2021 HSC Economics: Worked Solutions

Worked solutions to the 2021 HSC Economics examination.

Get the paper first. These solutions describe each question rather than reproducing it, so open the official paper alongside. NESA publishes it free in the 2021 Economics exam pack. The answers below are checked against the official marking guidelines. The explanations are our own.

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Section I: multiple choice

Answer key

Q	A	Q	A	Q	A	Q	A
1	A	6	B	11	B	16	D
2	B	7	D	12	D	17	A
3	C	8	C	13	C	18	D
4	A	9	B	14	C	19	B
5	B	10	D	15	A	20	C

The reasoning

1. Role of the WTO. A. To resolve trade disputes, alongside administering multilateral trade rules. Low-interest loans are the World Bank. The WTO does not set tariff rates: it negotiates limits on them, and member governments set their own within those bounds. Trading blocs form independently of the WTO.

2. Small population, wide export base, high per capita income. B. Advanced. High income per capita is the decisive marker, and a wide export base indicates diversification rather than dependence on a single commodity. "Economic forum" is not an economy classification at all, and it is there to catch guessing.

3. NOT in the National Employment Standards. C. The national minimum wage is set separately by the Fair Work Commission through the annual national minimum wage order. The NES cover leave, hours, public holidays, flexible working requests, redundancy pay and notice, which are entitlements rather than the wage rate itself.

4. Deficit plus an unexpected downturn. A. Tax revenue falls, because there is less income, employment and spending, and the deficit increases, because there is less revenue and more unemployment benefits. These are the automatic stabilisers operating: the Budget position deteriorates without any policy decision, and that deterioration is itself counter-cyclical support.

5. Deliberate changes in fiscal policy. B. The structural component of the Budget is the part attributable to discretionary policy decisions. The cyclical component is the part driven by the state of the economy through the automatic stabilisers. Headline and underlying cash balances are measures of the outcome, not decompositions of its cause.

6. Gini rises from 0.2 to 0.3. B. A higher Gini means more inequality, so look for a regressive change: an increase in a tax on consumption. Consumption taxes take a larger share of income from low-income households, who spend a greater proportion of what they earn. A higher tax-free threshold, more training and more welfare spending would all reduce inequality.

7. Correct statement about an automatic stabiliser. D. Bracket creep, meaning taxpayers moving into higher tax brackets as nominal incomes rise, increases the average tax rate without any legislated change, withdrawing spending power and slowing growth. That is the definition of automatic. Options A, B and C all describe discretionary changes, because someone had to decide to change the rate or the spending.

8. Increase in free trade. C. Larger quotas, permitting more imports, and lower tariffs both reduce protection. Watch the direction words carefully: in option D, decreasing the size of quotas is more protection, and export incentives and subsidies are themselves forms of protection, so increasing them in option B works against free trade.

9. Moving from a current account deficit to a surplus. B. A decrease in the price of imports reduces the value of import debits, and a depreciation improves international competitiveness, lifting export volumes and reducing import volumes. Both improve the balance on goods and services. Every other option contains at least one element that worsens the current account. Option C pairs a genuine improvement, being higher export prices, with a deterioration, being higher debt servicing, which makes it indeterminate.

10. Moving GDP from X to Y on the business cycle. D. The movement required is contractionary, reducing the level of activity from an above-trend point. That means raising taxation, withdrawing disposable income, and raising the cash rate, reducing consumption and investment. Both instruments must push the same way, which eliminates the mixed options.

11. Inflation rate in Year 3. B.

Inflation = (CPI₃ − CPI₂) ÷ CPI₂ × 100
          = (148 − 140) ÷ 140 × 100
          = 5.71%

The 6.2% option divides by the Year 1 CPI of 130, which is the wrong base. Always divide by the earlier year in the pair you are measuring.

