Pearson Edexcel IGCSE Economics: Business Economics — Practice Questions (4EC1)

These are original questions written for Marlbridge, for revision and practice on this content. They are not reproduced past-paper questions, and they do not replicate the exam’s exact structure, question count or mark tariffs — examination boards hold copyright in their own papers. Use these alongside the official past papers available free from your board.

Related: Business economics study guide

This specification’s papers are not divided into lettered sections. Instead, each paper consists of four compulsory questions, each worth twenty marks, with sub-questions mixing short-answer, calculation and open-ended items. This paper follows that structure.

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Question 1 — Factors of production and productivity

(a) State the four factors of production and give a reward associated with each. [4]

(b) Define productivity and state one factor that could improve labour productivity. [3]

(c) Explain one way in which capital, rather than labour, could be used to increase output in a factory. [3]

(d) State two reasons why a factor of production might be geographically immobile. [4]

(e) Explain the difference between production and productivity. [3]

(f) State one factor, other than training or education, that could improve labour productivity. [3]

Question 2 — Division of labour and business organisation

(a) Explain two advantages and one disadvantage of division of labour for a business. [6]

(b) Explain what is meant by “the division of labour”, using an example. [3]

(c) State two examples of specialisation between workers in a manufacturing business. [4]

(d) Explain one reason why division of labour can increase output per worker. [3]

(e) Explain one limitation of division of labour for the wider economy, rather than for an individual worker. [4]

Question 3 — Costs and revenue

(a) A firm produces 2,000 units, selling each for $40. Its total fixed costs are $15,000 and its total variable costs are $45,000. Calculate the firm’s total revenue, total costs, profit and average total cost. [6]

(b) Define average fixed cost, and calculate it for the firm in (a). [3]

(c) State the formula for average variable cost, and calculate it for the firm in (a). [3]

(d) Explain the difference between a fixed cost and a variable cost, giving one example of each. [4]

(e) Explain what would happen to the firm’s average fixed cost if it increased output with no change in total fixed costs. [4]

Question 4 — Economies and diseconomies of scale

(a) Explain the difference between internal economies of scale and external economies of scale, giving one example of each. [6]

(b) With reference to a long-run average cost (LRAC) curve, explain what happens to a firm’s average costs as it grows too large. [5]

(c) State two examples of internal diseconomies of scale. [4]

(d) Explain one reason why a small firm might survive alongside much larger competitors in the same industry. [5]

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Answers

1. (a) Land — rent [1]; Labour — wages [1]; Capital — interest [1]; Enterprise — profit [1].

(b) Productivity is output produced per unit of input (e.g. per worker) in a given time period [1] [1]. Labour productivity could be improved through training or education [1] (or migration of skilled workers, or improved working conditions).

(c) Replacing manual tasks with machinery or automated equipment [1] allows more units to be produced in the same time, or the same output with fewer workers [1], since capital does not tire and can often operate continuously [1].

(d) Any two: land cannot move at all [1] [1]; a worker may be unwilling to relocate due to family ties or the cost of moving [1] [1]; specialised machinery may only be usable in one location or industry [1] [1].

(e) Production is the total quantity of output produced [1] [1]; productivity is output per unit of input (e.g. per worker), so production can rise without productivity rising if more workers are simply added [1].

(f) Any one: improved working conditions [3]; investment in better machinery (capital) for workers to use [3]; incentive schemes such as performance-related pay [3].

2. (a) Advantages: workers become highly skilled and efficient at their specific task, increasing output [1] [1]; less time is lost switching between tasks, since each worker focuses on one job [1] [1]. Disadvantage: workers can become bored performing the same repetitive task, which may reduce motivation and increase errors or absenteeism [1] [1].

(b) The division of labour is breaking down the production process into separate tasks, with each worker specialising in one part of it [1] [1] — for example, on a car assembly line, one worker fits doors while another fits engines, rather than each worker building a whole car alone [1].

(c) Any two, e.g. one worker operating machinery, another assembling components, another carrying out quality inspection, another packaging the finished product [1] [1] [1] [1].

(d) Workers who repeat the same task become faster and more skilled at it [1], reducing the time needed per unit and increasing output per worker over a given period [1], compared with one worker trying to complete every stage of production alone [1].

(e) Over-specialisation can make the wider economy more vulnerable to disruption, since a single break in one specialised stage (e.g. a strike or a shortage of one component) can halt production across an entire supply chain [1] [1], and can leave workers with narrow, less transferable skills if their specific task becomes automated or is no longer needed [1] [1].

