Using a production possibilities curve diagram, explain how scarcity gives rise to choice and opportunity cost.
Using real-world examples, evaluate the view that choices intended to increase current economic well-being will necessarily reduce sustainability.
Using a production possibilities curve diagram, explain how the alternative uses of factors of production create opportunity cost.
Using real-world examples, discuss the view that labour is the most important factor of production for improving economic well-being.
Using an appropriate diagram, explain how a free market economy answers the basic economic questions of what to produce, how to produce and for whom to produce.
Using real-world examples, discuss whether increased government intervention is likely to improve the allocation of scarce resources in a mixed economy.
Using a circular flow of income diagram, explain the interdependence between households and firms.
Using real-world examples, evaluate the likely effects on economic well-being when households substantially reduce their consumption expenditure.
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Using production possibilities curve diagrams, explain the difference between actual economic growth and growth in production possibilities.
Using real-world examples, evaluate the view that growth in production possibilities always improves economic well-being.
Using an appropriate diagram, explain how individual economic choices can contribute to an economy-wide outcome.
Using real-world examples, discuss the usefulness of simplified economic models for understanding changes in economic well-being.
Read the extracts and answer the questions that follow.
Ardona is a mixed economy with limited coastal land. Hotels create employment and income, but their construction removes mangrove forests that protect communities from storms. The government must confront scarcity when deciding how much land to allocate to tourism and conservation.
Ardona currently operates inside its production possibilities curve (PPC). In Table 1, combinations A and B lie on the PPC, while combination U represents Ardona's current production inside the PPC because some workers and hotel buildings are unemployed. Training could improve labour productivity and expand production possibilities. However, continued tourism growth may reduce the environmental resources available to future generations.
Households receive wages from tourism firms and spend income on domestic services, save through banks, pay taxes and buy imports. Investment, government spending and exports return expenditure to domestic firms. These flows demonstrate interdependence between economic decision-makers.
The government is considering stricter planning controls, investment in worker training and public funding for mangrove restoration. Hotel owners argue that markets should determine how coastal land is used.
Annual production combinations in Ardona, showing each combination's position relative to the PPC.
| Combination | Tourist stays / thousand per year | Conservation units / year | Position relative to PPC |
|---|---|---|---|
| A | 20 | 90 | On PPC |
| B | 50 | 60 | On PPC |
| U | 35 | 45 | Inside PPC (current) |
Annual leakages and injections in Ardona.
| Flow type | Item | Amount / million ardos |
|---|---|---|
| Leakage | Saving | 18 |
| Leakage | Taxation | 24 |
| Leakage | Imports | 28 |
| Injection | Investment | 20 |
| Injection | Government spending | 30 |
| Injection | Exports | 25 |
Define the term scarcity indicated in bold in Text A, paragraph 1.
Define the term interdependence indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost, in conservation units, of each additional thousand tourist stays when Ardona moves from combination A to combination B.
Using Table 2, calculate the amount by which total injections exceed total leakages.
Using a PPC diagram, explain the scarcity, choice and opportunity cost involved in moving from combination A to combination B (Table 1).
Using a PPC diagram, explain how Ardona could achieve actual economic growth by moving from combination U towards combination B (Table 1).
Using a PPC diagram, explain how worker training could affect Ardona's production possibilities (Text A, paragraph 2).
Using a circular flow of income diagram, explain the likely effect of the relationship between leakages and injections shown in Table 2.
Using information from the texts/data and your knowledge of economics, evaluate whether greater government intervention in Ardona's coastal economy would improve economic well-being.
Read the extracts and answer the questions that follow.
Belvaria can use doctors, buildings and equipment to provide healthcare or other consumer services. Because each factor of production has alternative uses, more healthcare involves an opportunity cost.
Unemployment has left Belvaria at combination U, inside its PPC. Combinations A and B lie on the current PPC. The government proposes employing idle workers in public clinics and investing in medical education. Critics argue that consumers, rather than planners, should decide which services are produced.
Market allocation gives greater influence to households with greater purchasing power. The government claims that publicly provided clinics would improve equity, although an equal distribution of healthcare may not be viewed as fair by everyone.
Banks channel household saving to firms that invest in clinic equipment. Taxes finance government healthcare spending, while imported equipment creates a leakage to the foreign sector.
