2026 Cambridge IGCSE Economics (0455) Practice Paper with Answers

An economic good is scarce in relation to demand and requires scarce resources to produce, meaning its production involves an opportunity cost. A free good (such as air or sunlight) is abundant, requires no resources to produce, and has zero opportunity cost.

C is correct [1 mark]. An economic good involves an opportunity cost to produce. A, B, and D describe incorrect distinctions.

PED is calculated using the formula: \(\text{PED} = \frac{\% \text{ change in quantity demanded}}{\% \text{ change in price}}\).

1. \(\% \text{ change in quantity demanded} = \frac{450 - 500}{500} \times 100 = -10\%\)
2. \(\% \text{ change in price} = \frac{12 - 10}{10} \times 100 = +20\%\)
3. \(\text{PED} = \frac{-10\%}{20\%} = -0.5\) (or a magnitude of 0.5).

A is correct [1 mark]. PED = (-10%) / (+20%) = -0.5.

Occupational mobility refers to the ability of workers to switch between different types of jobs. Providing retraining programmes and vocational education equips workers with new skills, directly improving their occupational mobility.

B is correct [1 mark]. Subsidised training schemes develop new skills enabling workers to change occupations.

1. \(\text{Total Variable Cost (TVC)} = \text{Total Cost} - \text{Total Fixed Cost} = \$2,400 - \$800 = \$1,600\).
2. \(\text{Average Variable Cost (AVC)} = \frac{\text{TVC}}{\text{Output}} = \frac{\$1,600}{200} = \$8\).

C is correct [1 mark]. AVC = ($2,400 - $800) / 200 = $8.00.

A regressive tax takes a higher percentage of income from low-income earners than from high-income earners. Therefore, as an individual's income increases, the proportion of income paid in tax falls.

D is correct [1 mark]. A regressive tax takes a smaller proportion of income as income increases.

The unemployment rate is calculated as: \(\text{Unemployment Rate} = \left(\frac{\text{Number of Unemployed}}{\text{Labour Force}}\right) \times 100\).

\(\text{Unemployment Rate} = \left(\frac{3.2}{40}\right) \times 100 = 8.0\%\).

Note: The working-age population includes economically inactive individuals who are not in the labour force, so it is not used in the denominator.

B is correct [1 mark]. (3.2 million / 40 million) * 100 = 8.0%.

The Human Development Index (HDI) is a composite measure combining three dimensions of human development:
1. Standard of living (measured by Gross National Income or GDP per head adjusted for PPP)
2. Health / longevity (measured by life expectancy at birth)
3. Education (measured by mean and expected years of schooling).

C is correct [1 mark]. HDI incorporates life expectancy, education (years of schooling), and income per head.

The current account balance is the sum of the balances of trade in goods, trade in services, primary income, and secondary income:

\(\text{Current Account Balance} = (-45) + (+20) + (+8) + (-3) = -20\text{ billion}\).

This represents a deficit of $20 billion.

B is correct [1 mark]. Balance = -45 + 20 + 8 - 3 = -20 billion (a deficit of $20 billion).

An outward shift of the PPC represents an increase in an economy's maximum productive capacity. This is caused by an increase in the quantity or quality of factors of production. An increase in the retirement age expands the size of the active labour force, thereby shifting the PPC outwards. Moving from capital goods to consumer goods is a movement along the curve, reducing unemployment moves an economy from inside the curve toward the boundary, and an increase in consumer demand does not increase productive capacity.

C is correct [1 mark].
A is incorrect as reallocation represents a movement along the PPC.
B is incorrect as reducing unemployment is a movement from a point within the PPC towards the boundary.
D is incorrect as an increase in demand affects total demand, not the economy's maximum productive capacity.

First, calculate the percentage change in price: \(\frac{24 - 20}{20} \times 100 = +20\%\).
Using the formula \(\text{PED} = \frac{\% \Delta Q_d}{\% \Delta P}\):
\(-0.5 = \frac{\% \Delta Q_d}{+20\%} \implies \% \Delta Q_d = -10\%\).
Since demand is price inelastic (PED magnitude \(< 1\)), the percentage rise in price outweighs the percentage fall in quantity demanded, leading to an increase in total revenue.

A is correct [1 mark].
B is incorrect because inelastic demand means a price rise causes revenue to increase, not decrease.
C is incorrect because quantity demanded falls by 10%, not 20%.
D is incorrect in both quantity change and total revenue direction.

Total cost (TC) is the sum of total fixed costs and total variable costs:
\(\text{TC} = \text{TFC} + \text{TVC} = \$300 + \$450 = \$750\).
Average total cost (ATC) is total cost divided by total output:
\(\text{ATC} = \frac{\text{TC}}{\text{Output}} = \frac{\$750}{500} = \$1.50\).

C is correct [1 mark].
A is incorrect as \(\$0.60\) is the average fixed cost (\(\$300 / 500\)).
B is incorrect as \(\$0.90\) is the average variable cost (\(\$450 / 500\)).
D is incorrect as \(\$7.50\) arises from a calculation error.

