What you'll learn
This topic is about why some countries are richer than others, how that gap can be narrowed, and how the UK's own economy has changed. For AQA GCSE Geography you need to understand how development is measured, the causes and consequences of uneven development, the strategies used to reduce the gap, how one newly emerging economy is developing rapidly, and how economic change in the UK has reshaped employment and regions. The recurring examiner theme is that no single measure or strategy is sufficient on its own — development is multi-dimensional, and strategies have drawbacks as well as benefits. This guide covers development indicators and their limitations, the Demographic Transition Model, the causes of uneven development, aid, trade and other strategies, the role of transnational corporations, and the UK's post-industrial economy. By the end you should be able to evaluate a development measure, explain the development gap, and judge which strategies work best.
Key terms and definitions
Development — The progress of a country in terms of economic growth, use of technology and human welfare.
Gross National Income (GNI) per head — The total income of a country divided by its population, often adjusted for the cost of living.
Human Development Index (HDI) — A composite measure combining income, life expectancy and education into a single figure between 0 and 1.
Birth rate — The number of live births per thousand people per year.
Death rate — The number of deaths per thousand people per year.
Infant mortality rate — The number of deaths of children under one year old per thousand live births.
Life expectancy — The average number of years a person can expect to live.
Literacy rate — The percentage of adults who can read and write.
Development gap — The difference in standards of living between the richest and poorest countries.
Demographic Transition Model (DTM) — A model showing how birth rates, death rates and total population change as a country develops.
Transnational corporation (TNC) — A company that operates in more than one country.
Multiplier effect — The process by which an initial investment generates further economic growth beyond the original benefit.
Fair trade — A scheme guaranteeing producers in lower-income countries a fair, stable price for their goods.
Microfinance — Small loans made to individuals in lower-income countries to start or grow a business.
Deindustrialisation — The decline of a country's manufacturing industry.
Post-industrial economy — An economy dominated by services, information and technology rather than manufacturing.
Core concepts
Measuring development
No single indicator captures development adequately, and knowing why is worth marks.
Economic indicators include GNI per head and the proportion of people employed in each sector. Their weakness is that they are averages: a country with great inequality can show a respectable GNI per head while most of its population remains poor. They also exclude the informal economy and say nothing about health, education or freedom.
Social indicators include life expectancy, infant mortality, literacy rate, access to safe water and doctors per thousand people. These capture quality of life but not economic capacity.
The Human Development Index is preferred because it is composite, combining income, life expectancy and years of schooling. Its strength is that it measures several dimensions at once; its limitation is that it still produces a single average that hides inequality within a country.
The Demographic Transition Model
The DTM has five stages. In Stage 1 both birth and death rates are high and fluctuating, so population is low and stable. In Stage 2 death rates fall sharply as sanitation, water supply, food and healthcare improve, while birth rates stay high, so population grows rapidly. In Stage 3 birth rates fall as contraception becomes available, women gain education and employment, child mortality falls so families choose to have fewer children, and children move from being economic assets to costs; population growth slows. In Stage 4 both rates are low and population is high and stable. In Stage 5 birth rates fall below death rates and population declines slightly, as in several European countries and Japan.
The model is useful for comparison and prediction, but it was based on the experience of European countries and does not account for migration, for the effects of government population policies, or for countries that have moved through stages far faster than the original model implied.
Causes of uneven development
Physical causes include extreme climate limiting agriculture, drought, a lack of natural resources, being landlocked and therefore reliant on neighbours for trade access, and exposure to natural hazards that repeatedly destroy infrastructure.
Economic causes include a reliance on exporting a small number of primary products, whose prices fluctuate and which have low value compared with manufactured goods; high levels of debt requiring repayments that divert money from development; and unfair trade arrangements.
Historical causes include colonisation, which frequently structured economies around the export of raw materials to the colonising country, and conflict, which destroys infrastructure, deters investment and displaces people.
Consequences of uneven development
Consequences include differences in wealth, in health — life expectancy, infant mortality and access to healthcare — and in international migration, as people move from poorer to richer regions or countries seeking work and safety. Migration itself has consequences for both origin and destination: remittances sent home can be significant, but the origin country may lose skilled workers.
Strategies to reduce the development gap
Several strategies are assessed, and each has a clear trade-off.
Investment by foreign companies and governments brings capital and infrastructure but profits often leave the country. Industrial development creates jobs and generates tax revenue, but may cause pollution and poor working conditions. Aid can be short-term emergency relief or long-term development assistance; it can be highly effective when targeted at local needs, but may create dependency, may come with conditions favouring the donor, and can be lost to corruption.
Intermediate technology uses simple, affordable, locally maintainable equipment — hand pumps, treadle pumps, efficient stoves — and is often effective precisely because it matches local skills and materials. Fair trade guarantees a fair price and invests a premium in the community, though only a small share of the final retail price reaches the producer and certification costs can exclude the poorest farmers.
Debt relief frees money for spending on health and education, but may be conditional. Microfinance provides small loans to start businesses and reaches people excluded from conventional banking, though the sums are too small to transform an economy and interest rates can be high.
Tourism can be transformative for countries with natural or cultural attractions, bringing foreign currency, jobs and infrastructure. The drawbacks are seasonality, vulnerability to events beyond the country's control, environmental damage, and profits leaking to foreign-owned operators.
