Clastify logo
Clastify logo
Subjects
Features
Review
HOT
Tutoring

4.7 Sustainable development

Practice exam-style IB Economics questions for Sustainable development, aligned with the syllabus and grouped by topic.

Verified by Rishabh
Verified by Rishabh
Paper
Difficulty
Status
Level
Question 1
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain the three dimensions of sustainable development.

[10]
B

Using real-world examples, discuss the view that governments can achieve sustainable development only by giving equal priority to its economic, social and environmental dimensions.

[15]
Question 2
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain why intergenerational equity is central to sustainable development.

[10]
B

Using real-world examples, evaluate the view that improving present living standards must reduce the well-being of future generations.

[15]
Question 3
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how the Sustainable Development Goals provide an interconnected framework for improving economic well-being.

[10]
B

Using real-world examples, evaluate the effectiveness of the Sustainable Development Goals in promoting sustainable development.

[15]
Question 4
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

A circular economy in Lydora

Read the extracts and answer the questions that follow.

Text A — Urban waste

  1. Lydora’s cities dispose of most household waste in landfills. Residents living nearby experience unpleasant odours and polluted groundwater. The government proposes a circular economy strategy based on reducing waste, repairing products, reusing materials and recycling.

  2. Households will receive separate collection bins, while manufacturers will pay a charge related to the packaging they produce. Recycling firms will receive temporary subsidies for new equipment.

Text B — Social and economic effects

  1. The strategy could create formal employment and reduce imports of raw materials. However, higher packaging costs may increase consumer prices. Informal waste collectors fear losing their livelihoods unless they receive training and access to formal jobs.

  2. The government argues that equity requires the costs and benefits of environmental policy to be distributed fairly. It is considering free bins for low-income households.

Table 1 — Municipal waste

Municipal waste and recycling target in Lydora, 2025.

MeasureMunicipal waste / million tonnes
Total municipal waste2.40
Recycled initially0.36
Recycling target0.84

Table 2 — Recycling investment

Recycling machinery investment and government subsidy

ItemValue
Cost of recycling machinery48 million lydors
Government subsidy30% of machinery cost
A
I.

Define the term circular economy indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term equity indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the initial recycling rate and the target recycling rate.

[3]
II.

Using Table 2, calculate the subsidy and the amount recycling firms must finance.

[2]
C

Using a negative production externality diagram, explain why landfill disposal may result in market failure (Text A).

[4]
D

Using a demand and supply diagram, explain how a subsidy for recycling machinery may affect recycling services (Text A and Table 2).

[4]
E

Using an AD/AS diagram, explain how the circular-economy strategy could increase Lydora’s potential output (Text B).

[4]
F

Using a labour market diagram, explain how formal recycling jobs could affect employment in Lydora (Text B, paragraph 1).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss whether Lydora’s circular-economy strategy will achieve sustainable development.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 5
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how progress towards one Sustainable Development Goal may support progress towards other Sustainable Development Goals.

[10]
B

Using real-world examples, discuss the view that trade-offs between the Sustainable Development Goals make sustainable development unattainable.

[15]
Question 6
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how scarcity and opportunity cost affect government choices intended to promote sustainable development.

[10]
B

Using real-world examples, evaluate the view that a lack of government finance is the most significant constraint on sustainable development.

[15]
Question 7
SL • Paper 1
Hard
Non Calculator
SL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how investment in low-emission public transport may contribute to sustainable development.

[10]
B

Using real-world examples, evaluate the effectiveness of government infrastructure spending in achieving sustainable development.

[15]
Question 8
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how poverty may lead to environmental degradation and thereby reinforce poverty.

[10]
B

Using real-world examples, evaluate the view that reducing poverty is the most effective way to achieve environmental sustainability.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 9
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a negative production externality diagram, explain why environmentally damaging agricultural production may result in market failure.

[10]
B

Using real-world examples, evaluate government policies that could reduce the environmental damage caused by agricultural production without increasing poverty.

[15]
Question 10
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain why common-pool resources may be over-exploited by households experiencing poverty.

[10]
B

Using real-world examples, discuss whether stronger private property rights are the best way to manage common-pool resources sustainably while protecting low-income users.

[15]
Question 11
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how limited access to credit and technology may prevent low-income farmers from using environmentally sustainable production methods.

