GCSE-readyGeo 2026: Why employment structures change
Sector shift is when the main economic sector of a country changes, for example from primary to secondary. Here is why it happens.
Why primary jobs are falling
Low wages in farming and mining.
Mechanisation: machinery and better technology mean fewer workers are needed.
Danger and education: primary work is manual and can be dangerous (such as mining); as education improves people prefer other jobs.
Raw materials run out, such as fossil fuels, and climate change and desertification reduce farming jobs.
Globalisation: goods are imported instead of produced locally, as in Dubai.
Mechanisation: machinery and better technology mean fewer workers are needed.
Danger and education: primary work is manual and can be dangerous (such as mining); as education improves people prefer other jobs.
Raw materials run out, such as fossil fuels, and climate change and desertification reduce farming jobs.
Globalisation: goods are imported instead of produced locally, as in Dubai.
Factors that shape a country's economy
Natural resources: oil, minerals or fertile land support a strong primary sector; when they run out the economy must shift.
Level of development: LICs rely on primary; middle-income countries industrialise; HICs are dominated by tertiary and quaternary.
Technology: industrialisation adds secondary jobs; automation and AI then reduce them.
Globalisation: trade and outsourcing move manufacturing from HICs to LICs, so HICs grow their services.
Government policy: investment in education and infrastructure, subsidies and tax incentives.
Demographic change: a young population needs schools and jobs; an ageing population needs more healthcare (tertiary).
Level of development: LICs rely on primary; middle-income countries industrialise; HICs are dominated by tertiary and quaternary.
Technology: industrialisation adds secondary jobs; automation and AI then reduce them.
Globalisation: trade and outsourcing move manufacturing from HICs to LICs, so HICs grow their services.
Government policy: investment in education and infrastructure, subsidies and tax incentives.
Demographic change: a young population needs schools and jobs; an ageing population needs more healthcare (tertiary).
Impacts of sector shifts
Developed country (UK): manufacturing and mining declined from the 1960s onwards. Negative: unemployment, derelict land and a negative multiplier in places such as former coalfields. Positive: growth of services, finance, research and cleaner environments.
Emerging country (China): manufacturing grew rapidly from the 1980s. Positive: hundreds of millions of jobs and rising incomes. Negative: air and water pollution, long hours and inequality between coastal cities and rural areas.
See the lesson 'Economic change, impacts and population theories' for more detail.
Emerging country (China): manufacturing grew rapidly from the 1980s. Positive: hundreds of millions of jobs and rising incomes. Negative: air and water pollution, long hours and inequality between coastal cities and rural areas.
See the lesson 'Economic change, impacts and population theories' for more detail.
Explained step by step
A sector shift is when the main type of work in a country changes. The trick is to explain the cause and effect chain, not just list reasons.
Example chain: mechanisation. Tractors and combine harvesters do the work of many people, so fewer farm workers are needed, so people move to towns, leading to more secondary and tertiary jobs.
Example chain: globalisation. Companies in HICs outsource factory work to countries with cheaper labour, so factories close in places like the UK, leading to unemployment in old industrial areas, while service jobs grow.
Impacts differ by country. In the UK, deindustrialisation brought unemployment and derelict land in former coalfields, but also cleaner environments and growth in finance and research. In China, rapid industrialisation created hundreds of millions of jobs and rising incomes, but also serious air and water pollution and inequality between coastal cities and rural areas.
Example chain: mechanisation. Tractors and combine harvesters do the work of many people, so fewer farm workers are needed, so people move to towns, leading to more secondary and tertiary jobs.
Example chain: globalisation. Companies in HICs outsource factory work to countries with cheaper labour, so factories close in places like the UK, leading to unemployment in old industrial areas, while service jobs grow.
Impacts differ by country. In the UK, deindustrialisation brought unemployment and derelict land in former coalfields, but also cleaner environments and growth in finance and research. In China, rapid industrialisation created hundreds of millions of jobs and rising incomes, but also serious air and water pollution and inequality between coastal cities and rural areas.
Common mistakes and exam tips
Listing reasons without developing them: use 'because, therefore, leading to' to turn one reason into a full explained point.
Only giving negatives: impact questions usually need both positive and negative impacts.