Annual production combinations in Belvaria, including their positions relative to the current PPC.
| Combination | Healthcare treatments / thousand | Consumer services / thousand | Position relative to current PPC |
|---|---|---|---|
| A | 30 | 100 | On the current PPC |
| B | 50 | 70 | On the current PPC |
| U | 35 | 50 | Inside the current PPC |
Annual circular-flow leakages and injections in Belvaria.
| Flow category | Annual value / million bels |
|---|---|
| Saving (leakage) | 40 |
| Taxation (leakage) | 55 |
| Imports (leakage) | 35 |
| Investment (injection) | 45 |
| Government spending (injection) | 60 |
| Exports (injection) | 30 |
Define the term opportunity cost indicated in bold in Text A, paragraph 1.
Define the term equity indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost of each additional thousand treatments when production moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain the opportunity cost of moving from A to B (Table 1).
Using a PPC diagram, explain how employing idle workers in clinics may create actual economic growth (Text A, paragraph 2 and Table 1).
Using a PPC diagram, explain how investment in medical education could affect Belvaria's production possibilities (Text A, paragraph 2).
Using a circular flow of income diagram, explain the role of banks in connecting household saving and firms' investment (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, discuss whether healthcare in Belvaria should be allocated mainly by markets or by government intervention.
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Read the extracts and answer the questions that follow.
Caruna possesses copper deposits, sunlight and skilled workers. Copper and sunlight are forms of land, while solar panels and mining machinery are capital. The same engineers cannot simultaneously work in both industries.
Expanding copper production raises export earnings but depletes a finite resource and damages water supplies. The government is considering directing more resources towards renewable electricity to improve sustainability.
Private mining firms respond to prices and profits. The state owns the electricity grid, regulates water use and funds engineering education. Caruna is therefore a mixed economy rather than a purely free market or planned economy.
A fall in foreign demand has left mines operating below capacity. The government expects domestic investment and renewable-energy exports to support expenditure and employment.
Annual production possibilities in Caruna.
| Production point | Copper output / thousand tonnes | Renewable electricity / GWh |
|---|---|---|
| A | 80 | 200 |
| B | 50 | 260 |
| U | 45 | 180 |
For the PPC questions, assume that A and B lie on Caruna's PPC and that U is an attainable point inside the PPC.
Annual circular-flow values in Caruna.
| Annual flow | Value / million caruns |
|---|---|
| Saving | 62 |
| Taxation | 70 |
| Imports | 88 |
| Investment | 75 |
| Government spending | 80 |
| Exports | 55 |
Define the factor of production land indicated in bold in Text A, paragraph 1.
Define the term sustainability indicated in bold in Text A, paragraph 2.
Using Table 1, calculate the opportunity cost in copper of each additional gigawatt-hour of renewable electricity when Caruna moves from A to B.
Using Table 2, calculate the amount by which total leakages exceed total injections.
Using a PPC diagram, explain the choice and opportunity cost represented by moving from A to B (Table 1).
Using a PPC diagram, explain how idle mining capacity may affect Caruna's current production (Text B, paragraph 2 and Table 1).
Using a PPC diagram, explain how engineering education may affect Caruna's productive capacity (Text B, paragraph 1).
Using a circular flow of income diagram, explain the likely effect when leakages exceed injections as shown in Table 2.
Using information from the texts/data and your knowledge of economics, evaluate Caruna's choice between expanding copper extraction and developing renewable energy.
Read the extracts and answer the questions that follow.
Darsen has limited freshwater but many competing agricultural and household uses. Water is therefore an economic good even when households receive a basic quantity without charge.
Farms can use labour-intensive irrigation or capital-intensive drip systems. The government must decide what food to support, how production should occur and for whom subsidized water should be provided.
Market prices could encourage water conservation, but low-income households might lose access to an essential need. The government proposes water quotas, progressive charges and investment in reservoirs. This intervention may improve sustainability but has administrative costs.
A drought has left agricultural workers unemployed. Reservoir construction could employ idle resources now and increase the future quantity of capital available for production.
Annual food and household-water combinations in Darsen.
| Combination | Food / thousand tonnes | Household water / million m | PPC status |
|---|---|---|---|
| A | 120 | 40 | On current PPC |
| B | 90 | 70 | On current PPC |
| U | 75 | 45 | Inside current PPC: underused resources |
Annual circular-flow leakages and injections in Darsen.
| Leakage | Value / million dinars | Injection | Value / million dinars |
|---|---|---|---|
| Saving | 25 | Investment | 38 |
| Taxation | 45 | Government spending | 52 |
| Imports | 30 | Exports | 20 |
Define the term economic good indicated in bold in Text A, paragraph 1.