[10]
B

Using real-world examples, evaluate the effectiveness of providing subsidized credit and technology in breaking the link between poverty and environmental degradation.

[15]
Question 12
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

Wetland tourism in Costa Verde

Read the extracts and answer the questions that follow.

Text A — Tourism and development

  1. Costa Verde is a middle-income economy whose coastal wetlands support fishing, flood protection and wildlife. The government wants to promote sustainable development by expanding nature-based tourism while conserving these ecosystems.

  2. A new boardwalk and visitor centre have increased tourist demand. Hotels and restaurants have created employment, but untreated wastewater and disturbance from boat tours impose costs on fishing communities. The government is considering a pollution tax and limits on visitor numbers.

Text B — Financing conservation

  1. The visitor centre was partly financed by foreign borrowing. Supporters argue that tourism revenue can fund education, sanitation and wetland restoration, contributing to several Sustainable Development Goals (SDGs).

  2. Critics argue that the project has an opportunity cost and that many tourism jobs are seasonal. They also fear that current residents will receive the income while future generations inherit damaged wetlands.

Table 1 — Visitors to the wetland reserve

Visitors to the wetland reserve

YearVisitorsAverage spending per visitor / Costa Verde pesos
2023120000—
202415000080

Table 2 — Government environmental budget

Costa Verde government environmental budget, 2024.

Budget itemAmount / million pesos
Wetland restoration12.5
Other environmental spending37.5
Total environmental budget50.0
A
I.

Define the term sustainable development indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term Sustainable Development Goals (SDGs) indicated in bold (Text B, paragraph 1).

[2]
B
I.

Using Table 1, calculate the percentage increase in visitors between 2023 and 2024. Show your working.

[3]
II.

Using Table 2, calculate wetland restoration spending as a percentage of the environmental budget.

[2]
C

Using a demand and supply diagram, explain how the visitor centre may have increased tourism revenue (Text A, paragraph 2 and Table 1).

[4]
D

Using a negative production externality diagram, explain why untreated wastewater from tourism may cause market failure (Text A, paragraph 2).

[4]
E

Using a PPC diagram, explain the opportunity cost of allocating more government resources to wetland restoration (Text B, paragraph 2 and Table 2).

[4]
F

Using an AD/AS diagram, explain how successful wetland tourism could increase Costa Verde’s real output in the short run (Text A).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss whether expanding nature-based tourism is likely to promote sustainable development in Costa Verde.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 13
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

Solar mini-grids in Aridia

Read the extracts and answer the questions that follow.

Text A — Energy access

  1. Many rural communities in Aridia have no reliable electricity. The government subsidizes solar mini-grids to improve refrigeration, evening study and access to digital markets. It describes electricity access as an important part of economic well-being.

  2. Solar installation creates skilled employment and reduces the use of diesel generators. However, imported batteries are expensive and their disposal may contaminate soil and water.

Text B — A connected policy

  1. The programme may support SDGs concerning clean energy, education, health and decent work. These complementarities illustrate interdependence, since progress in one area can affect several other economic, social and environmental outcomes.

  2. The subsidy has a fiscal opportunity cost. Some urban taxpayers question why rural users receive support, while rural households argue that high connection charges would exclude low-income families.

Table 1 — Electricity access

Rural household electricity access in Aridia before and after the solar mini-grid programme.

MeasureBefore programme (households)After programme (households)
Rural households360 000360 000
Households with reliable electricity144 000234 000

Table 2 — Mini-grid finance

Mini-grid installation finance per household connection.

ItemCost or subsidy / Arins per connection
Installation cost600
Government subsidy210
A
I.

Define the term economic well-being indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term interdependence indicated in bold (Text B, paragraph 1).

[2]
B
I.

Using Table 1, calculate the percentage-point increase in the proportion of rural households with reliable electricity.

[3]
II.

Using Table 2, calculate the connection charge paid by a household after the subsidy and the subsidy as a percentage of installation cost.

[2]
C

Using a positive consumption externality diagram, explain why rural electricity connections may be underconsumed without a subsidy (Text A).

[4]
D

Using a demand and supply diagram, explain how the connection subsidy affects the market for solar installations (Text B and Table 2).

[4]
E

Using a negative production externality diagram, explain how battery disposal may threaten sustainability (Text A, paragraph 2).