12. An increase in the marginal propensity to save. D. Both decrease.

k = 1 ÷ MPS

A higher MPS means a smaller multiplier, so any given injection generates a smaller increase in national income. More saving is also more leakage from the circular flow, reducing national income directly. This is the paradox of thrift: what is prudent for an individual household is contractionary in aggregate.

13. Correct statement about public goods. C. Anyone can benefit without paying directly, which is non-excludability, and it creates the free rider problem that prevents private firms from supplying public goods profitably. Option A describes rivalry, which public goods do not exhibit. Option B is the opposite of the truth. Option D confuses public goods with public services that are means-tested.

14. Migrant workers remitting money overseas. C. Secondary income debit. Secondary income covers transfers with no corresponding good, service or asset in return: remittances, foreign aid, pensions paid abroad. It is a debit because money leaves Australia. Primary income is returns to the factors of production, meaning interest, dividends and wages for work performed.

15. Increases both the participation rate and the unemployment rate. A. An increase in the minimum wage raises the return to working, drawing people into the labour force so participation rises, while raising the cost of labour above the market-clearing wage for the least productive workers, reducing quantity of labour demanded so unemployment rises. Both effects follow from the same change.

Option C is the trap. Hidden unemployment means discouraged workers, who are outside the labour force by definition, so more of them lowers participation.

16. NOT an externality. D. Decreased travel times for users. Users are parties to the transaction, because they pay the toll and receive the time saving, so that is a private benefit rather than a spillover. Noise pollution, traffic diverted onto local streets and higher nearby land values all fall on third parties who are not part of the transaction, so all three are externalities.

17. Unemployment rate and participation rate. A.

Unemployment rate = unemployed ÷ labour force × 100
  Year 1: 2.5 ÷ 13.6 = 18.4%
  Year 2: 2.3 ÷ 14.3 = 16.1%     →  DECREASED

Participation rate = labour force ÷ working-age population × 100
  Year 1: 13.6 ÷ 25 = 54.4%
  Year 2: 14.3 ÷ 26 = 55.0%      →  INCREASED

The part-time employment column is a distractor, because it appears in neither formula.

18. BOGS and the financial account. D.

BOGS = exports − imports = 125 − 110 = +$15 billion

Current account = BOGS + net primary income + net secondary income
                = 15 + (−30) + (−20) = −$35 billion

CA + capital account + financial account = 0
−35 + (−45) + Z = 0   →   Z = +$80 billion

Options A and B invert the sign on BOGS. A $125bn export figure against $110bn of imports is a surplus.

19. Defending a managed exchange rate. B. Increased demand has pushed the currency above the top of the band, so the central bank must depreciate it. Lowering the cash rate narrows the interest rate differential, reducing capital inflow and demand for the currency.

Option D is the trap: buying domestic currency increases demand and pushes the rate up, which is the wrong direction. To depreciate through market operations the bank would sell domestic currency.

20. Real economic growth in Year 3. C.

Real GDP = nominal GDP ÷ CPI × 100
  Year 2: 250 ÷ 115 × 100 = 217.4
  Year 3: 300 ÷ 125 × 100 = 240.0

Real growth = (240.0 − 217.4) ÷ 217.4 × 100 = 10.4%

The 20% option is nominal growth. Note the Year 1 row is not needed, because an extra row of data is not an instruction to use it.

Where marks were lost. Question 15 caught candidates who reached for hidden unemployment without checking which direction it moves participation. Question 19 caught candidates who confused buying the currency with depreciating it. Question 16 was the best-designed question in the paper, because the wrong answer is genuinely a benefit, just not an external one.

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Section II: short answer

Question 21 (10 marks): the global economy

(a) Outline ONE influence of the G20 on the global economy (2 marks).

The G20 provides a forum for the world's largest economies to coordinate macroeconomic policy. Its most significant influence was the coordinated fiscal and monetary response to the global financial crisis in 2008 and 2009, where members agreed to simultaneous stimulus. Because economies are linked through trade and financial flows, a coordinated response is more effective than unilateral action, since each country's stimulus supports demand for the others' exports instead of leaking away.

