Wage determination in competitive and non-competitive markets

Written by: Umar Bostan
Updated on21 November 2025
Labour Market Equilibrium
In a perfectly competitive labour market, equilibrium is determined by the intersection of the Demand for Labour (DL) and the Supply of Labour (SL).
Understanding of Current Labour Market Issues
Current labour market issues often relate to market failures, structural changes, and inequalities. Examples include:
Skills Shortages/Skills Gaps: A mismatch between the skills demanded by employers and the skills possessed by the workforce (occupational immobility). This leads to high wages in certain skilled sectors and unemployment in low-skilled sectors.
Youth and Structural Unemployment: Youth unemployment often remains higher than the average, while structural unemployment persists due to long-term shifts in the economy (e.g., de-industrialisation or automation).
The Gig Economy: The rise of self-employment and short-term contracts, which offers flexibility but can lead to worker exploitation, low pay, and fewer employment rights.
Real Wage Growth and Inflation: Periods where wage increases lag behind inflation, resulting in a fall in the real value of pay and a potential reduction in the standard of living.
Wage Inequality (Differentials): Significant disparities in earnings, such as the gap between CEO pay and average worker pay, or the persistent gender pay gap.
Government Intervention in the Labour Market
Governments intervene to correct market failure (e.g., monopsony exploitation) and achieve equity goals (e.g., reducing poverty).
Minimum Wages
A legally imposed floor set above the free market equilibrium wage W* to protect low-paid workers.
The graph below shows the impact of the minimum wage imposed. At the minimum wage set above the W* represented by W min, the labor market sees a shortage of labor demand, and an excess supply of labor. The difference can be calculated from the horizontal distance between S min and D min.
Maximum Wage
A legally imposed ceiling set below the free market equilibrium wage W*, often proposed for very high earners (e.g., CEOs) to reduce inequality.
The graph below shows impact of such imposition. At this point W max, the demand of labor is greater than the supply of labor, which creates a labor shortage in the market.
Public Sector Wage Setting
The government acts as a major employer (e.g., NHS, education) and its wage setting decisions can influence the overall labour market.
Monopsony Power: In some sectors, the government is the dominant employer and can use its monopsony power to set wages lower than in a competitive market.
Wage Restraint/Capping: Limiting public sector wage rises to control inflation or reduce public spending. This can lead to labour shortages in public services.
Comparability: Setting public sector wages by comparing them to similar private sector jobs to ensure fairness.
Policies to Tackle Labour Market Immobility
Immobility causes market failure by preventing the efficient allocation of labour, leading to both excess supply and demand in different markets.
Occupational Immobility
Difficulty for workers to move between jobs due to a lack of transferable skills or qualifications.
Solution: Improved Education and Training (Supply-Side): Subsidies for vocational training and apprenticeships to increase the skills base.
Geographical Immobility
Difficulty for workers to move between regions for work, often due to high housing costs, family ties, or social differences.
Solution: Housing Policies: Building more affordable housing in high-demand areas. Relocation Subsidies: Financial help for moving costs.
The Significance of the Elasticity of Demand for Labour and the Elasticity of Supply of Labour
Elasticity of Demand for Labour (PED L)
Measures the responsiveness of the quantity of labour demanded to a change in the wage rate.
Significance: Determines the potential job losses from a wage increase (e.g., minimum wage or trade union action).
Inelastic DL (e.g., highly skilled workers): A wage rise leads to a less than proportionate fall in employment. Firms are willing to pay more as substitutes are difficult. Job losses are minimal.
Elastic DL (e.g., low-skilled workers): A wage rise leads to a more than proportionate fall in employment. Firms can easily substitute labour with capital or other labour. Job losses are significant.
Determinants (The Marshall-Lerner Conditions for Labour):
PED of the final product: If the product demand is inelastic, firms can pass on higher wages as higher prices, so DL is more inelastic.
Proportion of labour cost to total cost: If labour is a small cost, a wage rise has little impact on total costs, so DL is inelastic.
Ease of factor substitution: If capital can easily replace labour, DL is more elastic.
Time period: DL is more elastic in the long run as firms have more time to substitute capital for labour.
Elasticity of Supply of Labour (PES L)
Measures the responsiveness of the quantity of labour supplied to a change in the wage rate.
Significance: Determines how much a wage increase is necessary to attract new workers to a particular occupation or industry.
Inelastic SL(e.g., doctors): A wage rise leads to a less than proportionate increase in labour supplied. A large wage increase is needed to recruit a few extra workers.
Elastic SL (e.g., shop workers): A wage rise leads to a more than proportionate increase in labour supplied. A small wage increase attracts many new workers.
Determinants:
Skill level/Training period: Highly skilled jobs with long training periods have more inelastic supply.
Geographical and occupational mobility: Low mobility makes supply inelastic.
Non-monetary benefits: Jobs with good non-wage benefits or a strong sense of vocation (e.g., nursing) may have relatively inelastic supply.
Time period: Supply is more elastic in the long run as people can acquire new skills and training.
Teacher Information
Flashcards
Labour Market Equilibrium
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Quizzes
In a perfectly competitive labour market, the equilibrium wage rate is determined by the intersection of:
- A.Marginal Cost and Marginal Revenue
- B.The Average Wage Rate and the Inflation Rate
- C.The Demand for Labour and the Supply of Labour
- D.Government Regulations and Trade Union Power
Choose your answer
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