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Closing the Gap » Top-Down and Bottom-Up Development

What you'll learn this session

Study time: 30 minutes

Edexcel spec: 9.3 (c)

The difference between top-down and bottom-up development projects
Advantages and disadvantages of each type
Named examples: HS2 and Brixton Energy in the UK, the Sardar Sarovar Dam and Barefoot College in India
How to write a balanced answer using a named example

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Two ways to start a development project

A development project is a plan that aims to improve people's lives, for example by providing water, power, transport, jobs or skills. The big question is: who decides, and who does the work? The answer splits projects into two types.

Key terms:

Top-down development: projects planned, paid for and run by governments or large organisations, often on a large scale.
Bottom-up development: projects planned and run by local people, often with small amounts of money and simple technology, to meet their own needs.
Infrastructure: large-scale systems a country needs, such as roads, railways, dams and power stations.

Some projects have help from both sides. Even so, most projects can be placed mainly in one group, and the exam asks you to judge each.

Top-down projects

✅ Advantages

Huge sums of money and expert engineers can be used, so very large projects are possible.
They can help millions of people at once, for example by bringing water or electricity to many regions.
One plan covers a whole country, so different areas can be linked together.

❌ Disadvantages

They are very expensive and costs can rise far above the first estimate.
Local people may not be asked what they need, or may have to leave their homes.
They can damage the environment and take many years to finish.

Bottom-up projects

✅ Advantages

They are cheap and use simple technology that local people can repair themselves.
Local people choose what is built, so it matches what they really need.
People learn new skills and take pride in the project, so it is more likely to last.

❌ Disadvantages

They are small, so they help only one village, estate or group at a time.
They may run short of money, equipment or expert advice.
They cannot build big projects such as national railways or large dams.

Named example: a developed country, the UK

Top-down: HS2. High Speed 2 is a high-speed railway planned and paid for by the UK government. It was designed to link London with cities in the Midlands and the North, to add train capacity and to support jobs and growth outside the south-east.

Advantage: a national plan with government money can build a major railway that no local group could.
Disadvantage: the cost rose well above early estimates, and building it affected homes, farmland and wildlife along the route. In 2023 the government cancelled the planned northern section, showing how top-down plans can change.

Bottom-up: Brixton Energy. In Brixton, London, local people set up community energy co-operatives that put solar panels on the roofs of council housing estates. Residents can invest, and the money earned from the electricity is used locally.

Advantage: local people choose the project, own it and share in the benefits.
Disadvantage: it is small scale, so it makes only a small difference to the country's electricity supply.

Named example: an emerging country, India

Top-down: the Sardar Sarovar Dam. This large dam on the Narmada River in Gujarat was planned by governments in India. It supplies water for drinking and irrigation and produces hydro-electric power for a large area.

Advantage: it brings water and electricity to many people, including farmers who can irrigate their fields.
Disadvantage: the reservoir flooded land and many thousands of people had to move, and some campaigners said they were not given fair help to start again. Large dams also change river ecosystems.

Bottom-up: Barefoot College. Barefoot College, started in Tilonia in Rajasthan, trains people from poor rural communities, including women with little schooling, to become solar engineers. They return to their villages to install and repair solar lighting.

Advantage: it is low cost, builds skills and the villagers can maintain the equipment themselves.
Disadvantage: each project is small, so it reaches far fewer people than a national scheme.

Worked example

Question: Suggest one reason why a bottom-up project might last longer than a top-down project.

Answer: Local people chose the project and were trained to run it, so they can keep it working themselves (1). A top-down project depends on outside money and experts, and may fail if they leave (1).

Which is better?

Neither is always better. Top-down projects suit very large needs, such as railways, dams and national power grids. Bottom-up projects suit local needs and are good value for money. Many countries use both, and a good answer says that the best results often come when the two work together, for example when a government listens to local people before it builds.

Common mistakes

Avoid these slips

Mixing up the terms. Top-down means decided at the top (government). Bottom-up means decided by local people.
Writing "it is bad because it is expensive" without a named example. Always name the project and country.
Only giving advantages. Questions often ask for both advantages and disadvantages.
Thinking that all top-down projects fail or that all bottom-up projects succeed. Judge each project on its own facts.

Exam-style question

(a) Explain one difference between top-down and bottom-up development projects. [2 marks]

(b) For a named developing or emerging country, assess the advantages and disadvantages of a top-down development project you have studied. [4 marks]

Model answer

(a) Top-down projects are planned and paid for by governments or large organisations (1), while bottom-up projects are planned and run by local people to meet their own needs (1).

(b) In India the Sardar Sarovar Dam is a top-down project. An advantage is that it supplies drinking water, irrigation and electricity to a large area (1), which helps many farmers and families (1). A disadvantage is that the reservoir flooded land and many thousands of people had to move (1), so some lost their homes and way of life (1).

Exam tip

For "named example" questions, write the project name and country first, then give one advantage and one disadvantage, each with a reason.

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