One influence, with the mechanism. The reason coordination matters is what earns the second mark.

(b) Distinguish between trading blocs and monetary unions (2 marks).

A trading bloc is a group of economies that enter a formal preferential trading agreement, reducing barriers between members while maintaining them against non-members, such as the ASEAN Free Trade Area. A monetary union goes further, because member economies share a common currency and a single monetary policy, as in the Eurozone. The key difference is depth of integration: a trading bloc integrates goods markets while retaining independent currencies and monetary policy, whereas a monetary union surrenders both.

Distinguish requires the difference stated explicitly, not two definitions left side by side.

(c) Evaluate strategies used to promote economic development in an economy other than Australia (6 marks).

Name the economy, because the answer space demands it. Six marks with evaluate means you need judgement supported by data. Using Brazil:

Conditional cash transfers. The Bolsa Família program, introduced in 2003 and 2004, paid small cash transfers to poor households conditional on keeping children in school and attending preventative health checks. The design is what makes it effective: it relieves poverty immediately while simultaneously building human capital, so it addresses both the symptom and the cause. Reaching around a quarter of the population at a cost of roughly 0.5% of GDP, it contributed to a fall in the proportion of Brazilians living on under US$2 a day from about 23% in 2002 to under 4% within a decade, and to a decline in the Gini coefficient over the same period. Judged against cost, this was a highly effective strategy.

Infrastructure investment. The Growth Acceleration Program committed around US$349 billion between 2007 and 2010 to transport, energy and urban infrastructure, addressing the supply-side bottlenecks constraining productivity. Its execution was far weaker, because many projects ran years behind schedule and the program suffered significant waste and mismanagement. Brazil's HDI rose from about 0.70 in 2005 to 0.755 in 2015, so the direction was right, but the return per dollar was poor.

Evaluation. The transfer program was the more effective strategy, because it was administratively simple, precisely targeted and difficult to divert, whereas the infrastructure program depended on state capacity Brazil did not have. The broader lesson is that a development strategy's effectiveness depends less on the size of the spending than on the quality of the institutions delivering it. Brazil's subsequent recession from 2014 exposed a further limitation, which is that development funded by a commodity boom is vulnerable when the terms of trade reverse.

If you prepared China or Indonesia instead, the structure transfers directly: name two strategies, give data on outcomes, then judge which worked better and why.

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Question 22 (10 marks): market failure and the environment

(a) Draw the total cost to society of producing plastic bottles (1 mark).

Draw the marginal social cost curve above and to the left of the private cost curve, running roughly parallel to it, and label it clearly.

The vertical distance between the two curves is the external cost, meaning the pollution and waste imposed on third parties that the producer does not pay for. Because private cost sits below social cost, the market produces more than the socially optimal quantity. If you have time, mark the socially optimal output where MSC meets the benefit curve, and shade the deadweight loss triangle between the two output levels. One mark, but it takes fifteen seconds.

(b) Explain how ONE market-based policy affects environmental sustainability, with an example (4 marks).

The example is compulsory and worth a mark on its own.

A market-based policy uses the price mechanism to change behaviour, altering financial incentives instead of mandating outcomes directly. A carbon tax is the clearest example.

A carbon tax places a price on each tonne of greenhouse gas emitted. This raises the marginal private cost of emissions-intensive production so that it more closely reflects the marginal social cost, internalising the externality. Producers respond by reducing output of emissions-intensive goods, switching to lower-emission inputs, or investing in abatement technology, whichever is cheapest for them. Consumers face higher prices for emissions-intensive goods and substitute towards alternatives. Output moves towards the socially optimal level and emissions fall.

Example: Australia's carbon pricing mechanism operated from July 2012, starting at $23 per tonne. Emissions from the electricity sector fell measurably during its operation, with generation shifting from higher-emission brown coal towards black coal and gas. The scheme was repealed in July 2014.