[4]
F

Using an AD/AS diagram, explain how improved electricity reliability may increase Aridia’s potential output (Text A).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate the solar mini-grid subsidy as a policy for achieving sustainable development in Aridia.

[15]
Question 14
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

Coastal restoration in Pelagos

Read the extracts and answer the questions that follow.

Text A — Restoring natural protection

  1. Pelagos has experienced more frequent coastal flooding. The government plans to restore dunes and seagrass beds that protect homes, provide fish habitats and absorb carbon. These benefits contribute to environmental protection and social progress.

  2. Restoration will temporarily restrict access to part of the beach. Tourism businesses expect lower revenue during construction, while fishers expect larger catches once habitats recover.

Text B — Present and future choices

  1. The project is financed by a coastal levy and international grants. Supporters argue that intergenerational equity requires current users to help preserve ecosystem services for future residents.

  2. Opponents prefer a concrete sea wall, which would be completed faster. Scientists warn that it could transfer erosion to neighbouring beaches and provide fewer benefits for biodiversity.

Table 1 — Expected flood losses

Expected annual flood losses in Pelagos under two coastal-protection scenarios.

ScenarioExpected annual flood losses / million pelars
Without restoration96
After restoration60

Table 2 — Project finance

Project finance for coastal restoration in Pelagos.

ItemAmount / million pelars
Total restoration expenditure120
International grant45
Coastal levy revenue
A
I.

Define the term social progress indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term intergenerational equity indicated in bold (Text B, paragraph 1).

[2]
B
I.

Using Table 1, calculate the annual reduction in expected flood losses in pelars and as a percentage of losses without restoration.

[3]
II.

Using Table 2, calculate the revenue required from the coastal levy and the grant’s percentage share of expenditure.

[2]
C

Using a positive production externality diagram, explain why coastal restoration may be underprovided by private firms (Text A).

[4]
D

Using a demand and supply diagram, explain the likely short-run effect of restricted beach access on tourism services (Text A, paragraph 2).

[4]
E

Using a PPC diagram, explain the choice between coastal restoration and other government services (Text B).

[4]
F

Assuming firms’ short-run capacity is unchanged, use a demand and supply diagram to explain the likely short-run effect of restricted beach access on tourism services (Text A, paragraph 2).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate whether ecosystem restoration is preferable to a sea wall as a sustainable-development strategy for Pelagos.

[15]
Question 15
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

Energy-efficient housing in Norvia

Read the extracts and answer the questions that follow.

Text A — A building standard

  1. Norvia will require new homes to meet strict energy-efficiency standards. Better insulation lowers household energy consumption and urban emissions. The regulation is intended to promote sustainability, a condition in which economic, social and environmental systems can support well-being over time.

  2. Construction firms expect higher initial costs. The government will subsidize training for builders and offer targeted grants to low-income homebuyers.

Text B — Affordability and employment

  1. Energy-efficient homes have lower running costs and may improve health by reducing dampness. However, higher construction prices could reduce housing affordability and employment during the transition.

  2. The government faces scarcity because funds used for housing grants cannot also finance every proposed school and hospital project. Officials argue that future energy savings justify the present cost.

Table 1 — Household energy use

Annual household energy use by type of new home.

Type of new homeAnnual energy use / kWh
Standard new home16000
Energy-efficient new home11200

Table 2 — Training programme

Training programme for builders in Norvia.

Eligible buildersTarget participation rate / %\%Total training expenditure / norins
800075%75\%9 000 000
A
I.

Define the term sustainability indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term scarcity indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the annual reduction in energy use per home and the percentage reduction.

[3]
II.

Using Table 2, calculate the target number of trained builders and training expenditure per participant.

[2]
C

Using a demand and supply diagram, explain how the building standard may affect the market for new homes in the short run (Text A).

[4]
D

Using a negative consumption externality diagram, explain how household energy use may cause market failure (Text A).

[4]
E

Using a labour market diagram, explain how subsidized training may affect employment of builders (Text A and Table 2).

[4]
F

Using a PPC diagram, explain the opportunity cost of providing targeted housing grants (Text B, paragraph 2).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss whether compulsory energy-efficiency standards are an effective way to promote sustainable development in Norvia.