Transnational corporations and newly emerging economies
You should study one newly emerging economy in detail — commonly Nigeria or India — covering its location and importance, its industrial structure, the role of TNCs, its relationships with aid, trade and investment, and the environmental and social effects of rapid growth.
TNCs bring investment, employment, skills training, technology and export earnings, and can trigger a multiplier effect as wages are spent locally and supporting industries develop. Against this, wages may be low by the standards of the company's home country, working conditions and environmental regulation may be weaker, profits are often repatriated, and decisions affecting thousands of workers are taken elsewhere. A balanced judgement acknowledges both, and often concludes that the benefit depends on how well the host government regulates the arrangement.
Economic change in the UK
The UK has undergone deindustrialisation — the decline of heavy manufacturing such as coal, steel, shipbuilding and textiles — caused by competition from countries with lower production costs, the exhaustion of resources, mechanisation and changes in government policy. The result is a post-industrial economy dominated by services, finance, research, and information and communication technology.
Key features include the growth of science and business parks, often on edge-of-town sites with good motorway access and near universities; the expansion of finance and the creative industries; and a continuing north–south divide in average incomes, employment and health, which governments have attempted to address through regional investment, transport improvements and enterprise zones.
Modern industry is under pressure to be more environmentally sustainable, through cleaner technology, stricter emissions regulation and recycling of waste. Rural areas have also changed: some near cities have grown through counter-urbanisation and commuting, while remoter rural areas have experienced population decline, service closure and an ageing population.
Worked examples
Example 1: Evaluating GNI per head as a development measure
GNI per head is useful because it is widely available, easily compared and reflects a country's economic capacity. However, it is an average, so it conceals inequality; it excludes the informal economy, which is large in many lower-income countries; and it says nothing about health, education or rights. A fuller picture requires a composite measure such as HDI. This structure — strength, weakness, better alternative — works for any indicator question.
Example 2: Explaining why birth rates fall in Stage 3 of the DTM
Improved healthcare means fewer children die, so families no longer need many children to ensure some survive. Contraception becomes available and accepted. Women gain education and paid employment, so many delay having children. As the economy shifts away from agriculture, children stop being a source of farm labour and become a cost. Governments may also encourage smaller families. Each reason must link to the decision to have fewer children.
Example 3: Explaining the multiplier effect
A TNC opens a factory, creating jobs. Workers earn wages and spend them locally, so shops and services grow and take on more staff. Supplier firms set up nearby to serve the factory, creating further jobs. The government collects more tax, which can fund roads, schools and healthcare, making the area more attractive to further investment. The initial investment therefore produces growth well beyond the original jobs.
Example 4: Evaluating aid
Long-term development aid targeted at water supply, healthcare or education can improve quality of life substantially and build capacity for the future, particularly where local people are involved in deciding how it is used. However, aid can create dependency, may be tied to conditions that benefit the donor, can be lost to corruption, and sometimes funds projects poorly matched to local needs. A judgement might be that small-scale, locally led aid is more reliably effective than large-scale top-down projects.
Common mistakes and how to avoid them
Treating development as only about money. It includes health, education, equality and quality of life, which is why composite measures exist.
Forgetting that averages hide inequality. This is the single most reliable evaluation point for any indicator question.
Describing the DTM instead of explaining it. State why rates change at each stage, not just that they do.
Assuming TNCs are entirely good or entirely bad. Balance is expected, and the regulatory context matters.
Confusing short-term emergency aid with long-term development aid. They have different purposes and different criticisms.
Saying fair trade solves poverty. Only a small share of the retail price reaches producers, and certification has costs.
Treating deindustrialisation as simply job losses. It also reshaped where people live and work and drove the growth of the service sector.
Exam technique for "The Changing Economic World"
For any indicator question, use the structure: what it shows, why it is useful, what it misses.
Learn the DTM stages with the reasons attached, especially the Stage 3 fall in birth rates, which is the most commonly examined.
Sort causes of uneven development into physical, economic and historical — it gives a ready structure and shows range.
For every strategy, learn one advantage and one disadvantage. Evaluation questions here are nearly always about trade-offs.
Know your newly emerging economy case study in detail, with named TNCs, industries and impacts, and use the specific figures from the case study you have been taught.
For UK questions, link deindustrialisation to its causes and to its consequences for regions and employment, rather than listing declining industries.
Quick revision summary
- Development is measured by economic indicators (GNI per head), social indicators (life expectancy, infant mortality, literacy) and the composite HDI; all averages hide inequality.
- The DTM has five stages: death rates fall first (Stage 2), birth rates follow (Stage 3) as healthcare, contraception and female education improve.
- Causes of uneven development are physical (climate, resources, landlocked, hazards), economic (primary products, debt, unfair trade) and historical (colonialism, conflict).
- Consequences: differences in wealth, health and international migration.
- Strategies: investment, industrial development, aid, intermediate technology, fair trade, debt relief, microfinance, tourism — each with a clear drawback.
- TNCs bring jobs, investment and the multiplier effect, but repatriate profits and may offer low wages and weak regulation.
- The UK has experienced deindustrialisation and become a post-industrial economy based on services, finance and technology.
- Features include science and business parks, a persistent north–south divide, and pressure for environmentally sustainable industry.