2023 CCEA GCSE Economics 4410 Practice Paper with Answers

Inflation is defined as a sustained increase in the general (average) level of prices of goods and services in an economy over a period of time, resulting in a fall in the purchasing power of money.

[1] basic idea of a rise in prices; [1] development, e.g. reference to 'sustained'/'general level' rather than a single price rising, or reference to falling purchasing power. Maximum [2].

Unemployment refers to people who are of working age, capable of working and actively seeking employment, but who are currently without a job.

[1] basic idea of people without a job; [1] development, e.g. reference to being of working age/able and willing to work/actively seeking work. Maximum [2].

An index number is a way of presenting statistical data by expressing values relative to a chosen base year, which is usually given a value of 100; values in other years are then expressed relative to this base, making it easy to see and compare percentage changes over time.

[1] basic idea of data expressed relative to a base value/year; [1] development, e.g. reference to the base year usually being 100, or the purpose being easy comparison of change over time. Maximum [2].

Factor 1 - the interest rate offered: a saver should compare the interest rates offered by different accounts/providers, since a higher interest rate means their savings will grow more over time, giving a better return. Factor 2 - access to the money: savers need to consider how easily they can withdraw their money if needed; instant-access accounts allow withdrawals at any time (useful for an emergency fund) but often pay lower interest, while fixed-term or notice accounts restrict access (or charge a penalty for early withdrawal) but typically offer a higher interest rate in return, so are more suitable for money not needed in the short term. Other valid factors: whether the account is protected under the Financial Services Compensation Scheme; any account fees or minimum balance requirements.

[1] identification + [1] explanation for each of two valid factors, maximum [4] (e.g. interest rate; access/withdrawal terms; safety/protection of savings; fees/minimum balance).

Effect 1: when the pound strengthens (appreciates), it takes more foreign currency to buy one pound, so from a foreign buyer's perspective, UK goods priced in pounds become more expensive in their own currency; this makes UK exports less price-competitive compared with goods from other countries, which can reduce the quantity of exports sold. Effect 2: exporters who sell goods priced in a foreign currency (or who are paid in foreign currency) will find that this converts into fewer pounds than before when the pound is stronger, reducing their revenue and profit margins once converted back into pounds, even if the volume of goods sold is unchanged.

[1] identification + [1] explanation for each of two valid effects, maximum [4] (e.g. reduced price competitiveness/lower export volumes; reduced revenue/profit when foreign earnings are converted to pounds).

Fiscal policy involves the government using changes in taxation and public spending to influence the economy. For example, the government could lower income tax rates or raise tax-free thresholds, leaving households with more disposable income; this is likely to increase consumer spending, boosting demand in the economy and helping to achieve the objective of economic growth (or, in a recession, helping to reduce unemployment as businesses respond to higher demand by hiring more workers). Alternatively, increased government spending on public services directly injects money into the economy, again supporting growth and employment.

[1] identification of a valid fiscal policy tool (e.g. changing tax rates/thresholds; changing government spending); [2] explanation of how this helps achieve an economic objective (e.g. growth, employment). Maximum [3].

International trade allows a UK business to sell its goods or services to customers in other countries, not just within the UK; this gives the business access to a much larger potential market, increasing its potential sales volume and revenue beyond what would be possible if it depended solely on domestic demand. This can allow the business to grow faster, achieve economies of scale from higher production levels, and reduce its reliance on the state of the UK economy alone, spreading risk across multiple markets.

[1] identification of a valid benefit (e.g. access to a larger market; increased sales/revenue; economies of scale; spreading risk); [2] explanation/development of the benefit. Maximum [3].

(a) At every price level, the quantity supplied 'after' is 100kg lower than 'before' (e.g. 700kg instead of 800kg at £1.00). This represents a decrease in supply, shown graphically as a parallel leftward shift of the whole supply curve, rather than a movement along the original curve.
(b) Fertiliser is a cost of production for growing carrots. When this cost rises, the farm's profit margin at any given selling price falls, making carrot production relatively less profitable; producers respond to higher costs by being willing to supply less at each price than before (or equivalently, requiring a higher price to be willing to supply the same quantity as before), which is represented by the leftward shift of the supply curve from 'before' to 'after'.

(a) [1] correct identification of a leftward shift/decrease in supply; [1] supporting reference to specific data values from the table. (b) [1] identification that a cost of production has risen, reducing profitability; [1] explanation linking this to producers being willing to supply less at each price. Maximum [4].