[15]
Question 16
SL • Paper 2
Hard
Calculator Permitted
SL • Paper 2
Hard
Calculator Permitted

Water security in Sanjara

Read the extracts and answer the questions that follow.

Text A — Irrigation and conservation

  1. Rainfall in Sanjara has become less predictable. The government proposes reservoirs and drip-irrigation networks to stabilize food production, conserve water and increase rural incomes. This illustrates the three connected dimensions of economic development, social progress and environmental protection.

  2. Reservoir construction will create jobs and electricity but flood some habitats and require 900 households to relocate. Farmers receiving irrigation will pay a usage charge.

Text B — Choosing a strategy

  1. Environmental groups prefer smaller rainwater-harvesting systems. They argue that large reservoirs encourage water-intensive crops and may not be suitable in every region.

  2. Officials state that the programme supports several SDGs, but accept that its opportunity cost includes other health and education projects. Compensation and community participation may reduce social costs.

Table 1 — Irrigation efficiency

Water used to produce one tonne of agricultural output in Sanjara.

Irrigation methodWater use / litres per tonne
Conventional irrigation5000
Drip irrigation3250

Table 2 — Reservoir finance

Reservoir finance in Sanjara

ItemValue or financing basis
Total reservoir expenditure240 million sanjars
Domestic finance144 million sanjars
Sources of financeDomestic finance and development grant only
A
I.

Define the term economic development indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term opportunity cost indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the water saved per tonne by drip irrigation and the percentage reduction in water use.

[3]
II.

Using Table 2, calculate the value of the development grant and its percentage share of expenditure.

[2]
C

Using a demand and supply diagram, explain how improved irrigation may affect the market for food in Sanjara (Text A).

[4]
D

Using Table 2, calculate the value of the development grant and its percentage share of expenditure, assuming that total expenditure is financed by domestic finance and the development grant only.

[4]
E

Using an AD/AS diagram, explain how improved irrigation infrastructure could increase Sanjara’s potential output (Text A).

[4]
F

Using a PPC diagram, explain Sanjara’s choice between reservoir construction and health or education projects (Text B).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate whether large reservoirs or smaller rainwater-harvesting systems offer the more sustainable development strategy for Sanjara.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 17
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Grazing land in Karumo

Read the extracts and answer the questions that follow.

Text A — Pressure on shared pasture

  1. Nomadic households in Karumo share grazing land. Falling income and livestock disease have encouraged families to keep larger herds as insurance against future losses. The pasture is being used faster than it can regenerate.

  2. Overgrazing reduces vegetation, increases erosion and lowers future livestock productivity. This threatens sustainability and may intensify rural poverty.

Text B — Managing access

  1. The government proposes community grazing permits, veterinary services and payments to households that restore vegetation. Secure community rights may improve incentives, but powerful herd owners could capture the permits.

  2. Officials emphasize equity, arguing that households with few animals should not bear the same adjustment cost as wealthy commercial producers.

Table 1 — Pasture condition

Pasture condition in Karumo

MeasureValue / livestock units per year
Sustainable grazing capacity320 000
Actual grazing use400 000

Table 2 — Restoration payment

Annual costs of the pasture restoration payment programme in Karumo.

Programme itemAmount / unit
Participating households24 000 households
Annual restoration payment85 karums per household per year
Administrative costs360 000 karums per year
A
I.

Define the term sustainability indicated in bold (Text A, paragraph 2).

[2]
II.

Define the term equity indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the amount by which grazing exceeds sustainable capacity and express this excess as a percentage of sustainable capacity.

[3]
II.

Using Table 2, calculate total annual programme expenditure, including administrative costs.

[2]
C

Using a negative production externality diagram, explain why livestock production may be excessive in Karumo (Text A and Table 1).

[4]
D

Using a poverty-cycle diagram, explain how overgrazing may reinforce poverty in Karumo (Text A).

[4]
E

Using a demand and supply diagram, explain how subsidized veterinary services could affect the market for livestock products (Text B).

[4]
F

Using a PPC diagram, explain how pasture degradation may affect Karumo’s productive possibilities (Text A).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate community grazing permits and restoration payments as policies for sustainable development in Karumo.

[15]
Question 18
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Shrimp farming and mangroves in Talora

Read the extracts and answer the questions that follow.

