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Global Development: Why Some Countries Are Richer

Global development asks why some societies are rich and others poor, and how this can change. Sociologists measure development (GNI per person, HDI), explain inequality with theories (modernisation, dependency, world systems, neoliberalism, people-centred development), and study globalisation and its actors: transnational corporations, NGOs and international agencies. They also look at aid, trade and debt, urbanisation, the environment, war and conflict, and the roles of education, health and gender equality.

🎬 Step-by-step story

  1. The world is very unequal. Light bars show the share of people. Dark bars show the share of income. The poorest half of the world gets less than a tenth of income. The richest tenth gets about half.
  2. Why? Two big views. Modernisation says poor countries must climb steps, like Rostow's five stages, by changing values and investing. Dependency says rich core countries pull wealth out of poor periphery countries.
  3. Globalisation links every country to big players. Transnational corporations (TNCs) build factories, NGOs run projects, and agencies like the World Bank, IMF and UN lend money and set rules.
  4. Money flows both ways. Aid flows in (green). Debt payments and company profits flow out (red). Cities grow fast as people move for work. Pollution and conflict can undo progress.
  5. Development is more than money. Education, health and gender equality lift each other. When girls go to school longer, child deaths fall and family income rises.
  6. Your turn. Slide life expectancy, years of schooling and income. Watch the Human Development Index (HDI) change.

Tip: drag the 3D scene to turn it. Use two fingers to zoom.

🤔 Common doubts, cleared

If a country's average income rises, is everyone richer?

Not always. An average can rise while the poorest stay the same. Compare the light (people) and dark (income) bars.

Which theory is right: modernisation or dependency?

Each explains part. Some countries climbed (East Asia); others stayed drained. The 3D shows both views side by side.

Are TNCs good for poor countries?

They bring jobs and money but can pay low wages and send profits home. See the TNC node linked to the country.

Why can aid fail to help?

If more money flows out in debt and profits than flows in as aid, the country loses. Watch the red and green arrows.

Why focus on girls' education?

It lifts health and income too. When the education bar rises, the other two pillars rise.

Can a country be poor but have a good HDI?

Yes, if health and schooling are strong. Set income low but life expectancy and schooling high in free play.

Development and global inequality

Development means positive change in people's lives: more income, better health, more education and more freedom.

How it is measured

Terms such as 'developing', 'less economically developed' and 'Global South' are used; all are simplifications.

Theories of development

Globalisation, TNCs, NGOs and international agencies

Globalisation is the growing connection of the world through trade, money, media, travel and ideas.

Aid, trade, debt and urbanisation

Aid

Types: bilateral (one country to another), multilateral (through agencies), tied aid (must be spent buying the donor's goods), emergency aid and loans. Modernisation and neoliberal thinkers argue about whether aid helps or creates dependency; Marxists see it as a tool of power.

Trade and debt

Many poorer countries export cheap primary products and import expensive manufactured goods. Fair trade tries to pay producers more. Debt repayments can be larger than aid received, so money flows out.

Urbanisation

People move from villages to cities for work. Cities bring jobs and services, but fast growth creates informal settlements, crowding and the informal economy.

Environment and conflict

Education, health and gender in development

These three are linked: improve one and the others often improve.

Key formulas and definitions

Worked examples

1. A country has life expectancy 72 years. Find its health index.

Health index = (72 − 20) ÷ (85 − 20) = 52 ÷ 65 = 0.80.

2. Adults have on average 9 years of schooling; children are expected to get 12 years. Find the education index.

Mean part = 9 ÷ 15 = 0.600. Expected part = 12 ÷ 18 = 0.667. Education index = (0.600 + 0.667) ÷ 2 = 0.633.

3. With health index 0.80, education index 0.633 and income index 0.696 (income $10 000), find the HDI.

Multiply: 0.80 × 0.633 × 0.696 = 0.352. Cube root: ∛0.352 ≈ 0.706. HDI ≈ 0.71, which is 'high' human development.

4. A country receives $2 billion in aid but pays $3 billion in debt repayments and loses $1 billion in TNC profits sent abroad. What is the net flow, and what would dependency theory say?

Net flow = 2 − 3 − 1 = −$2 billion: money leaves the country. Dependency theory would say this shows how the core drains wealth from the periphery, keeping it underdeveloped.

Common mistakes

Practice quiz

1. Which theory says poor countries must pass through five stages of growth?
2. In dependency theory, rich countries are the…
3. HDI combines health, education and…
4. Aid that must be spent buying goods from the donor is…
5. A company with factories in many countries is a…

Practice: answer these yourself

Type or choose your answer, then press Check. Use a hint if you are stuck; the full solution appears after you answer.

Frequently asked questions

What is the difference between modernisation and dependency theory?

Modernisation blames internal factors such as traditional values and says poor countries should copy the West. Dependency blames external exploitation by rich core nations through colonialism, trade and debt.

How is HDI calculated?

Find a health index from life expectancy, an education index from mean and expected years of schooling, and an income index from GNI per person (log). HDI is the cube root of their product.

What do NGOs do in development?

They run local projects in health, education, water and rights. They are often flexible and close to people, but small and dependent on donors.

Where this is taught

Canada (Ontario)Grade 12E. Social Change and Quality of Life
England (GCSE, A level)Year 134.2.6 Topic option 2 (choose one): Global development

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