The strength of a market-based approach is efficiency, because abatement occurs wherever it is cheapest instead of being dictated by a regulator who cannot know each firm's abatement costs.

(c) Explain the limitations of economic policies in achieving environmental sustainability (5 marks).

Political constraints are the binding limitation in Australia. Environmental policy imposes concentrated, immediate, visible costs while its benefits are diffuse, delayed and shared globally, which makes it politically vulnerable. The carbon pricing mechanism was legislated in 2011, commenced in 2012 and repealed in 2014. The Minerals Resource Rent Tax was substantially weakened before passage and repealed shortly after. The resulting policy uncertainty is itself a limitation, because energy investment has a thirty-year horizon and firms will not commit capital when the policy framework may not survive the next election.

Time lags. Environmental policies require legislation, administrative machinery and behavioural change, so recognition, implementation and impact lags are all long. Environmental damage continues to accumulate during the delay, and some of it, including species loss and ice sheet melt, is irreversible, which makes the lag more costly here than in other policy areas.

The global nature of the problem. Climate change is a global externality, but policy is national. Australia produces slightly over 1% of global emissions, so unilateral action cannot solve the problem, and any economy that acts alone bears the costs while the benefits accrue globally. That is the free rider problem. The United States' withdrawal from the Paris Agreement in 2017 demonstrated how fragile international coordination is.

Conflict with other objectives. Environmental policy conflicts with growth, employment in resource regions, price stability and external stability, so governments face a genuine trade-off rather than a costless choice.

Measurement and valuation. Pricing an externality requires valuing environmental damage in dollars, which involves contested assumptions about discount rates and the value of outcomes decades ahead. Policy set on the wrong price is either ineffective or unnecessarily costly.

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Question 23 (10 marks): inflation and unemployment

(a) Impact of an increase in the minimum wage on cost inflation (2 marks).

An increase in the minimum wage raises unit labour costs for firms employing low-wage workers. Where the wage rise is not matched by a corresponding rise in productivity, firms pass the higher costs into prices to protect margins, generating cost-push inflation. The effect is largest in labour-intensive industries such as retail and hospitality, where wages are the dominant cost.

The qualifier about productivity growth is what makes this economics rather than assertion.

(b) Explain the effects of low inflation on the Australian economy (4 marks).

Be careful with this one. Low inflation is not the same as high inflation, and the effects are largely beneficial, so write the economics correctly.

International competitiveness improves. If Australian inflation is lower than that of trading partners, Australian goods become relatively cheaper in world markets. Export volumes rise and imports become relatively less attractive, improving the balance on goods and services and the current account. Competitiveness depends on the inflation differential, not the absolute rate.

Real incomes and purchasing power are preserved. Low inflation means the real value of wages and savings erodes slowly, protecting the living standards of those on fixed incomes and encouraging saving instead of the flight into assets that high inflation provokes.

Certainty improves. Stable, predictable prices allow firms to plan investment and price contracts with confidence, and allow households to plan long-term commitments. This supports higher investment and therefore higher long-run growth, which is the reason price stability is an objective in the first place.

Policy flexibility. With inflation inside the 2 to 3% target band, the RBA has room to cut interest rates in a downturn without breaching its mandate.

Inflation that is too low carries risks of its own. Persistently below-target inflation, as Australia experienced from 2015 to 2020, drives nominal interest rates towards the effective lower bound, leaving monetary policy little room to respond to a shock. It also makes real wage adjustment harder, because nominal wages are sticky downwards, and it raises the real burden of existing debt.

That final paragraph, recognising that inflation can be too low, is what distinguishes a four-mark answer.

(c) How microeconomic policies can reduce the NAIRU, with an Australian example (4 marks).

The NAIRU is the rate of unemployment at which inflation is stable, meaning the level below which competition for scarce labour drives wage growth, and therefore inflation, upwards. It is determined by structural factors, principally the match between the skills workers hold and the skills employers need, so it can only be reduced by policies operating on the supply side of the labour market.