Text A — Export growth

  1. Shrimp exports have raised incomes in Talora’s coastal region. Low-income households clear mangroves to construct ponds because formal jobs and affordable credit are limited.

  2. Mangrove loss reduces fish nurseries, carbon storage and storm protection. Development based on continued clearance may violate intergenerational equity.

Text B — Conservation with livelihoods

  1. The government proposes a per-unit tax on shrimp produced using newly cleared mangrove land, payments for ecosystem protection and loans for intensive shrimp ponds on already-cleared land. Its aim is to break the poverty-environment cycle rather than criminalize poor households.

  2. The programme depends on international finance, illustrating interdependence because seafood consumption, climate effects and financial resources cross national borders.

Table 1 — Mangrove cover

Mangrove cover in Talora’s coastal region over five years.

YearMangrove cover / hectares
201982 000
202469 700

Table 2 — Ecosystem payments

Ecosystem-protection payment programme in Talora

MeasureValue
Eligible households18 000
Annual payment per household / talors110
International contribution to expenditure / %55%
A
I.

Define the term intergenerational equity indicated in bold (Text A, paragraph 2).

[2]
II.

Define the term interdependence indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the decrease in mangrove cover and the percentage decrease over the five years.

[3]
II.

Using Table 2, calculate total annual payment expenditure and the amount financed domestically.

[2]
C

Using a negative production externality diagram, explain why shrimp farming may cause market failure (Text A).

[4]
D

Using a demand and supply diagram, explain how a mangrove-clearing tax may affect shrimp production (Text B).

[4]
E

Using a poverty-cycle diagram, explain how mangrove degradation may reinforce coastal poverty (Texts A and B).

[4]
F

Using an exchange rate diagram, explain how increased shrimp exports could affect the value of Talora’s currency (Text A).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate Talora’s proposed policy package for conserving mangroves while reducing poverty.

[15]
Question 19
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Forest use and rural poverty in Navora

Most low-income households in Navora depend on farming and collecting fuelwood from a publicly accessible forest. Farmers report that they understand the benefits of conservation but cannot afford irrigation, improved seeds or cleaner energy. The government is considering payments to households that protect forested land.

Table 1 presents data on changes in forest area and the proposed forest-protection programme.

Forest-area change and proposed forest-protection programme in Navora

IndicatorValueUnit
Forest area at start of year12 000hectares
Forest area before natural regeneration10 800hectares
Natural regeneration during year300hectares
Proposed annual payment per household150LCU
Participating households800households
Programme budget300 000LCU

Agricultural expansion also causes soil erosion and downstream water pollution. Table 2 gives information used to estimate the welfare loss from environmentally damaging agricultural production.

Marginal external cost over agricultural output; values vary linearly between listed outputs.

Agricultural output / tonnesMSC−MSBMSC - MSB / LCU per tonne (linear between points)
40 0000
45 0003
50 0006
55 0009
60 00012
A
I.

Define the term sustainable development.

[2]
II.

Using Table 1, calculate the net percentage decrease in Navora's forest area during the year.

[3]
III.

Calculate the total annual cost of the proposed payments to households and the amount of the programme budget remaining.

[3]
IV.

Using Table 2, calculate the welfare loss caused by the excess agricultural output.

[3]
V.

Draw a negative production externality diagram for environmentally damaging agricultural output, showing the market quantity, socially efficient quantity and welfare loss.

[4]
VI.

Explain how poverty may cause environmental degradation and thereby make development in Navora less sustainable.

[5]
B

Using the text/data provided and your knowledge of economics, recommend a policy that the government of Navora should use to reduce poverty-related deforestation.

[10]
Question 20
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Sustainable public transport in Belluno

Belluno experiences severe traffic congestion and air pollution. Its government plans to replace diesel buses with electric buses. Electric buses have higher operating costs, but they produce lower life-cycle emissions and reduce health costs associated with urban air pollution.

Table 1 presents annual data for the proposed replacement programme.

Annual data for the proposed replacement of 500 diesel buses in Belluno.

Quantity / unitDiesel busElectric bus
Number of buses / buses500500
Distance travelled per bus per year / km60 00060 000
Life-cycle emissions / kg CO2eCO_2\text{e} km−1^{-1}1.200.30
Annual operating cost per bus / LCU42 00058 000
Annual external benefit from replacement per bus / LCU—20 000

The government is also considering a targeted fare subsidy because an increase in fares could reduce access to employment and education for low-income passengers.

