Government intervention in markets: competition policy, the regulation of monopoly and privatised industries, and privatisation.

What this dot point is asking

WJEC wants you to explain how governments intervene to control firms with market power: competition policy, the regulation of monopoly and privatised industries, and privatisation, and to evaluate their effects.

The answer

Competition policy

In the UK, the competition authority can investigate and block or modify mergers that would substantially lessen competition, fine cartels that fix prices or share markets, and act against firms that abuse a dominant position (for example predatory pricing or refusing to supply rivals). The aim is to protect consumers from higher prices, lower output and reduced choice, and to preserve the competitive pressure that drives productive, allocative and dynamic efficiency. Competition policy is the main tool against the harms of monopoly and oligopoly examined in the earlier topics.

Regulation of monopoly and privatised industries

Where a market is a natural monopoly (water and energy networks, rail track), breaking it up would raise costs, so the firm is left intact but regulated. A price cap of the form RPI minus X limits price rises to inflation minus an efficiency factor, squeezing the firm to cut costs and passing the gains to consumers, while allowing it to cover costs and invest. Regulators also set service-quality standards and can require investment in the network. The danger is regulatory capture, where the regulator comes to act in the interest of the firm rather than consumers, and the difficulty of setting the right X, both of which can cause government failure.

Privatisation and nationalisation

The case for privatisation is that the profit motive and competition raise efficiency and cut X-inefficiency, that it widens share ownership, raises revenue for the government, and frees firms from political interference and gives access to private capital. The case against is that a state monopoly may simply become a private monopoly that needs regulation anyway, that short-term profit may be put before service quality, long-term investment or safety, that natural monopolies cannot be made genuinely competitive, and that important social objectives (universal service, equity) may be neglected. So privatisation tends to raise efficiency where genuine competition follows, but where it does not, regulation is essential, which is why privatisation and regulation usually go together.

Examples in context

Example 1. UK utility regulators and price caps. Privatised UK utilities are overseen by sector regulators (for water, energy and rail) that use RPI minus X style price controls, service-quality targets and investment requirements to protect consumers from monopoly pricing. The recurring debates over water company profits, leakage and investment, and over energy price caps, show both the rationale for regulating natural monopolies and the risk that regulation is too weak or captured, allowing the exam-favoured evaluation of effectiveness.

Example 2. Merger control and consumer protection. The UK competition authority has blocked or required changes to mergers that would have substantially reduced competition, for example in groceries and telecoms, on the grounds that they would raise prices or reduce choice. These decisions illustrate competition policy in action, protecting the competitive pressure that drives efficiency, and the difficult judgement between the cost savings (economies of scale) a merger might bring and the loss of competition it would cause.

Try this

Q1. State two things a competition authority can do to promote competition. [2 marks]

• Cue. Any two of: block or modify anti-competitive mergers, fine cartels that fix prices or share markets, act against the abuse of a dominant position, and promote competitive markets.

Q2. Explain why a natural monopoly is regulated rather than broken up. [3 marks]

• Cue. A natural monopoly has such large economies of scale that one firm has the lowest average cost, so splitting it up would raise costs; instead it is regulated (price caps, performance targets) to protect consumers while keeping the cost advantage.