Education and training policies reduce the skills mismatch, moving workers from structural unemployment into employment. Because these workers become available to fill vacancies, the same rate of vacancies generates less upward wage pressure, so the NAIRU falls and the economy can sustain lower unemployment without accelerating inflation.

Improved job matching, through employment services and better labour market information, reduces frictional unemployment by shortening search times. Labour mobility measures, including relocation assistance and the recognition of qualifications across states, allow workers to move to where vacancies are.

Australian example: the 2020 to 2021 Budget funded the Skills for Education and Employment program with $49.5 million to improve foundational language, literacy and numeracy skills. Workers lacking these skills are effectively unemployable regardless of the state of demand, so equipping them moves them from structural unemployment into the effective labour supply, reducing the NAIRU. The much larger JobTrainer fund, announced in 2020, targeted the same mechanism at scale.

Any specific, named, dated program earns the example mark. A vague reference to "government training programs" does not.

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Question 24 (10 marks): exchange rates

(a) How increased global protectionism affects demand for the AUD (2 marks).

An increase in protectionist policies overseas restricts access to foreign markets for Australian exporters, reducing export volumes and values. Since foreign buyers must purchase Australian dollars to pay for Australian exports, lower export demand means lower demand for the AUD, shifting the demand curve left and placing downward pressure on the currency.

(b) How the AUD can appreciate against the USD and depreciate against the TWI simultaneously (3 marks).

The Trade Weighted Index measures the AUD against a basket of the currencies of Australia's major trading partners, with each weighted by its share of Australia's trade. The US dollar is only one currency in that basket, and its weight is well below its prominence in financial reporting, since the Chinese renminbi carries roughly four times the weight.

The two measures can therefore move in opposite directions. If the AUD rises against the USD but falls by more against the renminbi, yen and won, currencies carrying larger combined weight, the weighted average falls even though the headline AUD/USD rate rose.

This is why the TWI is the better measure of Australia's international competitiveness. The AUD/USD rate reflects conditions in the United States as much as in Australia, so a weakening USD raises the AUD/USD rate without Australia's overall competitive position changing at all.

(c) Analyse the effects of an appreciation of the AUD on the Australian economy (5 marks).

An appreciation raises the foreign-currency price of Australian exports and lowers the domestic-currency price of imports.

Trade and external stability. Exporters lose international competitiveness, so export volumes and values fall, particularly in price-sensitive industries such as tourism, education, manufacturing and agriculture. Imports become cheaper, so import volumes rise. The balance on goods and services deteriorates, worsening the current account. Working the other way, the appreciation reduces the AUD value of foreign-currency-denominated debt and its servicing cost, improving net primary income and lowering net foreign liabilities through the valuation effect.

Growth and employment. Falling net exports reduce aggregate demand, slowing economic growth and reducing derived demand for labour in trade-exposed industries. Offsetting this, cheaper imported capital equipment and intermediate inputs lower production costs for domestic firms, raising aggregate supply and productive capacity over the longer term.

Inflation. Cheaper imports directly reduce the prices of imported consumer goods and reduce imported input costs, producing imported disinflation. This eases pressure on the CPI and gives the RBA room to hold interest rates lower than it otherwise could.

Structural change and distribution. Sustained appreciation, particularly during a commodity boom, shifts resources away from non-resource tradeable industries, which is Dutch disease. Income is redistributed towards importers, consumers and travellers and away from exporters and import-competing producers, with regionally concentrated employment effects.

The effects therefore work in opposite directions on different objectives. The appreciation is contractionary and worsens the current account, but it is disinflationary and improves external stability on the liabilities side. Which dominates depends on why the currency appreciated: an appreciation caused by rising commodity prices arrives alongside a national income gain that offsets much of the competitiveness loss, whereas one caused purely by capital inflow does not.

That last sentence is the analyse verb answered. It is also the single most common thing missing from otherwise strong responses.