Proposed targeted fare subsidy for low-income passengers in Belluno.

Quantity / unitValue
Current fare / LCU per journey1.50
Proposed unsubsidized fare / LCU per journey1.80
Subsidy for eligible passengers / LCU per journey0.30
Eligible low-income journeys / journeys per year12 000 000
A
I.

Define the term Sustainable Development Goals.

[2]
II.

Calculate the annual reduction in life-cycle emissions if all 500 buses are replaced.

[3]
III.

Calculate the annual net social benefit of replacing all 500 buses, considering only the additional operating costs and estimated external benefits in Table 1.

[3]
IV.

Calculate the annual cost of the proposed targeted fare subsidy and the fare paid by an eligible low-income passenger.

[3]
V.

Draw a positive consumption externality diagram for journeys on low-emission public transport, showing the market quantity, socially efficient quantity and welfare loss.

[4]
VI.

Explain how the electric-bus programme could contribute to sustainable development and several Sustainable Development Goals.

[5]
B

Using the text/data provided and your knowledge of economics, recommend a policy for making urban transport in Belluno more sustainable.

[10]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 21
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Coastal fishing and poverty in Maliba

Fishing is the main source of income and protein for many low-income households in Maliba. Entry to the coastal fishery is difficult to control, and each fisher has an incentive to catch fish before others do. Scientists warn that the current catch exceeds the annual natural increase in the fish stock.

Table 1 presents data for the fishery.

Fish stock and catch data for Maliba's coastal fishery.

MeasureAmount / tonnes
Fish stock at start of year50 000
Natural growth during year8 000
Annual catch12 000
Maximum catch to maintain stock8 000

The government is considering a landing charge on fish caught commercially. Revenue could finance monitoring, alternative employment and support for small-scale fishing households.

Commercial fishing landings, proposed charge and enforcement costs in Maliba.

ItemValue
Commercial landings12 million kg per year
Proposed landing charge2 LCU per kg
Monitoring and enforcement costs9 million LCU per year
A
I.

Define the term common-pool resource.

[2]
II.

Using Table 1, calculate the fish stock at the end of the year and its percentage change.

[3]
III.

Calculate the amount by which the current catch exceeds the maximum catch consistent with maintaining the current fish stock, in tonnes and as a percentage of that maximum catch.

[3]
IV.

Calculate the annual government revenue from the proposed landing charge and the revenue remaining after monitoring and enforcement costs.

[3]
V.

Draw a negative production externality diagram for commercial fishing, showing overproduction and welfare loss.

[4]
VI.

Explain why poverty may make it difficult to achieve sustainable use of Maliba's fishery.

[5]
B

Using the text/data provided and your knowledge of economics, recommend a policy to achieve sustainable use of Maliba's coastal fishery.

[10]
Question 22
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Clean water and sanitation in Ruvuma

Many households in Ruvuma lack reliable access to clean water and sanitation. Waterborne illnesses reduce school attendance and labour productivity. The government plans to expand household connections, but it is also considering a higher water tariff to finance operating costs.

Table 1 presents information about the connection programme.

Household connection programme information for Ruvuma.

MeasureValue
Total households100 000 households
Currently connected60%
Connection target90%
Cost per new connection240 LCU
Household payment per connection80 LCU
Government contribution per connection160 LCU

Table 2 presents expected annual health benefits and tariff information.

Expected annual health benefits and household tariff information in Ruvuma.

MeasureValue
Waterborne illness cases prevented annually18 000 cases
Estimated economic cost per illness case120 LCU per case
Annual operation and maintenance cost1 500 000 LCU
Current water tariff0.50 LCU m−30.50\ \text{LCU m}^{-3}
Proposed water tariff0.80 LCU m−30.80\ \text{LCU m}^{-3}
Low-income household water use6 m36\ \text{m}^3 per month
Low-income household monthly income120 LCU
A
I.

Distinguish between sustainable development and sustainability.

[2]
II.

Calculate the number of new household connections required and the total government contribution to these connections.

[4]
III.

Calculate the estimated annual net benefit after deducting operation and maintenance costs from the economic benefit of prevented illness.

[3]
IV.