(a) At every price level, the quantity demanded 'after' is 30 cups higher than 'before' (e.g. 45 cups instead of 15 at £3.50). This represents an increase in demand, shown graphically as a parallel rightward shift of the whole demand curve, rather than a movement along the original curve.
(b) The competing coffee shop was a substitute good/service; when a substitute becomes unavailable, some consumers who would previously have bought from the competitor now switch their custom to this coffee shop instead. This increases the quantity of iced coffee demanded from this shop at every price level, which is represented by the rightward shift of the demand curve from 'before' to 'after'.

(a) [1] correct identification of a rightward shift/increase in demand; [1] supporting reference to specific data values from the table. (b) [1] identification that a substitute has become unavailable; [1] explanation linking this to increased demand at each price. Maximum [4].

The CPI index rose in every year shown, from 108 in 2019 to a peak of 128 in 2023, indicating a sustained overall increase in the general price level (inflation) throughout the period. The rate of increase was not constant: the index rose only slightly between 2019 and 2020 (108 to 109, a rise of 1 point), then rose much more steeply between 2020 and 2022 (109 to 122, a rise of 13 points over two years), before the rate of increase slowed again between 2022 and 2023 (122 to 128, a rise of 6 points).

[1] correct overall starting point (108, 2019); [1] correct overall end point (128, 2023) and correct overall direction (increase); [1] identification of the changing rate of increase (e.g. accelerating 2020-2022); [1] use of specific supporting data values from the table. Maximum [4].

Risk 1: borrowing money is not free - interest is charged on the amount borrowed, meaning the total amount eventually repaid is more than the amount originally borrowed; if the debt is not repaid quickly, or if interest rates rise (for variable-rate borrowing), the cost of borrowing can increase significantly over time. Risk 2: failing to keep up with repayments can seriously damage a borrower's credit rating/credit score, making it harder (or more expensive, due to higher interest rates being offered) for them to borrow again in future (e.g. for a mortgage); persistent missed payments can also lead to additional fees, debt collection action, or in serious cases legal action/bailiffs.

[1] identification + [1] explanation for each of two valid risks, maximum [4] (e.g. cost of interest/total repayment exceeding amount borrowed; damage to credit rating; risk of increasing debt/fees for missed payments).

Effect 1: high unemployment means a proportion of the workforce is not being used productively, so the economy is not producing as much as it could if all willing and able workers were employed; this represents a waste of resources and reduces the economy's actual output compared with its potential output. Effect 2: unemployed people generally earn less (or no) income, so they pay less income tax and less indirect tax (through lower spending), reducing government tax revenue; at the same time, the government has to spend more on unemployment-related benefits to support those out of work, worsening the government's overall budget position (increasing a budget deficit or reducing a surplus). Other valid effects: lower consumer spending in the economy (multiplier effect); negative social effects such as increased poverty, reduced skills over time, and poorer health/wellbeing among the unemployed.

[1] identification + [1] explanation for each of two valid effects, maximum [4] (e.g. lost output/waste of resources; lower tax revenue/higher benefits spending; reduced consumer spending; social costs).

Effect 1 (consumers): if the rate of increase in wages does not keep pace with the rate of inflation, the real value/purchasing power of consumers' income falls, meaning they can afford to buy fewer goods and services than before with the same nominal income, reducing their real standard of living; this can hit people on fixed incomes (e.g. some pensioners) particularly hard. Effect 2 (businesses): high inflation increases businesses' costs of production (e.g. raw materials, wages), which can squeeze profit margins if businesses are unable to fully pass these costs on to consumers through higher prices; high and unpredictable inflation also creates uncertainty, making it harder for businesses to plan future investment, set prices, and negotiate contracts with confidence, which can reduce business investment overall.

[1] identification + [1] explanation for each of two valid effects (at least one on consumers and/or one on businesses), maximum [4] (e.g. falling real purchasing power; harm to those on fixed incomes; rising business costs/squeezed margins; uncertainty reducing investment).

Effect 1: when the pound weakens (depreciates), foreign buyers need less of their own currency to buy the same amount of pounds, so UK goods priced in pounds effectively become cheaper for them; this improves the price competitiveness of UK exports abroad and can increase the volume of exports sold, benefiting UK exporting businesses. Effect 2: a weaker pound means it takes more pounds to buy the same amount of foreign currency, so imported goods and raw materials become more expensive in pound terms; this raises costs for UK businesses that rely on imported components, and raises prices for consumers buying imported goods, contributing to inflationary pressure in the UK economy.