Mixing up the two case studies: the UK lost manufacturing (deindustrialisation); China gained it (industrialisation).
Forgetting the named factors: the checklist names raw material availability, globalisation, mechanisation, demographic change and government policy, so learn one example for each.
Vague places: write 'former coalfields in the UK' or 'coastal cities in China', not 'some areas'.
Only giving negatives: impact questions usually need both positive and negative impacts.
Mixing up the two case studies: the UK lost manufacturing (deindustrialisation); China gained it (industrialisation).
Forgetting the named factors: the checklist names raw material availability, globalisation, mechanisation, demographic change and government policy, so learn one example for each.
Vague places: write 'former coalfields in the UK' or 'coastal cities in China', not 'some areas'.
One example for every named factor
Your checklist names five reasons why employment changes. Learn one example for each.
Raw material availability: when a resource runs out, the primary jobs that depended on it go. Your notes give fossil fuels running out, and climate change causing desertification, which cuts jobs for farmers.
Globalisation: goods are imported instead of made locally, as in Dubai; HIC firms outsource factory work to countries such as China.
Mechanisation: tractors, harvesters and factory robots do the work of many people, so fewer workers are needed.
Demographic change: a young population needs schools and jobs; an ageing population needs more healthcare (tertiary).
Government policy: subsidies, tax incentives and investment in education attract particular industries, for example the UK government's support for Nissan in Sunderland.
Exam tip: for each factor, write the cause, then because, therefore, leading to a change in a named sector.
Raw material availability: when a resource runs out, the primary jobs that depended on it go. Your notes give fossil fuels running out, and climate change causing desertification, which cuts jobs for farmers.
Globalisation: goods are imported instead of made locally, as in Dubai; HIC firms outsource factory work to countries such as China.
Mechanisation: tractors, harvesters and factory robots do the work of many people, so fewer workers are needed.
Demographic change: a young population needs schools and jobs; an ageing population needs more healthcare (tertiary).
Government policy: subsidies, tax incentives and investment in education attract particular industries, for example the UK government's support for Nissan in Sunderland.
Exam tip: for each factor, write the cause, then because, therefore, leading to a change in a named sector.
Explain two reasons why the number of people working in the primary sector falls as a country develops.
- Mechanisation: machines such as tractors do the work of many people, so fewer workers are needed.
- Education: as more people are educated they move to better-paid, safer jobs in factories and services.
- This leads to primary employment falling as a share of all jobs.
Answer: Mechanisation and better education move workers out of farming.
Primary jobs fall because of low wages, mechanisation, danger, better education, depleted resources and imports. A country's economy is shaped by resources, development, technology, globalisation, government policy and demographic change. Sector shifts bring gains (new jobs, incomes) and losses (unemployment, pollution).
- Globalisation
- The growing connection between countries through trade, investment, people and information.
- Mean
- Add all the values and divide by how many there are. Example: 3, 5, 6, 8, 9, 11, 12, 14, 15, 18, 21 total 122; 122 / 11 = 11.1 (1 d.p.).
- Climate change
- A long-term change in the Earth's climate, especially the warming since about 1900 caused mainly by extra greenhouse gases.
- Desertification
- The degradation of land in dry areas so that it becomes more desert-like, caused by climate and human activity.
- Negative multiplier
- A downward spiral: job losses mean less spending, so more businesses close and more jobs are lost.
- Emerging country
- A country whose economy is developing quickly, such as India or China.
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2 more questions
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Tractors and combine harvesters are introduced on farms. What happens to farm employment?
- Fewer farm workers are needed
- Many more farm workers are needed
- Farm employment is not affected
- Mining jobs replace farm jobs
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Answer: Fewer farm workers are needed
Mechanisation means machines do the work of many people, reducing farm jobs.
Why have factory jobs fallen in many high-income countries such as the UK?
- Farming has replaced manufacturing
- People in the UK stopped buying goods
- Companies have outsourced manufacturing to countries with cheaper labour
- All factories moved to the UK from abroad
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Answer: Companies have outsourced manufacturing to countries with cheaper labour
Globalisation and outsourcing moved manufacturing abroad, while service jobs grew in HICs.
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Checked by the GCSE-ready editorial team, 23 October 2026. Last updated 2 October 2026. Spotted a mistake? Tell us and we will fix it.