "North" and the poorer "South." This is known as the Brandt Line.
| Feature | The "North" | The "South" |
|---|---|---|
| Location | North America, Europe, Russia, Japan, Australia, New Zealand | Africa, Latin America, most of Asia |
| GNI per capita | Generally above $12,000 | Generally below $12,000 |
| HDI | Typically above 0.800 | Varies widely (0.350–0.800) |
| Life expectancy | 75–85 years | 50–75 years |
| Economy | Service-based, high-tech, diversified | Often agriculture-based, resource-dependent |
The Brandt Line is a simplification that is increasingly outdated:
Exam Tip: The Brandt Line is a useful starting point, but always acknowledge its limitations in exam answers. Saying "the pattern is more complex than the Brandt Line suggests" shows evaluative thinking.
Geographers and international organisations classify countries into groups based on their level of development. The most commonly used system in the Edexcel B specification groups countries into three categories:
| Classification | Full Name | Characteristics | Examples |
|---|---|---|---|
| HIC | High-Income Country | High GNI per capita (>$13,205), diversified economy, high HDI, good infrastructure | UK, USA, Japan, Germany, Australia |
| NEE | Newly Emerging Economy | Rapidly growing economy, increasing industrialisation, rising living standards, attracting foreign investment | India, China, Brazil, Nigeria, Mexico |
| LIC | Low-Income Country | Low GNI per capita (<$1,135), economy dependent on primary sector, low HDI, limited infrastructure | Chad, Niger, Malawi, Afghanistan, South Sudan |
graph LR
A[Country Classifications] --> B[LIC]
A --> C[NEE]
A --> D[HIC]
B --> B1[Low income]
B --> B2[Primary sector dominant]
B --> B3[Low HDI]
C --> C1[Rapidly growing income]
C --> C2[Industrialising]
C --> C3[Rising HDI]
D --> D1[High income]
D --> D2[Service sector dominant]
D --> D3[High HDI]
The World Bank uses a four-tier income classification based on GNI per capita:
| World Bank Category | GNI per Capita (2023) |
|---|---|
| Low-income | $1,135 or less |
| Lower-middle-income | 1,136–4,465 |
| Upper-middle-income | 4,466–13,845 |
| High-income | $13,846 or more |
The UN also uses the term Least Developed Country (LDC) for the world's poorest and most vulnerable nations — currently 46 countries, mostly in Africa.
It is important to understand that development varies enormously within countries, not just between them:
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