Types of Markets: Competition & Monopoly
Microeconomic Decision Makers
A competitive market is one in which many firms compete to sell a similar product, so no single firm can control the price. Each firm has to accept roughly the price set by the market as a whole.
Characteristics of a competitive market
- A large number of firms, each with a small share of the market.
- Similar products, so consumers can switch easily between sellers.
- Freedom of entry and exit — new firms can join the market when profits are attractive, and leave when they make losses.
- Price competition — because buyers can switch, no firm can charge much more than its rivals.
Effect of many firms on price, quality, choice and profit
| Feature | Effect in a competitive market |
|---|---|
| Price | Lower — firms compete on price, and consumers can switch to a cheaper rival, so prices are kept close to costs. |
| Quality | Higher — firms must keep improving to win customers from rivals. |
| Choice | Wider — many firms offer a range of products to suit different needs. |
| Profit | Lower per firm — competition limits how much each firm can charge above its costs. |
Advantages of competitive markets
- Lower prices for consumers, because firms undercut one another and consumers can switch between producers.
- Better quality and more innovation, because firms must improve to keep customers.
- More choice — a greater variety of products, and products that meet different needs (for example, cars designed for older drivers).
- Efficiency — the pressure to keep costs down forces firms to use resources well, and consumer power is high because buyers can influence the market by switching.
Disadvantages of competitive markets
- Small firms may miss out on economies of scale. With many firms each producing a small quantity, none may be large enough to enjoy the lower average costs that a big producer can reach. Average costs, and therefore prices, can end up higher than they would be with fewer, larger firms.
- Less funding for research. Small firms making low profits may have fewer funds to invest in improving quality or developing new technology.
- Wasteful duplication. Many firms doing similar things (advertising, distribution) can duplicate effort and resources.
Common exam question
How the number of firms affects consumers
Question: Analyse how consumers gain from competition or lose when firms close, or discuss whether more or fewer firms benefit them (6–8 marks).
Asked in 4 of the 11 structured papers (three as the 6-mark Analyse, one as the Discuss); the specimen mark scheme sets the Discuss. In the Analyse, each effect and each link explaining it earns a mark. Competition brings lower prices, as customers can switch; better quality and innovation, as firms must be efficient; more choice; and more consumer power, as firms respond to buyers. Fewer firms reverse each chain: more monopoly power, so higher prices, less innovation, lower quality and less choice. One scheme allows one mark in total for higher prices, so develop the others.
In the Discuss, fewer, larger firms gain economies of scale, cutting costs and prices, and can fund quality from profit, but risk diseconomies of scale. Level 3 needs both sides developed; a one-sided answer cannot rise above Level 2 (3–5).