A progressive tax is defined as a tax where higher-income earners pay a higher proportion (percentage) of their income in tax compared to lower-income earners. Option A describes a poll or lump-sum tax, option C describes a regressive tax, and option D describes an indirect/proportional consumption tax.

B is correct [1 mark].
A is incorrect as it describes a flat lump-sum tax.
C is incorrect as it describes a regressive tax.
D is incorrect as it describes an indirect tax.

Supply-side policies aim to increase the productive potential of the economy by improving the quantity or quality of factors of production. Providing government funding and subsidies for occupational training programmes improves the skill and productivity of labour. Lowering base interest rates is monetary policy, raising income tax is fiscal policy, and exchange rate depreciation is an external/exchange rate policy.

A is correct [1 mark].
B is incorrect as lowering interest rates is an expansionary monetary policy.
C is incorrect as raising income tax is a contractionary fiscal policy.
D is incorrect as currency depreciation is an exchange rate policy affecting total demand.

The Human Development Index (HDI) measures development using three dimensions: health (life expectancy at birth), education (mean years of schooling and expected years of schooling), and standard of living (GNI/GDP per capita adjusted for purchasing power). Inflation, budget balance, and current account balances are macroeconomic indicators but not components of HDI.

B is correct [1 mark].
A, C, and D are incorrect because inflation rates, budget balances, and current account figures are not components of the HDI composite index.

The current account balance is calculated as:
Trade in goods balance: \(60 - 85 = -\$25\text{ bn}\)
Trade in services balance: \(40 - 25 = +\$15\text{ bn}\)
Net trade balance (goods and services): \(-25 + 15 = -\$10\text{ bn}\)
Add Net primary income: \(-10 + (-5) = -\$15\text{ bn}\)
Add Net secondary income: \(-15 + 2 = -\$13\text{ bn}\).
This represents a deficit of \(\$13\text{ bn}\).

B is correct [1 mark].
A is incorrect as it miscalculates trade balances as positive surpluses.
C is incorrect as it omits net secondary income (\(-\$15\text{ bn}\)).
D is incorrect as it miscalculates signs across services and transfers.

Public goods possess two key characteristics: non-excludability (it is impossible to prevent non-payers from consuming the good) and non-rivalry (consumption by one person does not diminish availability to others). Because people can benefit without paying, the 'free-rider problem' arises, meaning private firms cannot charge a price and will not supply the good, resulting in market failure.

B is correct [1 mark].
A is incorrect because private firms do not supply public goods at all, so monopoly pricing does not occur.
C is incorrect because public goods generate social benefits, not net external costs.
D is incorrect as information failure is not the primary defining reason for non-provision of public goods.

An outward shift of the PPC represents an increase in the maximum productive capacity of the economy. This is caused by an increase in the quantity or quality of factors of production. Raising the retirement age increases the size of the available labour force, thereby expanding the economy's productive potential. Option A affects total demand for imports rather than capacity. Option C is a movement along the PPC. Option D is a movement from a point inside the PPC towards the boundary, representing fuller employment of existing resources rather than an increase in capacity.

B is correct [1 mark].
A is incorrect as it alters the composition of aggregate spending, not productive capacity.
C is incorrect as reallocating resources between goods is a movement along an existing PPC.
D is incorrect as reducing unemployment moves production closer to the existing curve.

Price elasticity of demand (PED) is calculated as:

\(\text{PED} = \frac{\% \text{ change in quantity demanded}}{\% \text{ change in price}}\)

\(\% \text{ change in quantity demanded} = \frac{700 - 500}{500} \times 100 = +40\%\)

\(\% \text{ change in price} = \frac{16 - 20}{20} \times 100 = -20\%\)

\(\text{PED} = \frac{40\%}{-20\%} = -2.0\) (ignoring the negative sign, PED = 2.0).

C is correct [1 mark].
A is incorrect (calculates inverse: 20% / 40% = 0.5).
B is incorrect (calculation error).
D is incorrect (uses change over new value incorrectly).

Public goods are non-excludable (it is impossible to prevent non-payers from consuming them) and non-rival (one person's consumption does not reduce the amount available for others). Option A describes a demerit good or a good generating external costs. Option C is incorrect because public goods cannot be profitably provided by the private sector due to the free-rider problem. Option D describes a merit good.

B is correct [1 mark].
A is incorrect as it describes goods with negative externalities.
C is incorrect as private firms cannot charge non-payers and thus fail to provide public goods.
D is incorrect as this defines a merit good.

Fixed cost (FC) is the total cost when output is zero, so \(\text{FC} = \$400\).

At an output of 200 units:
\(\text{Total Variable Cost (TVC)} = \text{Total Cost} - \text{Fixed Cost} = \$1300 - \$400 = \$900\).

\(\text{Average Variable Cost (AVC)} = \frac{\text{TVC}}{\text{Output}} = \frac{\$900}{200} = \$4.50\).

