Changes in Economic Sectors (Edexcel IGCSE Geography): Revision Note

Exam code: 4GE1

Bridgette Barrett

Written by: Bridgette Barrett

Reviewed by: Jenna Quinn

Updated on

Causes of change in employment

  • As countries develop, the number of people employed in each economic sector changes 

    • This can be seen in the Clark-Fisher Model or pie charts

Graph showing employment sectors over time: pre-industrial, industrial, post-industrial. Primary and secondary decline, tertiary rises, quaternary minimal.
Clarke-Fisher Model

How levels of development affect employment in different sectors

  • In developing countries, such as Kenya, more people are employed in the primary sector because: 

    • A significant percentage of the rural population are subsistence farmers

    • The countries depend on exporting raw materials to developed and emerging countries to gain income

  • In emerging countries, such as China, more people are employed in secondary economic activities

  • This is because:

    • Factories are located in emerging countries due to lower costs 

    • More raw materials may be available in these countries

    • Government policies aim to attract companies to locate there

  • In developed countries, such as the UK, more people are employed in tertiary sector activities:

    • Education levels are higher, so people want tertiary sector jobs, which are, on average, higher paid than secondary and primary jobs

    • Deindustrialisation means there are fewer jobs in secondary economic activities

    • Mechanisation means there are fewer jobs in primary and secondary economic activities

    • There is a higher demand for services because people have more disposable income

Three pie charts show employment sectors in Germany, China, and Kenya, highlighting primary, secondary, and tertiary percentages.
Employment by economic sector

Summary of the causes of changing employment in economic sectors

  • The main factors which affect the number of people employed in the different economic sectors include:

    • Availability of raw materials

    • Globalisation

    • Technology

    • Demographic changes

    • Government policies

Availability of raw materials

  • Raw materials may have run out or be economically unviable to obtain

  • Crop production and livestock may be reduced due to drought, flood, pest/disease or soil erosion

  • Improvements in technology may reduce the amounts of raw materials needed

Globalisation

  • Transnational corporations (TNCs) have factories and offices in many countries 

  • Lower costs tend to be in developing and emerging countries 

  • The internet and improved communication mean that service activities such as call centres can be located anywhere in the world

  • Industries such as textiles and steel manufacturing are increasingly located in emerging countries

Technology

  • There are fewer jobs in farming, mining and many factories due to mechanisation

  • The Internet means companies can manage factories and offices located in many different countries

  • Improvements in transport have reduced the friction of distance

Demographic change

  • An increasing population means that there is a greater demand for products and services 

  • People have more disposable income to spend on leisure and other services

  • The demand for goods and services is affected by the age structure of the population

  • An increasing population means there are more workers available

Government policies

  • Government policies target particular economic activities to locate in their country using :

    • Tax incentives

    • infrastructure improvements (new railways, airports)

    • grants/cheap rent

  • International treaties impact what countries can trade

  • In communist countries, governments have much more control over industry types and location

Examiner Tips and Tricks

For 3-mark 'suggest' or 'explain' questions regarding changes in employment sectors (such as the secondary sector):

  • Identify the change first: Start by identifying a specific change in employment that is explicitly shown in the provided resource

  • Use "double development": These questions can be challenging because they require you to develop your ideas twice to earn full marks.

    • For example, identify a decrease in a sector, link it to a broader geographical concept (like a global shift in manufacturing), and then further develop the point by suggesting where the employment has moved.

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Bridgette Barrett

Author: Bridgette Barrett

Expertise: Geography, History, Religious Studies & Environmental Studies Subject Lead

After graduating with a degree in Geography, Bridgette completed a PGCE over 30 years ago. She later gained an MA Learning, Technology and Education from the University of Nottingham focussing on online learning. At a time when the study of geography has never been more important, Bridgette is passionate about creating content which supports students in achieving their potential in geography and builds their confidence.

Jenna Quinn

Reviewer: Jenna Quinn

Expertise: Head of Humanities & Social Science

Jenna studied at Cardiff University before training to become a science teacher at the University of Bath specialising in Biology (although she loves teaching all three sciences at GCSE level!). Teaching is her passion, and with 10 years experience teaching across a wide range of specifications – from GCSE and A Level Biology in the UK to IGCSE and IB Biology internationally – she knows what is required to pass those Biology exams.