What is wage determination in a labour market?

Wages are primarily determined by the forces of supply and demand in a labour market. Where labour demand is high relative to supply, wages rise; where supply exceeds demand, wages fall. The equilibrium wage is where the quantity of labour supplied equals the quantity demanded.

Market power distorts this outcome. A monopsony employer — a single buyer of labour — can suppress wages below the competitive equilibrium by restricting employment. The NHS acts as a near-monopsonist buyer of nurses in the UK, giving it significant wage-setting power.

Trade unions counter monopsony by collectively bargaining for higher wages. Minimum wage legislation also sets a wage floor — the UK National Living Wage rose to £11.44 per hour in April 2024, directly affecting low-paid sectors such as retail and hospitality.

1. →(4 marks) Define the term 'monopsony' and explain one effect it has on wages in a labour market.
2. →(8 marks) Explain two factors that could cause the demand for labour to increase in the UK economy.
3. →(12 marks) Analyse how a trade union might affect wage determination and employment levels in a labour market.
4. →(20 marks) Evaluate the view that introducing a higher National Minimum Wage will always lead to unemployment in low-paid labour markets.
5. →(25 marks) "Monopsony power is the greatest obstacle to fair wage determination in UK labour markets." Assess this view.

• →Always define the wage determination mechanism in your opening sentence — examiners award this definition mark even if your subsequent analysis contains errors.
• →Avoid drawing supply and demand diagrams without labelling the wage rate (W) and quantity of labour (Q) on the axes, as unlabelled diagrams score zero for diagram marks.
• →Include a monopsony diagram when evaluating employer market power — showing the marginal cost of labour above the supply curve distinguishes higher-band responses from mid-band ones.
• →Show the impact of a minimum wage above equilibrium on both wages and employment levels, as many students explain the wage effect but neglect the potential unemployment effect.
• →Define marginal revenue product (MRP) early in extended answers on labour demand, since examiners expect this theoretical foundation before any analysis of wage changes.

Marginal Revenue Product (MRP): The additional revenue a firm earns by employing one more unit of labour, which represents the firm's demand curve for labour.

Monopsony: A labour market in which there is a single dominant buyer of labour, giving that employer the power to set wages below the competitive equilibrium.

Trade Union: An organised association of workers that collectively bargains with employers to secure higher wages, better conditions, or greater job security for its members.

Wage Elasticity of Labour Supply: A measure of how responsive the quantity of labour supplied is to a change in the wage rate.

National Minimum Wage: A legally enforced wage floor set by the UK government, below which employers cannot pay workers, currently differentiated by age group.

Bilateral Monopoly: A labour market structure in which a monopsonist employer faces a monopoly supplier of labour in the form of a trade union, producing an indeterminate wage outcome between the two parties' preferred levels.