B is correct [1 mark].
A is incorrect (calculates average fixed cost: 400 / 200 = $2.00).
C is incorrect (calculates average total cost: 1300 / 200 = $6.50).
D is incorrect (calculates total variable cost without dividing by output: $900 / 100).

Occupational mobility refers to the ability and willingness of workers to switch from one type of job to another. Providing state-funded training and retraining programmes equips workers with new skills, allowing them to qualify for and transition into different occupations. Option A reduces geographical mobility. Option C lowers wage floors but does not give workers new skills. Option D creates barriers to entry into trades, reducing occupational mobility.

B is correct [1 mark].
A is incorrect as high accommodation costs hinder geographical mobility.
C is incorrect as changing the minimum wage does not alter worker skill sets.
D is incorrect as stricter licensing reduces the ease with which workers can enter an occupation.

Inflation reduces the purchasing power of money over time. When inflation rises unexpectedly, borrowers with fixed-interest rate debt gain because they repay their loans in money that has less purchasing power than when it was borrowed. Conversely, lenders (commercial banks holding fixed-rate mortgages), pensioners on fixed nominal pensions, and cash savers all lose real purchasing power.

D is correct [1 mark].
A is incorrect as lenders receive fixed interest whose real value has fallen.
B is incorrect as fixed nominal income buys fewer goods and services.
C is incorrect as the real purchasing power of cash holdings is eroded.

The Human Development Index (HDI) comprises three dimensions: (1) a long and healthy life (measured by life expectancy at birth), (2) knowledge/education (measured by mean years of schooling for adults and expected years of schooling for children), and (3) a decent standard of living (measured by GNI or real GDP per head adjusted for purchasing power parity). Mean years of schooling is therefore one of the official components.

B is correct [1 mark].
A is incorrect as HDI does not include income inequality.
C is incorrect as labour force growth is not a component of HDI.
D is incorrect as carbon emissions are not part of the standard HDI formula.

The current account balance is the sum of the balance of trade in goods, trade in services, primary income, and secondary income.

Trade in goods balance = \(140 - 165 = -\$25\text{ billion}\)
Trade in services balance = \(80 - 55 = +\$25\text{ billion}\)
Primary income balance = \(-\$10\text{ billion}\)
Secondary income balance = \(-\$5\text{ billion}\)

Current account balance = \(-25 + 25 + (-10) + (-5) = -\$15\text{ billion}\) (a deficit of $15 billion).

A is correct [1 mark].
B is incorrect (only includes trade in goods balance: -25).
C is incorrect (mistakenly treats net primary and secondary outflows as positive inflows).
D is incorrect (calculates only the trade balance in services: +25).

Opportunity cost is defined as the benefit of the next best alternative forgone. The alternatives to growing wheat ($12 000) are barley ($9 000) and potatoes ($7 000). The next best alternative is growing barley, which yields $9 000 of profit forgone.

B is correct [1]. Opportunity cost is the next best alternative forgone ($9 000 for barley). A is incorrect because potatoes are not the next best alternative. C is the profit earned, not forgone. D incorrectly sums all forgone alternatives rather than taking the next best.

PED is calculated as the percentage change in quantity demanded divided by the percentage change in price. Percentage change in quantity demanded = \(((600 - 400) / 400) \times 100 = +50\%\). Percentage change in price = \(((8 - 10) / 10) \times 100 = -20\%\). Therefore, \(\text{PED} = 50 / -20 = -2.5\) (or 2.5 in absolute terms).

C is correct [1]. % change in QD = +50%, % change in P = -20%. PED = 50 / 20 = 2.5. A is the inverse calculation (20 / 50 = 0.4). B and D represent arithmetic miscalculations of the percentage changes.

Total Cost (TC) = Total Fixed Costs (TFC) + Total Variable Costs (TVC) = $20 000 + $30 000 = $50 000. Average Total Cost (ATC) = Total Cost / Output = $50 000 / 500 = $100.

C is correct [1]. Total cost = $20 000 + $30 000 = $50 000. ATC = $50 000 / 500 = $100. A is average fixed cost ($20 000 / 500 = $40). B is average variable cost ($30 000 / 500 = $60). D is the monthly output.

Unemployment rate = \((\text{number unemployed} / \text{labour force}) \times 100\). Here, Unemployment rate = \((1.6 / 20) \times 100 = 8.0\%\).

C is correct [1]. Unemployment rate = (1.6m / 20m) * 100 = 8.0%. A incorrectly uses total population (1.6 / 50 = 3.2%). B incorrectly uses working-age population (1.6 / 30 = 5.33%). D is an incorrect calculation.

An increase in domestic interest rates encourages foreign financial investment (capital inflows / hot money), increasing the demand for the domestic currency. An increase in foreign demand for exports also increases the demand for the currency to pay for those exports. Both changes increase the demand for the currency, causing it to appreciate.

D is correct [1]. Higher interest rates attract financial inflows and higher export demand increases currency purchases, both shifting demand for the currency rightward and appreciating the exchange rate. A, B, and C include factors that reduce currency demand or increase currency supply.

