Explain wages, labour mobility and division of labour
Connect occupation choices and wage differences with labour demand, bargaining, mobility and specialisation.
Section 3.3 · Workers
Cambridge IGCSE Economics 0455 / IGCSE (9–1) Economics 0987, 2027–2029 Version 1. Apply each model to the stated evidence and qualify conclusions where effects depend on context. Practice is original and self-checked; it is not a Cambridge paper, mark scheme or official grade.
Before you begin
- No prior economics study is assumed. Read the scenario for the decision-maker, the market or economy involved, the time period and the evidence supplied.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
Why is labour demand called derived demand?
What you will learn
- Explain wage and non-wage occupation factors
- Analyse wage determination and differences
- Assess labour mobility and division of labour
Wages reflect labour-market conditions and bargaining
An occupation choice can depend on wages, job security, conditions, interest, location and training. Labour demand is derived from demand for the output workers help produce; labour supply depends on workers willing and able to take jobs.
Wage differences can reflect skills, demand and supply, bargaining strength, policy, sector and discrimination. A union may strengthen bargaining, but outcomes also depend on employer alternatives and labour-market conditions. A minimum wage can raise pay for covered workers and may affect employment depending on its level and market response. A standard labour-market diagram places wage on the vertical axis and labour on the horizontal axis; downward-sloping labour demand and upward-sloping labour supply meet at the equilibrium wage and employment. In this simple model, a minimum wage above equilibrium may leave labour supplied greater than labour demanded; actual effects depend on coverage, enforcement and market responses.
Mobility and specialisation bring trade-offs
Occupational mobility means moving between types of work; geographical mobility means moving location. Training, housing, family ties, information and recognition of qualifications can affect mobility.
Division of labour assigns workers specialised tasks. It can raise skill and output, but repetitive work, coordination needs or dependence on one stage can create costs. Explain the particular context rather than claiming a universal effect.
Pause and explain
A minimum wage is set above the previous equilibrium wage. What can happen?
Worked example
A hospital needs more nurses, but training takes years and housing near the hospital is costly. Explain two influences on wages or labour supply.
Show the worked solution
- Demand for nurses can rise with the service need.
- Training limits short-run occupational mobility.
- Housing costs can limit geographical supply.
Answer Higher demand may put upward pressure on wages, while training time and housing costs restrict how quickly labour supply responds. The final wage depends on policy, budgets and worker alternatives.
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Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
A worker chooses between a higher-paid remote job and a lower-paid local job with predictable hours. Identify two non-wage factors that may matter.
Give me a hint
Look beyond the pay rate to conditions and personal constraints.
Compare my reasoning
- Predictable hours may support family or study commitments.
- Remote work can affect travel time or isolation.
- The worker compares these with pay and career prospects.
Predictable hours and travel time are non-wage factors; the worker may also value job security, career development or social contact. The best choice depends on personal priorities.
Look for these in your work
- Two non-wage factors stated
- Trade-off linked
- Decision contextualized
A new factory raises demand for technicians, but local training is limited. Explain how wages and mobility may respond in the short and longer run.
Give me a hint
Separate immediate supply from training and relocation over time.
Compare my reasoning
- Short-run labour supply may be inelastic.
- Higher wages may attract workers from other jobs or regions.
- Training can expand qualified supply later.
In the short run, scarce qualified technicians may command higher wages. Over time, training or worker movement may increase labour supply, though relocation and training have costs.
Look for these in your work
- Time periods distinguished
- Wage pressure explained
- Mobility mechanism stated
A factory divides assembly into five repetitive tasks. Explain one possible productivity benefit and one worker or coordination cost.
Give me a hint
Consider learning by repetition and reliance between stages.
Compare my reasoning
- Repeated tasks can build speed and skill.
- Workers may find repetitive tasks less motivating.
- A delay at one stage can affect the whole production line.
Specialisation can raise speed through repetition, but repetitive work may reduce motivation and a bottleneck can interrupt later stages. The net effect depends on design and management.
Look for these in your work
- Benefit explained
- Cost explained
- Net effect qualified
Common mistakes
- Assuming wage is the only occupation factor
- Treating every wage difference as discrimination or as fully justified
- Assuming specialisation improves productivity without coordination costs
What can you explain now?
What is one factor that can limit geographical labour mobility?
Compare with the explanation
Housing, family ties or relocation costs
Moving location can require substantial adjustment.
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Make it stick
What is one factor that can limit geographical labour mobility?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.