Define the term intervention indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in food of each additional million cubic metres of household water when Darsen moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain the trade-off involved in moving from combination A to combination B (Table 1).
Using a PPC diagram, explain how employing drought-affected workers on reservoir construction could create actual economic growth (Text B, paragraph 2).
Using a PPC diagram, assuming that A and B are points on Darsen's current PPC, explain the trade-off involved in moving from combination A to combination B (Table 1).
Using a PPC diagram, assuming that U represents Darsen's current output at an interior point because resources are underused, explain how employing drought-affected workers on reservoir construction could create actual economic growth (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, discuss whether market prices or government intervention should play the larger role in allocating Darsen's scarce water.
Norland’s coastal region has limited land suitable for either housing construction or wetland restoration. Rising population has increased housing demand, while previous development has reduced natural flood protection and biodiversity. The government must decide how to allocate land, labour and capital between the two uses.
Table 1 shows estimated maximum production combinations over the next five years, assuming that resources are fully employed and technology remains unchanged.
Maximum five-year production combinations in Norland’s coastal region.
| Wetland restored / hectares | Homes constructed / number (over five years) |
|---|---|
| 0 | 5000 |
| 100 | 4800 |
| 200 | 4400 |
| 300 | 3800 |
| 400 | 3000 |
The region currently restores 200 hectares of wetland and constructs 3400 homes. The government expects that training construction workers in ecological engineering and improving land-remediation technology could increase future productive capacity.
Define the term scarcity.
Calculate the opportunity cost per additional hectare of increasing wetland restoration from 100 hectares to 200 hectares.
Calculate the opportunity cost per additional hectare of increasing wetland restoration from 200 hectares to 300 hectares and explain what the result indicates about opportunity cost.
Using the data in Table 1, draw a production possibilities curve for Norland’s coastal region and plot its current production combination.
Explain the difference between actual economic growth and growth in production possibilities in the context of Norland’s coastal region.
Explain how scarcity and sustainability affect Norland’s choice between housing construction and wetland restoration.
Using the text/data provided and your knowledge of economics, recommend a government land-allocation policy for Norland’s coastal region that addresses both housing needs and environmental sustainability.
Belland is a mixed economy experiencing unemployment of 8%. Construction firms have idle machinery, and some workers who previously built public infrastructure are unemployed. The government is considering whether to change taxation or government spending.
Table 1 shows annual leakages from and injections into Belland’s circular flow of income.
Annual leakages from and injections into Belland’s circular flow of income.
| Leakage | Value / billion bellars | Injection | Value / billion bellars |
|---|---|---|---|
| Saving | 18 | Investment | 22 |
| Taxation | 27 | Government spending | 31 |
| Imports | 35 | Exports | 29 |
Commercial banks report that some household saving is available to finance business investment. However, firms remain uncertain about future sales.
Define the term leakage.
Calculate Belland’s total annual leakages and total annual injections.
Determine the difference between total injections and total leakages.
Explain the likely effect of this difference on current output in Belland.
Draw a circular flow of income diagram for Belland, including households, firms, the government, the financial sector and the foreign sector.
Explain the interdependence between household saving, banks and firms in Belland.
Using the text/data provided and your knowledge of economics, recommend a government policy to increase current output and employment in Belland.
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Sanura is experiencing a prolonged drought. Water stored in its main reservoir can be supplied to households or used for agricultural production. Water treatment, pumps and distribution networks require scarce labour and capital, even when households are not directly charged for the water they receive.
Table 1 shows the maximum combinations of household and agricultural water that Sanura can distribute each month with its existing resources and technology.
Maximum monthly water distribution combinations in Sanura.
| Household water / million | Agricultural water / million |
|---|---|
| 0 | 120 |
| 20 | 108 |
| 40 | 92 |
| 60 | 70 |
| 80 | 40 |
Sanura currently distributes 40 million cubic metres to households and 80 million cubic metres to agriculture. The government is considering restrictions, prices and guaranteed minimum household allocations.
Define the term scarcity.
Calculate the opportunity cost per additional million cubic metres of increasing household water distribution from 20 million to 40 million cubic metres.
Calculate the opportunity cost per additional million cubic metres of increasing household water distribution from 40 million to 60 million cubic metres and explain why the PPC displays increasing opportunity cost.
Using the data in Table 1, draw Sanura’s production possibilities curve and plot its current allocation.