Trade in goods balance = $140bn - $180bn = -$40bn. Trade in services balance = $90bn - $60bn = +$30bn. Balance on trade in goods and services = -$40bn + $30bn = -$10bn. Adding net primary income (-$15bn) and net secondary income (+$5bn): Current account balance = -$10bn - $15bn + $5bn = -$20bn (a deficit of $20bn).

A is correct [1]. Goods balance (-40) + Services balance (+30) + Primary income (-15) + Secondary income (+5) = -20bn (deficit of $20bn). B (-30bn), C (+20bn), and D (+30bn) arise from arithmetic errors or confusing deficits with surpluses.

To calculate the current account balance, sum the four component balances:

1. Balance on trade in goods:
$$\text{Exports of goods} - \text{Imports of goods} = \$45\text{ billion} - \$52\text{ billion} = -\$7\text{ billion}$$

2. Balance on trade in services:
$$\text{Exports of services} - \text{Imports of services} = \$18\text{ billion} - \$12\text{ billion} = +\$6\text{ billion}$$

3. Primary income balance:
$$-\$2\text{ billion}$$

4. Secondary income balance:
$$-\$1\text{ billion}$$

$$\text{Current account balance} = -\$7\text{bn} + \$6\text{bn} + (-\$2\text{bn}) + (-\$1\text{bn}) = -\$4\text{ billion}$$

Valoria has a current account deficit of $\(4\) billion (or $-$4\) billion).

1 mark for the correct answer with correct unit and sign:
- $-$4$ billion / a deficit of $$4\$ billion / \$-\$4\$bn / deficit of \$4 billion dollars.

*Note: Award 1 mark for \$-4\$ or deficit of \$4\$ if billion is stated or clear from working. Do not award 1 mark for \$+4\$ or $$4$ billion without specifying deficit or negative sign.*

From the source material, the two non-wage factors used by firms to attract workers are:
1. Flexible working hours
2. Subsidised child-care facilities

1 mark for each valid non-wage factor identified from the source material (maximum 2 marks):
- Flexible working hours [1]
- Subsidised child-care facilities [1]

Note:
- Do not credit 'increased basic hourly wage rate' (wage factor).
- Do not credit 'technical training programmes' (undertaken by the government, not the firms).

From the source material, the two non-wage factors used by firms to attract workers are:
1. Flexible working hours
2. Subsidised child-care facilities

1 mark for each valid non-wage factor identified from the source material (maximum 2 marks):
- Flexible working hours [1]
- Subsidised child-care facilities [1]

Note:
- Do not credit 'increased basic hourly wage rate' (wage factor).
- Do not credit 'technical training programmes' (undertaken by the government, not the firms).

1. Identify a reason from the text (1 mark):
- To reduce structural unemployment caused by the decline of traditional manufacturing.
- OR To equip workers with skills required by the expanding renewable energy sector.

2. Explain the economic reasoning/effect (1 mark):
- Retraining workers enhances their occupational mobility and productivity, allowing them to fill vacancies in growth sectors and reducing the duration of unemployment.

Award 1 mark for identifying a valid reason from the extract:
- To reduce structural unemployment / assist workers from declining manufacturing industries (1)
- To equip workers with skills needed by expanding renewable energy firms (1)

Award 1 mark for explaining the link/benefit:
- Increases occupational mobility of labour / improves labour productivity / makes workers more employable in new industries (1)

Note: Maximum of 2 marks.

Production refers to the total quantity or volume of goods and services made by a firm, industry, or economy over a specific time period. It represents total output created by combining factors of production (land, labour, capital, and enterprise). In contrast, productivity is a measure of productive efficiency that compares output to the inputs used. It is calculated as output per unit of input, such as labour productivity (total output divided by the number of workers or hours worked). Thus, production measures total output, while productivity measures how effectively resources are utilized.

Up to 2 marks for explaining production: 1 mark for defining production as total output / total quantity of goods and services produced (or the process of combining inputs to create goods/services). 1 mark for development (e.g. measured in total units of output, can increase simply by employing more factors of production). Up to 2 marks for explaining productivity: 1 mark for defining productivity as output per unit of input / a measure of efficiency. 1 mark for development (e.g. formula/measure such as output per worker per hour, shows how effectively inputs are used, can increase even if total output stays constant).

A complete 4-mark diagram must include:
1. Axes correctly labelled: Vertical axis labelled 'Price' (or 'P') and horizontal axis labelled 'Quantity' (or 'Q').
2. Original curves and equilibrium: Downward-sloping demand curve labelled 'D' (or 'D1') and upward-sloping supply curve labelled 'S' (or 'S1'), with the initial equilibrium price labelled 'P1' (or 'Pe') and initial equilibrium quantity labelled 'Q1' (or 'Qe').
3. Shift of the supply curve: A parallel or rightward shift of the supply curve to 'S2' (or 'S + subsidy'), indicating an increase in supply due to lower production costs.
4. New equilibrium points: Clear dashed lines showing the new lower equilibrium price 'P2' and the new higher equilibrium quantity 'Q2'.