[1] identification + [1] explanation for each of two valid effects, maximum [4] (e.g. cheaper/more competitive exports; increased export volumes; more expensive imports; imported inflation/higher business costs).

Indicative content - causes: cyclical unemployment (caused by a fall in demand in the economy during a downturn/recession, leading businesses to reduce their workforce); structural unemployment (caused by a long-term decline in a particular industry, e.g. traditional manufacturing, leaving workers with skills that no longer match available jobs); frictional unemployment (short-term unemployment as people move between jobs); seasonal unemployment (in industries where demand for labour varies through the year, e.g. tourism/agriculture). Policy evaluation: supply-side policies, such as government-funded retraining and education schemes, can help address structural unemployment by giving workers skills matched to available jobs, though these take time and money to have an effect; fiscal policy (increased government spending or tax cuts) can boost demand in the economy to reduce cyclical unemployment, but risks increasing government borrowing/inflation; monetary policy (lower interest rates) can also stimulate demand and investment, encouraging businesses to hire, though its effect may be limited if consumer/business confidence is low; unemployment benefits provide support for those out of work but do not by themselves reduce the underlying causes of unemployment and can, if too generous, reduce incentives to seek work. An evaluative conclusion should weigh which policies are best suited to which type(s) of unemployment and reach a substantiated judgement.

Level 1 (1-3 marks): Basic, generalised description of one or two causes and/or policies, limited development; weak QWC. Level 2 (4-6 marks): Sound explanation of a range of causes AND policies, with some evaluation; adequate QWC. Level 3 (7-8 marks): Detailed, well-developed discussion of a range of causes matched to appropriate policies, with a well-substantiated evaluative judgement on effectiveness; clear QWC.

Indicative content - causes: demand-pull inflation (occurs when aggregate demand in the economy grows faster than the economy's ability to supply goods and services, pulling prices up); cost-push inflation (occurs when the costs of production, such as wages, raw materials or energy, rise, and businesses pass these higher costs on to consumers through higher prices). Policy evaluation: monetary policy - raising the Bank of England's base interest rate makes borrowing more expensive and saving more attractive, reducing consumer spending and business investment, which can cool demand-pull inflation, though higher interest rates also increase mortgage/loan costs for households and businesses and can slow economic growth; fiscal policy - the government could raise taxes or cut spending to reduce demand in the economy, but this is often politically difficult and can also slow growth/increase unemployment; supply-side policies - measures to increase the economy's productive capacity (e.g. investment in infrastructure, education, or reducing costs of production) can help address cost-push inflation over the longer term, though these policies typically take a long time to have an effect. An evaluative conclusion should weigh the speed, effectiveness and side-effects of these different policy approaches and reach a substantiated judgement, potentially noting that the most appropriate policy depends on whether the underlying cause is demand-pull or cost-push.

Level 1 (1-3 marks): Basic, generalised description of one or two causes and/or policies, limited development; weak QWC. Level 2 (4-6 marks): Sound explanation of a range of causes AND policies, with some evaluation; adequate QWC. Level 3 (7-8 marks): Detailed, well-developed discussion of a range of causes matched to appropriate policies, with a well-substantiated evaluative judgement on effectiveness; clear QWC.

Two valid methods of trade protection: tariffs (a tax on imported goods) and quotas (a physical limit on the quantity of a good that can be imported); embargoes (a total ban on importing a particular good) are also valid. A tariff is a tax imposed by a government on goods imported from abroad; by adding to the cost of the imported good, it makes it more expensive relative to similar domestically-produced goods, encouraging consumers to buy the domestic alternative and protecting domestic producers from cheaper foreign competition, while also raising revenue for the government.

[1] mark for each of two valid trade protection methods named, up to [2]: e.g. tariffs; quotas; embargoes. [2] basic definition of a tariff (a tax on imports); [2] development, e.g. reference to raising the relative price of imports/protecting domestic producers or raising government revenue. Maximum [6].

Indicative content: A tariff on imported steel raises the price of imported steel in the domestic market; this makes domestically-produced steel relatively more price-competitive, likely increasing demand for domestic steel and allowing domestic steel producers to increase their output, sales, revenue, and potentially employment in the domestic steel industry, as some demand switches away from now-more-expensive imports. However, for domestic consumers and businesses that use steel as an input (e.g. construction firms, carmakers), the tariff raises their costs, since they now face higher prices for imported steel and (as demand shifts) potentially higher prices from domestic producers too, who may raise prices knowing imports are less competitive; this could increase costs throughout supply chains, potentially raising prices for final consumers of steel-using products (e.g. cars, buildings) and reducing the competitiveness of UK firms that export steel-containing products internationally. A market diagram analysis could show the tariff shifting effective import supply, raising the domestic equilibrium price and reducing quantity imported, while increasing domestic quantity supplied.