Explain how each of the four factors of production is involved in supplying water in Sanura.
Explain why treated water in Sanura is an economic good even if some households receive it free of charge.
Using the text/data provided and your knowledge of economics, recommend a policy for allocating Sanura’s scarce water between households and agriculture during the drought.
Using production possibilities curve diagrams, explain the difference between increasing opportunity cost and constant opportunity cost.
Using real-world examples, evaluate how the specialization of resources should influence a government's decision to reallocate resources between industries.
Using a circular flow of income diagram, explain the roles of the government, banks and financial sector, and foreign sector as sources of leakages and injections.
Using real-world examples, evaluate the likely effects on an economy when total injections remain greater than total leakages.
Using a production possibilities curve diagram, explain why productive efficiency does not necessarily result in equity.
Using real-world examples, discuss the view that government intervention to promote equity must reduce efficiency.
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Using a production possibilities curve diagram, explain why a good that is free of charge may still be an economic good.
Using real-world examples, evaluate the view that government intervention is necessary when a resource previously treated as a free good becomes scarce.
Read the extracts and answer the questions that follow.
Estaran firms are replacing some routine labour with robots. Robots are capital because they are human-made resources used to produce other goods and services; the funds used to purchase them are not themselves capital in this sense.
Automation may increase productive capacity, but displaced workers can leave current production inside the PPC. Retraining could allow labour to move into digital services.
Firms expect lower costs and higher profits. Workers fear reduced income, while consumers may benefit from cheaper output. The policy debate therefore concerns both productive efficiency and the distribution of economic well-being.
The government proposes retraining grants funded by taxation. Banks are also using household saving to finance firms' investment in new machinery.
Annual output combinations in Estara
| Combination | Manufacturing / thousand units | Digital services / thousand units |
|---|---|---|
| A | 160 | 40 |
| B | 120 | 100 |
| U | 100 | 55 |
Annual circular-flow leakages and injections in Estara.
| Flow type | Component | Value / million estars |
|---|---|---|
| Leakage | Household saving | 90 |
| Leakage | Taxation | 85 |
| Leakage | Imports | 75 |
| Injection | Investment | 105 |
| Injection | Government spending | 80 |
| Injection | Exports | 70 |
Define the factor of production capital indicated in bold in Text A, paragraph 1.
Define the term productive efficiency indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in manufactured units of each additional thousand digital-service units when production moves from A to B.
Using Table 2, calculate the amount by which total injections exceed total leakages.
Using a PPC diagram, explain why combination U is productively inefficient while combinations A and B are productively efficient (Table 1).
Using a PPC diagram, explain how automation could cause growth in Estara's production possibilities (Text A).
Using a PPC diagram, explain how worker displacement followed by successful retraining could affect Estara's actual output (Text A, paragraph 2).
Using a circular flow of income diagram, explain how household saving can finance firms' investment in robots (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, evaluate whether automation is likely to improve economic well-being in Estara.
Read the extracts and answer the questions that follow.
Faronia's beaches, fish stocks and surrounding waters are natural resources. Fishing crews provide labour, while boat owners organize production and bear business risks.
Tourist resorts create jobs but use coastal land and freshwater. Overfishing may increase present income while reducing future fishing possibilities. Faronia therefore faces choices involving current consumption and future well-being.
Foreign tourists purchase Faronian services, while residents import fuel and food. These relationships are represented by the circular flow of income.
The government is considering fishing limits and a tax on resort water use. Some firms argue that private markets will allocate resources more efficiently.

Annual expenditure flows in Faronia.
| Flow | Type | Amount / million faros |
|---|---|---|
| Saving | Leakage | 20 |
| Taxation | Leakage | 32 |
| Imports | Leakage | 48 |
| Investment | Injection | 28 |
| Government spending | Injection | 34 |
| Exports | Injection | 43 |
Define the factor of production labour indicated in bold in Text A, paragraph 1.
Define the circular flow of income indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in fish of each additional thousand tourist nights when production moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain the choice involved in moving from A to B (Table 1).
Using a PPC diagram, explain how overfishing could affect Faronia's future production possibilities (Text A, paragraph 2).
Using a PPC diagram, explain how unemployment in the tourism industry would be represented (Table 1).
Using a circular flow of income diagram, explain how foreign tourism and residents' purchases of imported fuel affect Faronia (Text B and Table 2).
Using information from the texts/data and your knowledge of economics, discuss whether Faronia should restrict fishing and resort water use.
