OxfordAQA International A Level Economics
OxfordAQA International A Level Economics 3.1.4 Competitive and Concentrated Markets Exam Questions
Free OxfordAQA International A Level Economics revision for 3.1.4 Competitive and Concentrated Markets: what you need to know, common mistakes and exam-style questions with answers. Covers market structures, concentration ratios, objectives of firms, competitive markets, monopoly and monopoly power and the competitive market process.
Practise 3.1.4 Competitive and Concentrated Markets with past papers
Once you have learnt this topic, find the 3.1.4 Competitive and Concentrated Markets questions in real OxfordAQA International A Level Economics past papers and mark them with the mark scheme. Doing lots of real questions is the quickest way to learn how examiners ask about each idea.
About OxfordAQA International A Level Economics 3.1.4 Competitive and Concentrated Markets
Competitive and concentrated markets is the AS introduction to market structure in Unit 1 of the OxfordAQA International Economics course. You compare competitive markets with concentrated ones, calculate and interpret concentration ratios, and consider why firms may pursue objectives other than profit. You study how competition affects prices, choice and efficiency, and how a monopoly or firm with monopoly power can raise prices and restrict output, while also looking at possible benefits. This work is developed with full cost and revenue diagrams in the A2 topic on perfect competition, imperfect competition and monopoly. Examiners commonly ask for concentration ratio calculations and balanced evaluation of monopoly power.
What you need to know
- 3.1.4.1 Market structures Market structures range from highly competitive markets with many firms to monopoly. An n-firm concentration ratio is the combined market share of the n largest firms.
- 3.1.4.2 Objectives of firms Profit maximisation is assumed in traditional theory, but firms may aim for growth, sales or revenue, survival or social goals. The divorce of ownership from control can lead managers to pursue their own objectives.
- 3.1.4.3 Competitive markets Many firms selling similar products with easy entry keep prices close to cost, give consumers choice and push firms to be efficient and innovative.
- 3.1.4.4 Monopoly and monopoly power A pure monopoly is a single supplier; monopoly power exists where a firm can influence price. Sources include barriers to entry, advertising, product differentiation and the number of competitors. Monopoly may lead to higher prices and lower output, but economies of scale and funds for innovation are possible benefits.
- 3.1.4.5 The competitive market process Competition drives firms to cut costs, improve products and innovate. New entrants are attracted by profits, which pushes prices down over time.
Common mistakes in 3.1.4 Competitive and Concentrated Markets
- Treating monopoly as always bad. Strong answers weigh higher prices against possible economies of scale and investment in research.
- Calculating a concentration ratio by adding the wrong number of firms. A 3-firm ratio adds the three largest market shares only.
- Assuming all firms aim only to maximise profit. Many have other objectives, especially where owners and managers are different people.
- Saying that barriers to entry are always legal. Many come from scale, brand loyalty or control of resources.
- Describing a market as competitive just because there are several firms. Look at concentration, entry barriers and product differentiation.
Try three 3.1.4 Competitive and Concentrated Markets exam-style questions
1. The market shares of the five largest firms in a market are 28%, 19%, 12%, 9% and 6%. Calculate the 3-firm concentration ratio. (1 mark)
Show the mark scheme answer
28 + 19 + 12 = 59%.
2. Explain two possible reasons why a firm might not aim to maximise profit. (4 marks)
Show the mark scheme answer
Managers may aim to maximise sales or growth because their pay and status depend on firm size (divorce of ownership and control); a new firm may focus on survival or market share to establish itself; firms may pursue social or environmental objectives (any two, explained).
3. Assess whether consumers always lose out when a market is dominated by a monopoly. (10 marks)
Show the mark scheme answer
A strong answer would explain how barriers to entry let a monopoly restrict output and raise price above the competitive level, reducing choice and possibly quality; then evaluate that large scale can lower average costs and allow lower prices, that supernormal profits can fund innovation, and that the threat of new entry or regulation can limit abuse; and reach a judgement that depends on the size of barriers and the industry.
3.1.4 Competitive and Concentrated Markets FAQs
What does OxfordAQA International A Level Economics 3.1.4 Competitive and Concentrated Markets cover?
It covers market structures, concentration ratios, the objectives of firms, competitive markets, monopoly and monopoly power, and the competitive market process.
Which unit is 3.1.4 Competitive and Concentrated Markets examined in?
It is examined in Unit 1 (EC01), The operation of markets, market failure and the role of government, an International AS unit with multiple choice and data response questions. Units 3 and 4 are synoptic, so the ideas can also be used there.
How do I evaluate monopoly in 3.1.4?
Set out the costs to consumers (higher prices, less choice, possible inefficiency) and then the possible benefits (economies of scale, innovation). Conclude by saying what the outcome depends on, such as barriers to entry or regulation.