1 mark for correctly labelled axes: Price (P) on vertical axis and Quantity (Q) on horizontal axis.
1 mark for correctly labelled original demand curve (D) and supply curve (S1).
1 mark for rightward shift of the supply curve (S1 to S2).
1 mark for correctly labelled new equilibrium price (P2 < P1) and new equilibrium quantity (Q2 > Q1).

Notes:
- Reject if axes are swapped (e.g. Quantity on vertical and Price on horizontal).
- Allow unambiguous abbreviations (P, Q, D, S).
- Do not credit the shift mark if demand is shifted instead of supply.

To analyse the relationship between real GDP per head and HDI value:

1. Identify the general relationship:
There is a direct / positive relationship between real GDP per head and the Human Development Index (HDI) value (as real GDP per head rises, HDI tends to rise).

2. Provide supporting evidence from the data:
- Eldoria has the highest real GDP per head at $52,000 and the highest HDI value at 0.935.
- Tirania has the lowest real GDP per head at $8,200 and the lowest HDI value at 0.560.
- Similarly, Navara has a higher real GDP per head ($31,500) and higher HDI (0.840) than Belvada ($19,000 and 0.785).

3. Identify the exception / anomaly in the data:
Solaria is an exception. Solaria has a higher real GDP per head ($22,500) than Belvada ($19,000), but its HDI value (0.730) is lower than Belvada's (0.785).

4. Economic explanation for the general relationship:
Higher GDP per head means higher average incomes and tax revenues, enabling individuals and governments to afford better nutrition, healthcare, and educational resources, which raises HDI.

5. Economic explanation for the exception:
HDI measures not only income (GNI/GDP per head) but also health (life expectancy) and education (mean/expected years of schooling). Belvada may allocate a greater proportion of its resources to public healthcare and schooling, or have a more equal distribution of income, resulting in better social outcomes despite lower average income than Solaria.

Award up to 5 marks as follows:
- 1 mark for identifying the general / direct / positive relationship (higher GDP per head is associated with higher HDI).
- 1 mark for supporting data/evidence from Table 1 (e.g. comparing Eldoria and Tirania or Navara and Belvada, citing both figures).
- 1 mark for identifying the exception / anomaly with supporting figures (Solaria has higher GDP per head than Belvada [$22,500 vs $19,000] but lower HDI [0.730 vs 0.785]).
- 1 mark for explaining why the direct relationship exists (e.g. higher income allows greater spending on health, sanitation, education).
- 1 mark for explaining why the exception occurs (e.g. HDI includes health and education indicators, differences in income inequality, or differences in government spending on public services).

Why an increase in the national minimum wage (NMW) may reduce poverty:
- Higher wage rates directly raise the earnings and disposable income of low-income workers, enabling them to afford basic necessities such as food, shelter, and healthcare.
- It incentivises economically inactive individuals to enter the labour force, reducing unemployment and reliance on government welfare benefits.
- Higher incomes can boost worker morale and productivity, leading to higher output and sustained earnings.

Why an increase in the national minimum wage (NMW) may not reduce poverty:
- Higher wage costs increase firms' costs of production; firms may respond by substituting labour with capital (automation) or laying off workers, increasing unemployment among low-skilled workers.
- Firms may pass on higher labour costs to consumers by raising prices, causing cost-push inflation which erodes real incomes and purchasing power.
- A minimum wage does not directly benefit people who are already unemployed, retired, or unable to work due to illness/disability, who make up a significant proportion of those in absolute or relative poverty.

Award up to 4 marks for arguments why it will reduce poverty, and up to 4 marks for arguments why it might not reduce poverty (maximum 6 marks in total):

Why it will reduce poverty (up to 4 marks):
- Increases disposable income / earnings of low-paid workers (1) allowing them to purchase basic needs / rise above the poverty line (1).
- Increases the incentive to seek work / join the labour force (1) reducing dependency on state welfare (1).
- Can improve worker productivity / nutrition / health (1) leading to higher future earnings (1).

Why it might not reduce poverty (up to 4 marks):
- Increases firms' production costs (1) which may lead to worker redundancies / higher unemployment among the low-skilled (1).
- Higher costs may lead to higher product prices / cost-push inflation (1) which reduces real purchasing power (1).
- Does not help those outside the labour force (1) e.g. the retired, sick, or long-term unemployed (1).
- Some small businesses may close down (1) destroying jobs and incomes (1).

Note: A one-sided answer can achieve a maximum of 4 marks.

Why imposing tariffs may benefit an economy:
- Tariffs raise the price of imported goods, making domestic substitutes relatively cheaper and increasing demand for local output.
- Increased demand for domestic products helps protect domestic jobs and can reduce cyclical or structural unemployment in manufacturing.
- It protects domestic infant (sunrise) industries from foreign competition, allowing them time to grow, invest, and achieve economies of scale.
- Tariffs generate tariff revenue for the government, which can be spent on public services, education, or infrastructure.
- It reduces total spending on imports, which helps improve the country's current account balance on the balance of payments.