Level 1 (1-3 marks): Basic, one-sided analysis (e.g. producers OR consumers only), limited development. Level 2 (4-6 marks): Sound analysis of the impact on both domestic producers AND consumers/businesses, with some economic reasoning. Level 3 (7-9 marks): Detailed, well-developed analysis of the impact on both domestic producers and consumers/businesses, using clear economic reasoning (e.g. relative price changes, market/supply chain effects) throughout.

Indicative content: from Table 2 - UK steel imports have risen from 7.2 to 8.6 million tonnes (2019-2023) while domestic production has fallen from 7.5 to 6.2 million tonnes over the same period, suggesting the domestic industry is losing market share to imports, which could be used to support the case for protection to safeguard domestic jobs/industry. Arguments for protection: protects domestic jobs and industries (such as steel, as shown by the declining production trend) from being undercut by cheaper foreign competition; can help protect strategically important industries (e.g. steel is important for construction/defence); can raise government revenue (from tariffs); can help address unfair trade practices (e.g. foreign dumping of artificially cheap goods). Arguments against protection: raises costs for domestic consumers and businesses that rely on imported goods (e.g. steel-using industries, as analysed in part (b)), potentially raising prices throughout the economy; can provoke retaliation from trading partners, who may impose their own tariffs on UK exports, harming UK exporters; reduces competition, which can reduce the incentive for domestic producers to innovate or become more efficient, potentially harming long-term productivity; contradicts the principle of free trade and comparative advantage, which is generally understood to increase overall global economic welfare and consumer choice. A balanced discussion should use the data to support the argument about the declining domestic industry, weigh this against the costs of protectionism, and reach a substantiated overall judgement.

Level 1 (1-5 marks): Basic, one-sided or generalised points; limited or no use of Table 2; weak QWC. Level 2 (6-10 marks): Some relevant points on both sides with limited development; some use of data from Table 2; adequate QWC. Level 3 (11-15 marks): A wide range of well-developed, balanced points on both sides, clear and accurate use of data from Table 2 to support the argument, precise economic terminology, and a substantiated overall judgement; sophisticated QWC. Answers that fail to use the data in Table 2 are capped at a maximum of Level 2 (10/15).

Ice cream sales start low in January at £12,000, when the average temperature is coldest (5°C), and rise steadily as both the months progress and the temperature increases, reaching a peak of £68,000 in July, when the average temperature is highest (22°C). After July, as average temperature begins to fall again into autumn, sales also fall, down to £42,000 in September (17°C) and further to £15,000 by November (8°C), close to the January starting level. Overall, the data shows a clear positive relationship between temperature and ice cream sales, peaking in the warmest month and falling away as temperatures cool at either end of the year.

[1] correct starting point (£12,000, January); [1] correct identification of the peak (£68,000, July); [1] correct description of the fall after the peak; [1] overall description of the positive relationship with temperature, supported by specific data values. Maximum [4].

\( \% \text{ change in quantity demanded} = \dfrac{400 - 500}{500} \times 100 = \dfrac{-100}{500} \times 100 = -20\% \)
\( \% \text{ change in price} = \dfrac{2.50 - 2.00}{2.00} \times 100 = \dfrac{0.50}{2.00} \times 100 = 25\% \)
\( PED = \dfrac{-20\%}{25\%} = -0.8 \)

[1] correct % change in quantity demanded calculated (-20%) with working shown; [1] correct % change in price calculated (25%) with working shown; [1] correct final PED value (-0.8, accept 0.8 if sign is not shown but magnitude is correct and interpreted correctly). Own Figure Rule (OFR) applies if one calculation step contains an arithmetic slip but the correct method is applied to reach a final PED value. Maximum [3].

(a) The equilibrium occurs where quantity demanded equals quantity supplied. From the table, this occurs at a price of £4, where both quantity demanded and quantity supplied equal 500 units.
(b) At a price of £6, quantity supplied (800 units) is greater than quantity demanded (200 units), creating an excess supply (surplus) of 600 units (800 - 200). With unsold stock building up, producers would respond by lowering their price to try to sell the surplus goods; as the price falls, quantity demanded increases (more buyers are willing to buy at the lower price) while quantity supplied decreases (producers are willing to supply less at the lower price), and this process continues until the surplus is eliminated and the price settles at the equilibrium price of £4, where quantity demanded and quantity supplied are equal (500 units).