Read the extracts and answer the questions that follow.
Galena's forests provide timber, biodiversity and protection from flooding. A private logging company is led by an entrepreneur who organizes land, labour and capital and bears the risk of uncertain timber prices.
Logging supports jobs and exports, but rapid forest loss threatens future production and community security. The government is considering conservation zones and reforestation grants.
Higher household income can improve material living standards, but economic well-being also depends on security, the ability to meet needs and whether benefits can be maintained.
A recession has left sawmills idle. Re-employing workers could increase actual output, while successful reforestation and training could affect long-run productive capacity.
Annual timber and ecosystem-service production combinations in Galena.
| Combination | Timber / thousand per year | Ecosystem services / units per year |
|---|---|---|
| A | 30 | 120 |
| B | 70 | 80 |
| U | 45 | 55 |
For the PPC questions, assume that A and B lie on Galena's current PPC and that U is an attainable point inside it. The data do not specify whether the PPC has increasing or constant opportunity cost.
Annual circular-flow leakages and injections in Galena.
| Flow | Type | Annual value / million galens per year |
|---|---|---|
| Saving | Leakage | 46 |
| Taxation | Leakage | 54 |
| Imports | Leakage | 65 |
| Investment | Injection | 50 |
| Government spending | Injection | 63 |
| Exports | Injection | 47 |
Define the factor of production entrepreneurship indicated in bold in Text A, paragraph 1.
Define the term economic well-being indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in ecosystem-service units of each additional thousand cubic metres of timber when production moves from A to B.
Using Table 2, calculate the amount by which total injections fall short of total leakages.
Using a PPC diagram, explain the opportunity cost of moving from A to B (Table 1).
Using a PPC diagram, explain how idle sawmills are represented and how their reuse could increase actual output (Text B, paragraph 2).
Using a PPC diagram, explain how continued deforestation could affect Galena's future production possibilities (Text A, paragraph 2).
Using a circular flow of income diagram, explain the likely effect of the net leakage shown in Table 2.
Using information from the texts/data and your knowledge of economics, evaluate Galena's proposed conservation zones and reforestation grants.
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Read the extracts and answer the questions that follow.
Harapan's government must allocate engineers, construction workers, machinery and land between highways and railways. This illustrates choice, because scarcity prevents every project from being completed immediately.
Private firms propose toll highways, while the government favours a public railway serving low-income communities. Highway advocates emphasize speed and profits; railway advocates emphasize access and lower resource use.
Congestion has left some workers unable to reach available jobs, placing current output inside the PPC. Better transport could use existing resources more fully and eventually raise productivity.
Households pay taxes and save through banks. Firms invest in vehicles, government purchases infrastructure and foreign visitors buy transport services. Harapan is a mixed economy in which both markets and government influence allocation.
Annual transport-service combinations in Harapan, with their PPC status.
| Combination | Highway journeys / million journeys | Rail journeys / million journeys | PPC status |
|---|---|---|---|
| A | 90 | 30 | Efficient: on PPC |
| B | 60 | 75 | Efficient: on PPC |
| U | 55 | 40 | Attainable but inefficient: inside PPC |
For the PPC questions, treat A and B as efficient combinations on Harapan's PPC, and U as an attainable but productively inefficient combination inside it.
Annual flows in Harapan's economy.
| Leakages | Flow / million haras | Injections | Flow / million haras |
|---|---|---|---|
| Saving | 72 | Investment | 85 |
| Taxation | 98 | Government spending | 100 |
| Imports | 60 | Exports | 50 |
Define the term choice indicated in bold in Text A, paragraph 1.
Define the term mixed economy indicated in bold in Text B, paragraph 2.
Using Table 1, calculate the opportunity cost in highway journeys of each additional million rail journeys when production moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain how Table 1 illustrates scarcity and choice.
Using a PPC diagram, explain how reducing transport-related unemployment could affect actual economic growth (Text B, paragraph 1).
Using a PPC diagram, explain how improved transport infrastructure could affect Harapan's production possibilities (Text B, paragraph 1).
Using a circular flow of income diagram, explain how taxation and government infrastructure spending connect households, government and firms (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, discuss whether Harapan should prioritize toll highways or a publicly funded railway.
Read the extracts and answer the questions that follow.
Isola can generate electricity from imported fossil fuels or domestic sunlight. Sunlight may be a free good when unused, but solar electricity is not free because panels, land and workers are scarce.