3. (a)

Total revenue     = 2,000 x $40 = $80,000
Total costs        = $15,000 + $45,000 = $60,000
Profit             = $80,000 - $60,000 = $20,000
Average total cost = $60,000 / 2,000 = $30 per unit

[1] mark for each of total revenue, total costs, profit, and average total cost calculated correctly, [1] [1] for correct method shown.

(b) Average fixed cost is total fixed cost divided by output [1] [1]. For this firm, AFC = $15,000 ÷ 2,000 = $7.50 per unit [1].

(c) Average variable cost = total variable cost ÷ output [1] [1]. For this firm, AVC = $45,000 ÷ 2,000 = $22.50 per unit [1].

(d) A fixed cost does not change with the level of output, e.g. rent on a factory [1] [1]. A variable cost changes directly with the level of output, e.g. raw materials [1] [1].

(e) Because total fixed cost is spread over a larger number of units, average fixed cost would fall [1] [1] — this is one of the mechanisms behind internal economies of scale [1], even though total fixed cost itself has not changed [1].

4. (a) Internal economies of scale arise from a single firm’s own growth — for example, bulk-buying raw materials at a discount as order size increases [1] [1] [1]. External economies of scale arise from the whole industry growing in one area — for example, a local pool of skilled labour developing because many similar firms are based nearby, benefiting every firm in the area [1] [1] [1].

(b) As a firm grows, average costs initially fall as it captures economies of scale (e.g. bulk buying, specialisation) [1] [1]. Average costs reach a minimum at the most efficient scale of production [1]. If the firm continues to grow beyond this point, diseconomies of scale set in — for example, communication problems or difficulty coordinating a very large workforce — causing average costs to rise again [1] [1].

(c) Any two: communication problems as information passes through more management layers [1] [1]; coordination difficulties between departments or sites [1] [1]; weakened staff motivation as workers feel more distant from decision-making [1] [1].

(d) A small firm may survive by occupying a niche market that large firms find unprofitable to serve, such as highly customised or specialist products [1] [1], where the personal service or flexibility a small firm can offer is valued by customers more than the lower unit costs a large firm could achieve through economies of scale [1] [1] [1].

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Exam technique for this topic

Calculation questions like Question 3 are marked on method as well as final answer, so always show each step (total revenue, then total costs, then profit, then average cost) as a separate labelled line rather than jumping straight to a final number — a correct method with a minor arithmetic slip usually earns more marks than an unexplained final answer, right or wrong. When asked to distinguish internal from external economies of scale (as in Question 4), always attach a concrete example to each side of the distinction, since a definition alone without an example rarely earns full marks on this specification. For LRAC-curve questions, describe the curve’s shape in three stages — falling (economies), minimum (efficient scale), rising (diseconomies) — rather than jumping straight to “costs rise if a firm gets too big” without explaining the economies-of-scale stage that comes first.

Practising the full profit calculation chain

Question 3’s calculation chain — total revenue, total costs, profit, then average total cost — recurs across many exam papers in slightly different framings, so it is worth practising with several different sets of numbers until each step is automatic. Notice that average total cost can also be found by adding average fixed cost and average variable cost separately, which provides a useful cross-check: recalculating the same answer via a second method is a reliable way to catch an arithmetic slip before submitting a final answer, particularly in a calculation-heavy question worth several marks.

Where marks are usually lost

• Confusing total costs with average costs when a calculation question gives one and asks for the other.
• Listing economies of scale without distinguishing which are internal (firm-specific) and which are external (industry-wide).
• Giving only advantages of division of labour when the question explicitly asks for both an advantage and a disadvantage.
• Mislabelling economic sectors, for example describing a factory as tertiary rather than secondary.
• Naming an economy of scale without stating whether it is internal or external, when the question specifically asks for the distinction.
• Forgetting that division of labour, like most business economics concepts on this specification, requires both a benefit and a drawback to be discussed when a question asks for evaluation rather than description alone.

Linking this topic to the rest of the specification

Business Economics doesn’t stand alone: the cost and revenue concepts introduced here (1.2.3) are the foundation for later sub-topics on competition, where firms with different cost structures compete for market share, and for government intervention, where policies such as subsidies or taxes are analysed partly through their effect on a firm’s costs. A candidate who has secured fluency in calculating and interpreting total and average costs here will find those later sub-topics considerably more accessible, since the underlying cost concepts recur throughout the specification rather than being confined to this one topic.