(a) [1] correct equilibrium price (£4); [1] correct equilibrium quantity (500 units). (b) [1] correct identification of excess supply/surplus at £6, with correct surplus size (600 units) or correct data values used; [1] explanation that producers lower price in response; [1] explanation that this continues until quantity demanded equals quantity supplied at the equilibrium price. Maximum [5].

Demand is described as inelastic when the percentage change in quantity demanded resulting from a change in price is proportionally smaller than the percentage change in price itself; in other words, quantity demanded is relatively unresponsive to price changes. This is indicated by a PED value (ignoring the negative sign, which simply shows the inverse relationship between price and quantity) with a size of less than 1. Since the calculated PED was -0.8, and \( |{-0.8}| < 1 \), this good has inelastic demand: the 20% fall in quantity demanded was proportionally smaller than the 25% rise in price that caused it.

[1] accurate definition of inelastic demand (proportionally smaller change in Qd than change in price); [1] correct identification that a PED with a size less than 1 indicates inelastic demand; [1] correct application to the value -0.8 (correctly identified as inelastic). Maximum [3].

Market equilibrium is the point (price and quantity) at which the quantity of a good that consumers are willing and able to buy (quantity demanded) exactly equals the quantity that producers are willing and able to sell (quantity supplied); at this point, there is no shortage or surplus, so there is no economic pressure for the price to rise or fall further, and the market is said to 'clear'.

[1] basic idea of quantity demanded equalling quantity supplied; [1] reference to this being at a specific price/quantity; [1] reference to no further tendency for price to change / the market clearing. Maximum [3].

Price elasticity of supply (PES) measures the responsiveness (or sensitivity) of the quantity of a good that producers are willing to supply to a change in the price of that good. It is calculated as the percentage change in quantity supplied divided by the percentage change in price; supply is described as elastic if PES is greater than 1 (quantity supplied changes proportionally more than price) and inelastic if PES is less than 1 (quantity supplied changes proportionally less than price).

[1] basic idea of responsiveness of quantity supplied to a change in price; [1] reference to the % change in quantity supplied / % change in price relationship; [1] reference to elastic (PES>1) vs inelastic (PES<1) supply. Maximum [3].

Total Cost (TC) = Fixed Cost + (Variable Cost per unit x Output) = £4,000 + (£6 x Output).
Total Revenue (TR) = Price per unit x Output = £10 x Output.
Output 0: TC = 4000 + (6x0) = £4,000; TR = 10x0 = £0.
Output 400: TC = 4000 + (6x400) = 4000+2400 = £6,400; TR = 10x400 = £4,000.
Output 800: TC = 4000 + (6x800) = 4000+4800 = £8,800; TR = 10x800 = £8,000.
Output 1000: TC = 4000 + (6x1000) = 4000+6000 = £10,000; TR = 10x1000 = £10,000.
(b) Break-even occurs where TC = TR. From the completed table, this occurs at an output of 1000 units, where both TC and TR equal £10,000 (this can be checked using the formula: break-even output = Fixed Cost / (Price - Variable Cost per unit) = 4000 / (10-6) = 4000/4 = 1000 units).

(a) [1] all four TC values correct; [1] all four TR values correct (award partial credit at examiner discretion for 3 of 4 correct in either row). (b) [1] correct break-even output identified (1000 units); [1] correct working/justification shown (e.g. TC=TR=£10,000, or use of the break-even formula). Maximum [5]. Own Figure Rule (OFR) applies to (b) using the candidate's own (a) values.

A fixed cost is a cost that a business must pay regardless of how much it produces, and does not change as output changes in the short run - for example, rent on a factory or business rates, which must be paid even if output is zero. A variable cost, in contrast, changes directly with the level of output - the more a business produces, the higher its variable costs, and vice versa - for example, the cost of raw materials or piece-rate labour costs, which rise as more units are produced.

[1] accurate definition of fixed cost with a valid example (e.g. rent, business rates, salaries); [1] accurate definition of variable cost with a valid example (e.g. raw materials, packaging); [1] clear point of distinction made between the two (e.g. does/does not change with output). Maximum [3].

An externality is a cost (negative externality) or a benefit (positive externality) arising from the production or consumption of a good or service that is experienced by a third party who was not directly involved in the transaction, and which is therefore not reflected in the market price paid; for example, air pollution from a factory (a negative externality affecting nearby residents) or the wider health benefits from someone getting a vaccination (a positive externality benefiting others in the community).