The government wants to reduce fossil-fuel dependence by financing solar infrastructure. This could improve sustainability, although resources used for solar projects cannot simultaneously produce other goods.
Economists use a production possibilities curve to simplify Isola's allocation problem. The model assumes fixed resources and technology over the period and considers only two outputs. For this question, assume that A and B in Table 1 are efficient points on Isola's current PPC, while U is an attainable but productively inefficient point inside it.
A recession has reduced electricity use and left construction workers unemployed. The government expects solar investment to increase present expenditure and future productive capacity.
Annual production combinations and PPC status in Isola.
| Combination | Renewable electricity / GWh | Consumer goods / thousand units | PPC status |
|---|---|---|---|
| A | 100 | 180 | Efficient point on current PPC |
| B | 160 | 135 | Efficient point on current PPC |
| U | 110 | 100 | Attainable, inefficient point inside current PPC |
Annual circular-flow leakages and injections in Isola.
| Flow | Category | Amount / million solars per year |
|---|---|---|
| Saving | Leakage | 50 |
| Taxation | Leakage | 70 |
| Imports | Leakage | 95 |
| Investment | Injection | 85 |
| Government spending | Injection | 80 |
| Exports | Injection | 55 |
Define the term sustainability indicated in bold in Text A, paragraph 2.
Define a production possibilities curve as indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in consumer-good units of each additional gigawatt-hour of renewable electricity when production moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain why solar electricity is an economic good rather than a free good (Text A and Table 1).
Using a PPC diagram, explain the difference between actual growth and growth in production possibilities in Isola (Text B, paragraph 2).
Using a PPC diagram, explain how technological improvement specific to solar production would affect Isola's production possibilities.
Using a circular flow of income diagram, explain how government-financed solar investment may affect households and firms (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, evaluate Isola's proposed transition from fossil fuels to solar electricity.
Read the extracts and answer the questions that follow.
A cyclone destroyed factories, roads and housing in Junara. The loss of capital reduced the economy's capacity to produce both reconstruction services and ordinary consumer goods.
Some surviving workers and machines remain unemployed because transport links have not been restored. The government must choose between rapid reconstruction, immediate consumption and protection against future storms.
Households supply labour to firms and receive wages. Foreign organizations purchase Junaran exports and provide funds, while residents buy imports. These interactions show economic change and interdependence.
The government proposes public reconstruction coordinated with private contractors. Critics fear waste and favour decentralized market decisions; supporters argue that essential infrastructure requires collective planning.
Annual production combinations and their positions relative to Junara's post-cyclone PPC.
| Combination | Reconstruction projects / thousand projects | Consumer-good units / thousand units | Post-cyclone PPC position |
|---|---|---|---|
| A | 25 | 140 | Frontier point |
| B | 55 | 80 | Frontier point |
| U | 30 | 60 | Interior point |
Annual circular-flow values in Junara after the cyclone.
| Annual flow | Amount / million juns |
|---|---|
| Saving | 35 |
| Taxation | 40 |
| Imports | 70 |
| Investment | 52 |
| Government spending | 58 |
| Exports | 30 |
Define the factor of production capital indicated in bold in Text A, paragraph 1.
Define the economic concept change indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in consumer-good units of each additional thousand reconstruction projects when production moves from A to B.
Using Table 2, calculate the amount by which total leakages exceed total injections.
Using a PPC diagram, explain the effect of the cyclone's destruction of capital on Junara's production possibilities (Text A).
Using a PPC diagram, explain why Junara may produce at combination U after the cyclone even relative to its reduced productive capacity (Table 1).
Using a PPC diagram, explain how rebuilding storm-resistant infrastructure could affect Junara over time (Text A, paragraph 2).
Using a circular flow of income diagram, explain how high import spending affects Junara's domestic circular flow (Text B and Table 2).
Using information from the texts/data and your knowledge of economics, discuss whether Junara's reconstruction should be directed mainly by government or by private markets.
Read the extracts and answer the questions that follow.
Kitala has too few trained teachers and agricultural specialists to satisfy every community's demands. Its government must decide how many education and agricultural services to provide and for whom they should be produced.
Teachers and farm workers supply physical and mental effort and are therefore examples of labour. Education can improve labour quality, but classrooms and teachers used now cannot simultaneously produce agricultural output.
Private schools respond to household purchasing power, while state schools provide places without direct charges. The government says public provision promotes equity; opponents argue that competition would improve efficiency.