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Section III: stimulus-based extended response

Both options in 2021 asked you to evaluate the effectiveness of one macroeconomic policy against three named objectives. Structure by objective, not by instrument, and reach a separate judgement on each.

Question 25: fiscal policy, unemployment, income distribution and external stability

The stimulus paired an RBA chart of the Australian Government Budget balance, showing the collapse into a record deficit in 2020, with a Budget statement describing JobKeeper, Boosting Cash Flow for Employers, the Coronavirus Supplement and early release of superannuation, and the transition towards targeted measures to "drive the unemployment rate back down".

Thesis. Australia's fiscal response to the pandemic was highly effective in managing unemployment, moderately effective and deliberately progressive in its effect on income distribution, but it substantially weakened external stability in the public debt sense. Its effectiveness overall rested on the fiscal capacity accumulated before the crisis.

The plan:

1. Set up. Define fiscal policy and the Budget outcome. Use the chart: the Budget moved from near balance to a deficit of around $134 billion, roughly 6.5% of GDP, the largest since the Second World War.
2. Unemployment, highly effective. JobKeeper was a wage subsidy paying employers to retain staff, preserving the employment relationship instead of paying people after the job was lost. That is the key analytical point, because preserving matches avoids the skill atrophy and re-matching costs that turn cyclical unemployment into structural unemployment. Unemployment peaked at about 7.5% in July 2020 against Treasury forecasts of 15%, and recovered to pre-pandemic levels within about eighteen months. Also apply the multiplier: transfers to households with a high MPC generate larger second-round effects.
3. Unemployment, the limitations. JobKeeper was poorly targeted, with a flat payment that exceeded the previous income of many part-time workers and support flowing to firms whose revenue subsequently rose. It also suppressed labour mobility by tying workers to existing employers. Time lags were short here only because the emergency overrode the normal Budget cycle.
4. Income distribution, effective in direction. The Coronavirus Supplement roughly doubled JobSeeker, temporarily lifting hundreds of thousands of people above the poverty line, the largest single reduction in measured poverty in decades. Progressive income tax and means-tested transfers are the standard mechanisms.
5. Income distribution, the limitations. Support was temporary and withdrawn from March 2021, so measured poverty rose again. Casual workers with under twelve months' service and most temporary visa holders were excluded from JobKeeper. Early release of superannuation shifted the cost onto the retirement incomes of the lowest paid, worsening long-run wealth distribution. The low interest rates that accompanied the stimulus also inflated asset prices, disproportionately benefiting existing owners.
6. External stability, weakened. Gross public debt rose above $800 billion. Where deficits are funded by overseas borrowing they add to foreign liabilities and future net primary income outflows. Note the important nuance: Australia's debt is denominated in Australian dollars, so it carries no currency risk, and the debt servicing ratio remained low by historical standards because interest rates were at record lows. Also note the offset, since the current account was in surplus throughout, so the external position on the trade side actually improved.
7. Evaluation. Judge each objective separately: highly effective on unemployment, effective but temporary and uneven on distribution, negative but manageable on public debt. Then make the broader point, which is that the response was possible because Australia entered the crisis with low public debt, so fiscal consolidation in good times is what buys the capacity to act in bad times.

Question 26: monetary policy, growth, income distribution and external stability

The stimulus gave an RBA chart and a statement noting the cash rate cut twice in March 2020 to 0.25% and again to 0.10% on 3 November 2020, boosting business and household cash flow, helping trade-exposed industries "through the exchange rate", while acknowledging that low rates "have negative consequences for some people, especially those relying on interest income", with the Board's judgement that lower rates "benefit the community as a whole".

Thesis. Monetary policy was effective in supporting growth through the pandemic and improved external competitiveness through the exchange rate, but it worsened the distribution of income and wealth, a trade-off the RBA itself acknowledged, and its effectiveness was constrained by the effective lower bound on interest rates.