Why imposing tariffs may not benefit an economy:
- Domestic consumers face higher prices and reduced choice of products, lowering their real living standards.
- Domestic firms face less foreign competition, which may reduce their incentive to innovate, improve efficiency, or keep production costs low.
- If the imported goods are raw materials or capital equipment, domestic producers face higher costs of production, which can cause cost-push inflation.
- Trading partner countries may retaliate by imposing their own tariffs on the country's exports, harming domestic exporting industries and offsetting employment gains.

Award up to 4 marks for arguments why tariffs will benefit the economy, and up to 4 marks for arguments why tariffs will not benefit the economy (maximum 6 marks in total):

Why tariffs will benefit the economy (up to 4 marks):
- Protects infant/sunrise industries (1) giving them time to grow and achieve internal economies of scale (1).
- Increases demand for domestic goods (1) which protects or creates domestic employment (1).
- Generates tax revenue for the government (1) which can be reinvested into healthcare/infrastructure (1).
- Reduces expenditure on imports (1) which improves the current account balance (1).
- Protects against dumping by foreign firms (1).

Why tariffs will not benefit the economy (up to 4 marks):
- Higher prices for domestic consumers (1) leading to a fall in consumer surplus / purchasing power / living standards (1).
- Reduces competitive pressure on domestic firms (1) resulting in productive inefficiency / lower product quality (1).
- Higher costs for domestic producers relying on imported capital/inputs (1) leading to cost-push inflation (1).
- Risk of trade retaliation / trade wars from trading partners (1) reducing export demand and damaging export sector jobs (1).

Note: A one-sided answer can achieve a maximum of 4 marks.

Price elasticity of demand (PED) measures how much the quantity demanded of a good or service responds to a change in its price. It is calculated as the percentage change in quantity demanded divided by the percentage change in price.

Award 1 mark for identifying that it measures responsiveness of demand / quantity demanded.
Award 1 mark for stating that it is in response to a change in price.
Alternatively, award 2 marks for the correct formula: % change in quantity demanded / % change in price.

Inflation is defined as a continuous or sustained rise in the average/general level of prices across an economy over time, which reduces the purchasing power of money.

Award 1 mark for: sustained / continuous / general increase / rise (1).
Award 1 mark for: price level / average prices / cost of living / fall in the value (purchasing power) of money (1).

Opportunity cost refers to the value or benefit of the next best alternative that is sacrificed or given up when a decision is made to allocate scarce resources to a particular use.

Award 1 mark for: the next best alternative / choice forgone / sacrificed / given up (1).
Award 1 mark for: when an economic decision / choice is made / as a result of allocating resources (1).

A household may increase its borrowing for several reasons:

1. A fall in the rate of interest: Lower interest rates decrease the cost of taking out loans and mortgages. This reduces monthly repayment amounts, making borrowing more affordable for purchasing durable goods such as cars or housing.

2. An increase in consumer confidence: When individuals feel more secure in their jobs and expect higher future income, they are more willing to borrow money today, anticipating that they will comfortably manage future repayments.

(Other acceptable reasons include: purchasing expensive durable items/assets, funding emergency/unexpected expenditures, or higher expected future inflation inducing current borrowing.)

Point-based marking (max 4 marks):
- 1 mark for each reason identified (up to 2).
- 1 mark for each logical explanation/development (up to 2).

Points may include:
- Fall in interest rates (1): reduces borrowing costs / makes loan repayments cheaper (1).
- Rise in consumer confidence / optimism about future income (1): makes households willing to take on debt assuming they can repay it (1).
- Increase in availability / ease of credit (1): banks offer loans more readily with fewer restrictions (1).
- Major purchases / buying expensive goods (e.g. house, car) (1): current income is insufficient to cover total cost at once (1).
- Unexpected emergency / medical expenses / income shock (1): requires immediate funds to maintain basic consumption (1).
- Anticipation of future inflation (1): buying now before prices rise further (1).

Internal economies of scale arise when a firm expands its scale of production, leading to a fall in average total costs (ATC).

Key ways a firm benefits:
- Purchasing / bulk-buying economies: The firm purchases raw materials in bulk and receives discounts, lowering unit production costs.
- Technical economies: The firm can invest in large-scale, automated machinery and capital equipment, raising productivity and spreading fixed costs over more units.
- Financial economies: Financial institutions view larger firms as lower credit risks, giving them access to loans with lower interest rates.
- Managerial economies: The firm can divide labour among specialist managers (e.g. finance, operations, marketing), improving efficiency and coordination.
- Risk-bearing economies: The firm can diversify across multiple products or markets, cushioning against downturns in specific markets.

Benefits to the firm: Lower unit costs allow the firm to reduce selling prices to increase market share, or to earn higher profit margins at existing prices.