Banks lend household savings to farms for machinery. The government taxes income and purchases school materials, while agricultural exports bring foreign expenditure into Kitala.
Annual education and agricultural production combinations in Kitala.
| Combination | Student places / thousand | Crops / thousand tonnes |
|---|---|---|
| A | 40 | 150 |
| B | 80 | 110 |
| U | 50 | 85 |
For parts (c) to (e), assume that A and B are efficient combinations on Kitala's current PPC, represented by a standard downward-sloping, bowed-out curve. Draw schematic PPC diagrams; exact intercepts are not required.
Annual circular-flow data for Kitala.
| Leakages / million kits | Amount / million kits | Injections / million kits | Amount / million kits |
|---|---|---|---|
| Saving | 60 | Investment | 62 |
| Taxation | 75 | Government spending | 83 |
| Imports | 45 | Exports | 40 |
Define the factor of production labour indicated in bold in Text A, paragraph 2.
Define the term equity indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in crops of each additional thousand student places when production moves from A to B.
Using Table 2, calculate the difference between total injections and total leakages.
Using a PPC diagram, explain the opportunity cost of increasing education from combination A to combination B (Table 1).
Using a PPC diagram, explain how education could affect Kitala's future production possibilities (Text A, paragraph 2).
Using a PPC diagram, explain what combination U indicates about Kitala's resources (Table 1).
Using a circular flow of income diagram, explain how banks and the government influence resource allocation in Kitala (Text B, paragraph 2).
Using information from the texts/data and your knowledge of economics, evaluate whether Kitala should expand public education despite its opportunity cost in agricultural output.
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Arandia relies heavily on a finite reserve of fossil fuels. The government is deciding how many resources should be allocated to producing current consumer goods and how many should be allocated to constructing renewable-energy installations. Renewable installations are capital goods that may increase future productive capacity and reduce dependence on finite resources.
Table 1 shows Arandia’s maximum annual production combinations with existing resources and technology.
Maximum annual production combinations in Arandia
| Renewable-energy installations / number | Consumer-goods output index / index units |
|---|---|
| 0 | 1000 |
| 10 | 900 |
| 20 | 760 |
| 30 | 580 |
| 40 | 340 |
Arandia currently constructs 20 renewable-energy installations and produces 650 units on its consumer-goods index. Engineers expect that constructing renewable installations and improving workers’ skills could expand future production possibilities, particularly for energy-intensive consumer goods.
Define the factor of production capital.
Calculate the opportunity cost per additional renewable-energy installation when production increases from 10 to 20 installations.
Calculate the opportunity cost per additional renewable-energy installation when production increases from 20 to 30 installations and identify the pattern of opportunity cost.
Using the data in Table 1, draw Arandia’s production possibilities curve and plot its current production combination.
Determine Arandia’s consumer-goods output gap at its current level of renewable-energy production and explain what this gap indicates.
Explain how greater production of renewable-energy installations may affect present and future economic well-being in Arandia.
Using the text/data provided and your knowledge of economics, recommend a government resource-allocation policy for increasing renewable-energy capacity while protecting economic well-being in Arandia.
Meridia has 600 000 skilled labour hours and 120 specialized machines available for a programme of community health-centre construction. The government is comparing two production techniques.
Resource requirements per community health centre and total resources available in Meridia.
| Technique / resource availability | Skilled labour / hours | Specialized machines / number |
|---|---|---|
| Labour-intensive technique | 12 000 hours per centre | 1 machine per centre |
| Capital-intensive technique | 6 000 hours per centre | 3 machines per centre |
| Total available for programme | 600 000 hours | 120 machines |
For the production possibilities curve in Table 2, assume that health centres are constructed using the capital-intensive technique. The same land, labour and capital could instead be used to construct commercial premises. Table 2 shows maximum combinations that can be produced over the programme period.
Maximum production combinations over the programme period.
| Health centres / number | Commercial premises / number |
|---|---|
| 0 | 60 |
| 10 | 54 |
| 20 | 46 |
| 30 | 35 |
| 40 | 20 |
Meridia currently constructs 20 health centres and 38 commercial premises. Most resources in Meridia are privately owned, but the government collects taxes, regulates construction and provides some healthcare directly.
Define the factor of production entrepreneurship.
Calculate the maximum number of health centres Meridia could construct using only the labour-intensive technique.
Calculate the maximum number of health centres Meridia could construct using only the capital-intensive technique.