[1] basic idea of a cost/benefit affecting a third party; [1] reference to it arising from production/consumption; [1] reference to it not being reflected in the market price, or a valid example given. Maximum [3].

Private cost is the direct cost incurred by the individual or firm actually carrying out an economic activity - for example, a factory's spending on raw materials, wages and energy to produce goods. Social cost is the total cost to society as a whole resulting from that activity; it is calculated as private cost plus any external (third-party) costs generated, such as the cost of air or noise pollution affecting nearby residents, or NHS costs from pollution-related ill health. Where negative externalities exist, social cost is therefore greater than private cost, and a good's market price (based only on private cost) understates its true cost to society.

[1] accurate definition of private cost; [1] accurate definition of social cost; [1] correct relationship stated (social cost = private cost + external cost); [1] valid supporting example. Maximum [4].

Indicative content: Factors affecting PES for an agricultural crop - the time period (supply of crops is often very inelastic in the short run, since a farmer cannot quickly increase output once planting decisions have been made and are constrained by the length of the growing season, but may be more elastic over a longer period as farmers can switch land use between seasons); the availability of spare capacity/stocks (if crops cannot be easily stored, supply in a given period is more fixed/inelastic); the impact of weather, which the farmer cannot control, causing unpredictable swings in the actual quantity that can be supplied regardless of price, meaning realised supply may not follow a smooth, elastic response to price signals at all in a bad year. Evaluation of business challenges: inelastic and weather-dependent supply means the farmer's revenue can be highly volatile from year to year, making it difficult to plan investment, secure financing, or guarantee stable income; because supply cannot quickly adjust to short-term price changes, a bad harvest could mean both lower output and (if demand exceeds the now-scarce supply) a sharply higher price, while a bumper harvest could depress prices at exactly the time output is highest, both scenarios increasing income uncertainty; the farmer might respond by using strategies such as forward contracts/hedging, diversifying into other crops or income sources, or investing in irrigation/storage/greenhouse technology to reduce the extent to which supply is weather-dependent and inelastic. A substantiated judgement should weigh how significant a challenge this volatility poses and what could realistically be done to manage it.

Level 1 (1-3 marks): Basic, generalised discussion with limited economic reasoning; weak QWC. Level 2 (4-7 marks): Sound discussion of factors affecting PES for the crop with some evaluation of the challenges for the business; adequate QWC. Level 3 (8-10 marks): Detailed, well-developed discussion of a range of factors affecting PES, with a thorough, well-substantiated evaluation of the business challenges and possible responses; sophisticated QWC and accurate use of economic terminology throughout.

Indicative content: External costs - noise pollution affecting nearby residents' quality of life and wellbeing; air pollution potentially causing or worsening respiratory health problems among residents, creating costs for the NHS/individuals not reflected in the factory's private costs; potential negative effects on local property values or the local environment (e.g. wildlife habitats). External benefits - local employment created by the factory provides income for workers and their families and reduces local unemployment, with positive knock-on effects for local businesses (e.g. shops, services) that benefit from workers' spending; the factory may also generate local tax revenue that funds public services, and could support local supply-chain businesses. Evaluation of government intervention: because the factory's private costs (reflected in its prices) do not include the external costs of pollution imposed on residents, the free market is likely to lead to overproduction relative to the socially optimal level (a form of market failure); this suggests intervention could be justified, for example through pollution taxes (making the factory pay for the externality, encouraging cleaner production or a more socially optimal output level), regulation (setting legal limits on noise/emissions), or requiring investment in pollution-reduction technology. However, intervention has costs and risks too: taxes or regulation that are too strict could raise the factory's costs to the point where it reduces output, relocates, or closes, resulting in job losses and a loss of the external benefits (employment, local spending) identified above; intervention also requires the external costs to be accurately measured/monitored, which can be difficult and costly. A substantiated judgement should weigh the scale of the external costs against the external benefits and reach a conclusion on whether, and how much, intervention is justified.

Level 1 (1-3 marks): Basic, one-sided identification of costs OR benefits, limited evaluation; weak QWC. Level 2 (4-7 marks): Sound discussion of both external costs AND external benefits, with some evaluation of intervention; adequate QWC. Level 3 (8-10 marks): Detailed, well-developed discussion of both external costs and benefits, with a thorough, well-substantiated evaluation of whether government intervention is justified, considering both the case for and risks of intervention; sophisticated QWC and accurate use of economic terminology throughout.