Award up to 6 marks for analysis:
- Definition / concept of internal economies of scale: average total cost falls as output / scale of production rises (1)
- Purchasing / bulk-buying economies: buying in large volumes earns discounts / cheaper raw materials (1), reducing average cost / unit cost (1)
- Technical economies: purchasing specialist / advanced machinery (1), increasing productivity / spreading fixed costs over larger output (1)
- Financial economies: larger firms are seen as lower risk by lenders (1), enabling borrowing at lower interest rates (1)
- Managerial economies: hiring specialised managers for specific tasks (1), increasing efficiency / productivity (1)
- Risk-bearing economies: diversifying products / markets (1), spreading risk and reducing impact of a fall in demand (1)
- Overall impact: enables firm to lower prices to become more competitive / raise profit margins (1)

Maximum of 6 marks. A maximum of 3 marks if only one type of internal economy of scale is analysed in detail.

Cost-push inflation occurs when firms face rising costs of production and pass these onto consumers through higher retail prices.

Causes:
- Rising wage rates: If wages increase faster than labour productivity, unit labour costs increase, prompting firms to raise selling prices.
- Increases in raw material / energy prices: Higher costs for oil, fuel, power, or intermediate goods increase operating costs.
- Higher indirect taxes: Increases in VAT or excise duties increase supply costs for firms, which are transferred to consumers in the form of higher prices.
- Depreciation of the exchange rate: A weaker currency makes imported raw materials and parts more expensive, raising production costs (imported cost-push inflation).
- Supply shocks / natural disasters: Disruptions to input supply reduce availability and raise the prices of components and raw materials.

Award up to 6 marks for analysis:
- Understanding of cost-push inflation: general price level rises due to higher costs of production / decrease in aggregate supply (1)
- Higher wages: wages rising faster than labour productivity (1), increasing unit labour costs and causing firms to raise prices to protect profits (1)
- Higher raw material / energy / commodity prices (1), raising operating / variable costs for firms (1)
- Increase in indirect taxes (e.g. VAT / excise duty / tariffs) (1), which directly raises the costs of supplying goods / shifts supply to the left (1)
- Depreciation of the foreign exchange rate (1), making imported raw materials / intermediate goods more expensive (1)
- Supply shocks / natural disasters (1), creating shortages of inputs and bidding up their prices (1)

Maximum of 6 marks. A maximum of 3 marks if only one cause is analysed in detail.

A currency depreciation occurs when the value of a floating currency decreases due to a decrease in its demand and/or an increase in its supply in the foreign exchange market.

Causes:
- Decrease in export demand: Falling demand for domestic exports reduces foreign demand for the domestic currency.
- Increase in import demand: Higher domestic demand for imported goods and services increases the supply of the domestic currency as residents sell it to purchase foreign currency.
- Lower domestic interest rates: Lower returns on savings cause hot money outflows; investors sell domestic currency to invest abroad, reducing demand and increasing supply of the currency.
- Higher relative inflation: Domestic goods become less competitive, reducing export demand (lower currency demand) and increasing import demand (higher currency supply).
- Negative speculation: Currency traders anticipating a future fall in the exchange rate sell the currency today, expanding supply.

Award up to 6 marks for analysis:
- Concept of depreciation: fall in the value / price of a currency in terms of another currency under a floating system (1)
- Fall in demand for exports (1), leading to a decrease in demand for the currency on the foreign exchange market (1)
- Rise in demand for imports (1), leading to an increase in the supply of the currency as it is sold to buy foreign currencies (1)
- Fall in domestic interest rates relative to abroad (1), causing hot money outflows / less capital inflow, decreasing currency demand and/or increasing supply (1)
- Higher relative inflation rate (1), making exports less competitive and imports more attractive (1)
- Speculation / loss of investor confidence (1), causing traders to sell the currency (1)

Maximum of 6 marks. A maximum of 3 marks if only one cause is analysed in detail.

An increase in indirect taxation on petrol can provide significant economic benefits. Firstly, petrol consumption generates external costs, such as air pollution, greenhouse gas emissions, and traffic congestion. A higher indirect tax raises the market price of petrol, encouraging drivers and firms to reduce fuel consumption, switch to public transport, or adopt electric vehicles, thereby moving the market closer to the socially optimal level of output. Secondly, the tax yields substantial revenue for the government. These funds can be reinvested into public infrastructure, education, or healthcare, or used to subsidise renewable energy alternatives. However, increasing petrol taxes also involves disadvantages. Petrol is an essential input for many transport and logistics firms; higher fuel duties increase operating costs across the supply chain, which firms pass on to consumers through higher prices, potentially causing cost-push inflation. Furthermore, demand for petrol tends to be price-inelastic in rural areas where public transport is unavailable, meaning consumers face higher living costs without a viable substitute. Because indirect taxes are regressive, lower-income households spend a larger proportion of their income on fuel. In conclusion, whether the policy is beneficial overall depends on how price-elastic the demand for petrol is, whether affordable public transport alternatives exist, and how the government allocates the additional tax revenue raised.