Explain how Meridia’s choice of production technique answers the basic economic question of how to produce.
Using the data in Table 2, draw Meridia’s production possibilities curve and plot its current production combination.
Explain why Meridia is described as a mixed economy and how this may affect the questions of what to produce and for whom to produce.
Using the text/data provided and your knowledge of economics, recommend how Meridia’s government should intervene, if at all, in the allocation and production of community health centres.
Pelagos is a small island economy that depends on foreign tourism. A fall in overseas visitor numbers has reduced hotel revenue and employment. Tourist arrivals fell by 40%, while unemployment increased from 5% to 11%. Some households have increased saving because they are uncertain about future income.
Table 1 shows annual leakages and injections before and after the decline in tourism.
Annual circular-flow leakages and injections in Pelagos.
| Flow | 2024 / billion island dollars | 2025 / billion island dollars |
|---|---|---|
| Saving (leakage) | 12 | 16 |
| Taxation (leakage) | 18 | 20 |
| Imports (leakage) | 30 | 34 |
| Investment (injection) | 15 | 13 |
| Government spending (injection) | 20 | 22 |
| Exports (injection) | 28 | 19 |
The government is considering increased spending on local infrastructure, support for domestic firms and policies to diversify production. It must also protect the island’s beaches and freshwater supplies, which are important for future economic well-being.
Define the term injection.
Calculate total leakages, total injections and the net injection or leakage in Pelagos in 2024.
Calculate total leakages, total injections and the net injection or leakage in Pelagos in 2025.
Determine the change in the net circular-flow balance between 2024 and 2025.
Explain how the changes shown in Table 1 may affect current output and employment in Pelagos.
Draw a circular flow of income diagram showing the interdependence of households, firms, government, the financial sector and the foreign sector in Pelagos.
Using the text/data provided and your knowledge of economics, recommend a government policy to improve economic well-being in Pelagos following the decline in tourism.
Using production possibilities curve diagrams, explain how improvements in technology and in the quality of labour may affect an economy's production possibilities.
Using real-world examples, evaluate whether investment in education is the best way for a government to expand production possibilities.
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Using an appropriate diagram, explain how free market, planned and mixed economies differ in answering the basic economic questions.
Using real-world examples, discuss whether greater reliance on government planning is the most effective way to achieve sustainable economic well-being.
Read the extracts and answer the questions that follow.
Lumera's manufacturers use imported minerals to produce disposable goods. A social movement argues that endless growth based on finite resources cannot continue and proposes repair, reuse and recycling.
A recycling system requires workers, machinery and land. These are scarce factors with alternative uses, so even environmentally beneficial production involves opportunity cost.
The government proposes product-repair standards, public recycling centres and taxes on disposable goods. Firms argue that decentralized markets encourage innovation and that extensive regulation may reduce efficiency.
Recycling investment may reduce mineral imports and create domestic jobs. However, households may pay higher prices and taxes. The proposal illustrates how choices by government, firms, households, banks and foreign producers are interdependent.
Annual production combinations; recycling technology raises productivity in the repair-service sector.
| Combination | Disposable products / thousand units | Repair and recycling services / thousand units |
|---|---|---|
| A | 200 | 30 |
| B | 140 | 90 |
| U | 120 | 50 |
Annual circular-flow values in Lumera.
| Flow | Value / million lums |
|---|---|
| Saving | 82 |
| Taxation | 88 |
| Imports | 110 |
| Investment | 95 |
| Government spending | 100 |
| Exports | 80 |
Define the term opportunity cost indicated in bold in Text A, paragraph 2.
Define productive efficiency indicated in bold in Text B, paragraph 1.
Using Table 1, calculate the opportunity cost in disposable products of each additional thousand repair-service units when production moves from A to B.
Using Table 2, calculate the amount by which total leakages exceed total injections.
Using a PPC diagram, explain the trade-off involved in moving from combination A to combination B (Table 1).
Using a PPC diagram, explain how investment in recycling technology could affect Lumera's production possibilities (Text B, paragraph 2).
Using a PPC diagram, explain how continued depletion of imported minerals could eventually affect Lumera's production possibilities (Text A, paragraph 1).
Using a circular flow of income diagram, explain how reduced mineral imports and increased domestic recycling investment could affect Lumera's circular flow (Text B and Table 2).
Using information from the texts/data and your knowledge of economics, discuss whether Lumera should redesign its economy to place less emphasis on growth in disposable output and more emphasis on repair and recycling.