The plan:

1. Set up. Define monetary policy and the cash rate. Explain the transmission mechanism: cash rate to market interest rates to consumption, investment, cash flow, asset prices and the exchange rate.
2. Growth, effective. Quote the stimulus on cash flow. Lower rates reduce debt servicing for mortgaged households and geared firms, freeing income for spending. They reduce the cost of capital, supporting investment, and they raise asset prices, generating a wealth effect. Add the unconventional measures the stimulus implies: yield curve control on the three-year bond, the Term Funding Facility providing cheap funding to banks, and bond purchases. Australia's recession was among the shortest and shallowest in the developed world.
3. External stability, effective. Quote the stimulus directly on trade-exposed industries. Lower rates narrow the interest rate differential, reducing capital inflow and demand for the AUD, and the depreciation improves the international competitiveness of exporters and import-competing producers, supporting the balance on goods and services. The AUD fell below US$0.60 in March 2020. Note the counterweight: a lower AUD raises the domestic-currency value of foreign-currency debt.
4. Income distribution, the weakness, and the heart of the question. The stimulus concedes it. Low rates transfer income from savers to borrowers, so retirees and others dependent on interest income lost real income while mortgage holders gained. More significantly, low rates inflated asset prices, with housing rising sharply through 2020 and 2021, which benefits existing owners and prices out first home buyers. Since asset ownership is far more concentrated than income, expansionary monetary policy widens the distribution of wealth. This is the strongest criticism available and the essay should not treat it as a footnote.
5. Limitations. The effective lower bound: at 0.10% the conventional instrument was exhausted, forcing reliance on unconventional measures whose effects are less well understood. Long and variable time lags of six to eighteen months. Monetary policy is a blunt instrument, so it cannot be targeted at a region or sector. And it is powerless against supply-side inflation, as the 2022 episode demonstrated. The RBA's own forward guidance that rates were unlikely to rise until 2024 later damaged its credibility when it began tightening in May 2022.
6. Evaluation. Effective on growth, effective on external competitiveness, negative on distribution. The RBA's judgement that low rates benefit "the community as a whole" is defensible on aggregate grounds but concedes that the gains and losses fall on different groups. Since the RBA's mandate is price stability, full employment and prosperity rather than distribution, the deeper point is that distributional consequences require a fiscal response, because monetary policy has no instrument capable of addressing them.

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Section IV: extended response

Both 2021 options carry the qualifier "over the last ten years". Dated evidence is not optional decoration here. It is part of the question.

Question 27: free trade agreements and protectionist policies in the global economy

Assess requires a judgement about relative importance and effect.

Thesis. The past decade saw simultaneous movement in both directions, with a proliferation of regional and bilateral trade agreements alongside a resurgence of protectionism unmatched since the 1930s. The net effect has been a shift from multilateral liberalisation towards a fragmented, bloc-based trading system that is less efficient but more resilient.

The plan:

1. The multilateral stall. The WTO Doha Round has been effectively dead since 2008, and the Appellate Body ceased functioning in December 2019 when the United States blocked appointments, leaving the dispute settlement system without an appeal stage. This is the single most important structural change in the period.
2. The regional response. With multilateralism stalled, economies turned to preferential agreements: the CPTPP in 2018, covering eleven economies after US withdrawal, RCEP signed in 2020 with fifteen economies and the largest bloc by GDP, the African Continental Free Trade Area, and a long list of bilaterals including Australia's agreements with China, Japan, Korea, India and the UK.
3. Effects of the agreements. Trade creation, specialisation according to comparative advantage, lower consumer prices, and, most importantly for RCEP, harmonised rules of origin that lower the administrative cost of regional supply chains. Against this sits trade diversion, where preferential access shifts trade towards members and away from more efficient non-members, so a preferential agreement is not the same as free trade.
4. The protectionist resurgence. The US and China tariff escalation from 2018 covered hundreds of billions of dollars of trade. China's trade measures against Australian barley, wine, coal, timber and seafood from 2020 demonstrated trade as an instrument of geopolitical rather than economic policy. The pandemic triggered export restrictions on medical supplies and later on food, and prompted policies of sovereign capability and reshoring.
5. Effects of protectionism. Higher consumer prices, retaliation, supply chain disruption, deadweight loss and misallocation of resources. Note the arguments made for it: supply chain resilience after the pandemic exposed the fragility of just-in-time global production, and national security concerns in semiconductors and critical minerals.
6. Assessment. Trade agreements delivered measurable gains but of diminishing scale, because the easy liberalisation has already been done and preferential deals carry diversion costs. Protectionism imposed clear efficiency losses. The most consequential development is neither in isolation but the erosion of the rules-based multilateral system, which removes the constraint that previously prevented large economies from acting unilaterally. The system has become less efficient and more fragmented, and the economies most exposed are small open trading economies, of which Australia is one.

