Syllabus Edition
First teaching 2025
First exams 2027
Changing employment structures (Cambridge (CIE) IGCSE Geography): Revision Note
Exam code: 0460 & 0976
Changing employment structure
Employment structures change as economies develop
The primary sector dominates in the pre-industrial period, while the secondary and tertiary sectors steadily grow
This structure is generally found in low-income countries (LICs), as they have low-cost production and low-skilled jobs
As economies grow, the reliance on the primary sector for jobs begins to decline
LICs such as Ethiopia, Afghanistan and Madagascar are in this stage
During the industrial phase, employment in the secondary sector increases as manufacturing shifts from high-income countries (HICs) to emerging, low-cost economies
This is known as the global industrial shift
The primary sector continues to decrease and the tertiary sector increases
Medium-income countries (MICs) such as China and India have moved into this stage
In the post-industrial phase, the tertiary and quaternary sectors increase whilst the secondary and primary sectors decrease
The tertiary sector dominates employment and GDP in the post-industrial period
High-income countries such as Germany, Australia and the USA are in this stage

As an economy advances, the proportion of people employed in each sector changes
Places like the UK and the USA are ‘post-industrial societies’, where most work in the tertiary or quaternary sectors
Places such as China and India are ‘industrial societies’, where many people work in the secondary sector
Bolivia and Mozambique are ‘pre-industrial societies’, where most people work in the primary sector
The Clark Fisher Sector Model above illustrates these trends, as do the examples below:

Examiner Tips and Tricks
You should be able to identify a country's stage of development by examining a pie chart or graph of the economic sectors.
A low-income country will be dominated by primary economic activities, an middle-income country is likely to have fairly equal amounts of each type of economic sector employment, and finally, a high-income country will be dominated by tertiary economic activities.
Causes of changes over time
There are several reasons for the change in percentages employed in each sector:
Increasing mechanisation in agriculture leads to a decrease in the number of jobs available
People moving to urban areas to find jobs in secondary and tertiary sectors
Increasing mechanisation and global changes then lead to a decrease in secondary employment in some countries - this is known as deindustrialisation
Technological improvements lead to an increase in tertiary and quaternary employment
International corporations often set up factories in LICs where land and labour costs are lower
You've read 0 of your 5 free revision notes this week
Unlock more, it's free!
Did this page help you?