Level 3 (6–8 marks): A reasoned, two-sided discussion analysing both why an increase in petrol taxes may benefit an economy and why it may not. There is clear economic logic, correct use of terminology (e.g. external costs, inelastic demand, regressive tax, cost-push inflation), and a justified conclusion. (For 8 marks, evaluation of the relative significance or dependence on specific economic factors is expected). Level 2 (3–5 marks): A clear analysis that is predominantly one-sided (benefits only or drawbacks only) or discusses both sides but lacks depth and detailed chains of reasoning. Level 1 (1–2 marks): Simple descriptive statements, identification of points without economic development, or a list of advantages/disadvantages. Indicative content: Why it might benefit: Raises government tax revenue; discourages consumption of a demerit/polluting good (reduces external costs/carbon emissions); reduces traffic congestion; incentivises innovation in public transport/green technology. Why it might not benefit: Increases transport and distribution costs leading to cost-push inflation; regressive nature disproportionately impacts low-income households; harms international competitiveness if transport costs rise; limited reduction in usage if demand is price inelastic.

The introduction of a national minimum wage (NMW) can be an effective policy to alleviate poverty. For low-wage workers who remain employed, a legally enforced wage floor directly increases earnings and disposable income, enabling households to afford basic necessities such as food, shelter, and healthcare. This can raise living standards and reduce relative and absolute poverty. Furthermore, higher wages can increase worker motivation and productivity while incentivising economically inactive individuals to enter the labour force. However, an NMW might not reduce poverty effectively in all circumstances. If the minimum wage is set significantly above the free market equilibrium wage, firms face higher labour costs. To protect profit margins, employers may cut jobs, reduce working hours, or substitute labour with capital, leading to higher unemployment among low-skilled workers. Those who become unemployed will experience a fall in income, worsening poverty. Additionally, higher wage costs may lead to cost-push inflation as businesses raise prices, eroding the real purchasing power of the higher wages. The NMW also does not directly assist people who cannot work, such as pensioners or people with disabilities. In conclusion, an NMW is most likely to reduce poverty if it is set at a moderate level that businesses can absorb without shedding labour, and if it is supported by targeted welfare benefits and education/training programmes.

Level 3 (6–8 marks): A reasoned, two-sided discussion analysing how an NMW can reduce poverty as well as reasons why it may be ineffective or increase poverty. Clear economic analysis using terms such as equilibrium wage, real income, unemployment, and purchasing power, with a balanced conclusion. Level 2 (3–5 marks): Analytical discussion that is one-sided or lacks detailed causal links on one side. Level 1 (1–2 marks): Basic identification of points or simple descriptions of wages/poverty without economic development. Indicative content: Why it might reduce poverty: Raises earnings of low-paid workers; increases disposable income to afford basic needs; increases incentive to work; reduces worker exploitation; narrows income inequality. Why it might not reduce poverty: May cause unemployment/layoffs if set above equilibrium; firms may reduce hours or non-wage benefits; higher costs may cause inflation eroding real gains; does not benefit those outside the labour force (unemployed, sick, elderly); may encourage informal/illegal employment.

Imposing tariffs on imported manufactured goods can benefit a domestic economy in several ways. Firstly, tariffs increase the price of foreign manufactured products, making domestically produced goods relatively cheaper and more attractive. This increases demand for domestic products, encouraging local firms to expand output and hire more labour, which reduces unemployment. Secondly, tariffs can protect emerging domestic industries (the infant industry argument), giving them time to grow, achieve internal economies of scale, and become internationally competitive. Tariffs also raise revenue for the government and can reduce expenditure on imports, potentially improving the balance of payments on the current account. Conversely, tariffs impose notable economic disadvantages. They restrict consumer choice and raise retail prices for households, which reduces consumer surplus and real incomes. If domestic manufacturers rely on imported components or machinery, tariffs increase production costs, damaging the competitiveness of downstream industries. Furthermore, protecting domestic firms shields them from international competition, which can foster inefficiency, lower quality, and reduce innovation. Crucially, foreign trading partners may retaliate by imposing their own trade restrictions on the country's exports, leading to trade disputes and lower total global output. In conclusion, tariffs may provide short-term benefits to specific industries, but their overall success depends on whether trading partners retaliate and whether the protected domestic industries use the temporary shelter to increase their efficiency and productivity.

Level 3 (6–8 marks): A well-developed, two-sided evaluation considering both the benefits of imposing tariffs and the costs/drawbacks. Sound analysis of economic mechanisms (e.g. infant industry, retaliation, consumer surplus, current account), culminating in a reasoned and supported judgement. Level 2 (3–5 marks): Analytical response that covers only one side in depth or provides shallow reasoning on both sides. Level 1 (1–2 marks): Simple descriptive points or definitions with little or no economic analysis. Indicative content: Why tariffs may benefit: Protects domestic employment; protects infant/sunrise or strategic industries; reduces imports and improves current account balance; raises government revenue; prevents dumping. Why tariffs may not benefit: Increases prices for consumers and lowers real living standards; reduces choice and competition; risks retaliation/trade wars; causes domestic producers to become inefficient; increases costs of imported capital/raw materials.