Question 28: changes in the global economy and Australia's trade and financial flows

Thesis. Over the past decade Australia's trade and financial flows have been reshaped by four global developments: China's growth and its transition, the commodity price cycle, the pandemic, and the decade of ultra-low global interest rates. Together these produced an unprecedented shift from persistent current account deficits into surplus and a corresponding fall in reliance on foreign capital.

The plan:

1. China's growth and rebalancing. China's demand for iron ore, coal and LNG drove the terms of trade and remains the dominant influence on Australia's export values. China took roughly 30 to 40% of Australia's goods exports across the period, a concentration without precedent among Australia's trading partners.
2. The commodity cycle. The terms of trade peaked in 2011, declined through the mid-decade, then rose sharply from 2020 on record iron ore prices driven by Chinese stimulus and Brazilian supply disruption. Trace the consequences through export values, national income, government revenue, the AUD, and the transition from the mining investment boom to the mining production phase.
3. The structural shift into current account surplus. Australia recorded its first current account surplus in 44 years in June 2019 and sustained it. Explain both causes: strong export values, and, less obviously, the maturing superannuation system generating national savings large enough to close the savings and investment gap that had produced deficits for four decades. This is the single most analytically impressive point available in this question.
4. The pandemic. Border closures collapsed services exports, meaning tourism and education, Australia's largest service exports. Goods exports held up. Import compression and supply chain disruption exposed dependence on imported intermediate and capital goods.
5. Financial flows. A decade of near-zero global interest rates drove the global search for yield and cheap offshore funding for Australian banks. Australia became a net exporter of capital in some periods, reversing the historical pattern, as superannuation funds accumulated foreign assets. Net foreign liabilities as a share of GDP fell, which is the clearest evidence of improved external stability.
6. Trade tensions and diversification. China's measures against Australian exports from 2020 forced redirection of coal, barley and wine to India, Japan, Korea and the Middle East. Note what this demonstrated: goods exports proved more redirectable than expected, but at a cost, and the episode accelerated diversification through RCEP and the agreements with India and the UK.
7. Assessment. Australia's external position improved substantially over the decade on every conventional measure, whether current account, net foreign liabilities or the debt servicing ratio. But the improvement rests on commodity prices and on a single trading partner, and the structural component, being higher national savings through superannuation, is more durable than the cyclical component of the terms of trade. Distinguishing the two is what the top band rewards.

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What to do with this paper

Do it timed and closed-book first. Mark against NESA's published guidelines before reading any of the above, then classify every lost mark as knowledge, verb, data, timing or diagram.

Both Section III options here evaluate one policy against three objectives. That structure recurs constantly, and the mistake that costs the most marks is writing about the policy instead of the objectives. Write your three objective headings before your first sentence, and reach a separate judgement under each.

Related: 2022 worked solutions · 2023 worked solutions · The complete diagram guide · Every formula you need

Questions are described rather than reproduced. The 2021 examination paper and marking guidelines are © NSW Education Standards Authority and are available free from the NESA website. Answers verified against the official marking guidelines; explanations are our own.