Calculate the increase in a low-income household's monthly water expenditure and express it as a percentage of monthly income.

[3]
V.

Draw a positive consumption externality diagram for household sanitation services, showing underconsumption and welfare loss.

[4]
VI.

Explain how improved access to clean water and sanitation may create complementarities between Sustainable Development Goals.

[4]
B

Using the text/data provided and your knowledge of economics, recommend a policy for financing sustainable access to clean water and sanitation in Ruvuma.

[10]
Question 23
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain why environmental damage linked to poverty may create costs beyond the country in which it originates.

[10]
B

Using real-world examples, evaluate the view that international financial and technological assistance is essential for poorer countries to achieve sustainable development.

[15]
Question 24
HL • Paper 1
Hard
Non Calculator
HL • Paper 1
Hard
Non Calculator

A

Using a diagram, explain how a conservation policy may improve environmental sustainability but worsen poverty.

[10]
B

Using real-world examples, discuss the view that conservation policies will succeed only if low-income communities are compensated for their costs.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 25
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Charcoal production and poverty in Endala

Read the extracts and answer the questions that follow.

Text A — Household energy and forests

  1. Many low-income households in Endala earn income by producing charcoal from an open-access woodland. The woodland is a common-pool resource because excluding users is difficult and one person’s use leaves less timber for others.

  2. Households know that deforestation lowers rainfall retention and soil quality, but they lack affordable electricity, credit and alternative employment. Immediate food needs therefore encourage continued tree cutting.

Text B — A policy package

  1. The government proposes clean-cooking subsidies, microcredit for rural enterprises and community forestry rights. These policies aim to weaken the relationship between poverty and environmental degradation.

  2. Commercial charcoal traders oppose tighter quotas. Conservation groups support them but warn that restrictions without alternative incomes could deepen poverty and encourage illegal production.

Table 1 — Woodland area

Woodland area in Endala during the year

PeriodWoodland area / hectares
Start of year480000
End of year444000

Table 2 — Clean-cooking programme

Clean-cooking programme data for eligible households in Endala.

Eligible households / householdsClean-stove price / endalsSubsidy paid to household / endals per stove
5000012045
A
I.

Define the term common-pool resource indicated in bold (Text A, paragraph 1).

[2]
II.

Define the term poverty indicated in bold (Text B, paragraph 1).

[2]
B
I.

Using Table 1, calculate the decrease in woodland area and the percentage decrease.

[3]
II.

Using Table 2, calculate the total subsidy cost if every eligible household participates and the price paid per stove by a household.

[2]
C

Using a negative production externality diagram, explain why charcoal production may result in market failure (Text A).

[4]
D

Using a demand and supply diagram, explain how a subsidy for clean stoves may reduce charcoal consumption (Text B and Table 2).

[4]
E

Using a poverty-cycle diagram, explain how deforestation may reinforce rural poverty in Endala (Text A).

[4]
F

Using an AD/AS diagram, explain how microcredit for alternative rural enterprises could increase Endala’s potential output (Text B).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss the policies Endala should use to reduce poverty-related deforestation.

[15]
Question 26
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Artisanal cobalt mining in Belesia

Read the extracts and answer the questions that follow.

Text A — Mining and livelihoods

  1. Rising demand for rechargeable batteries has expanded artisanal cobalt mining in Belesia. Mining provides income in a poor region, but tunnel collapses, child labour and polluted streams reduce economic well-being.

  2. Miners often lack credit and safer equipment. Because immediate income is needed for food, they continue mining despite declining land and water quality. Pollution is a negative externality of production.

Text B — Responsible minerals

  1. The government proposes safety training, school-income grants, pollution charges and certification of responsibly produced cobalt. Foreign battery firms may pay a higher price for certified output.

  2. Supporters link the proposal to the Sustainable Development Goals (SDGs) for poverty, education, decent work and responsible production. Critics fear that costly certification will exclude the poorest miners.

Table 1 — Certified cobalt

Cobalt prices and annual certified sales for a cooperative.

Cobalt measureValue
Uncertified price / bels per kg28
Certified price / bels per kg35
Annual certified sales / kg per year60 000

Table 2 — School-income grant

School-income grant data for Belesia.

Quantity / unitValue
Eligible families / families12 500
Annual grant per family / bels family^-1 yr^-1160
Annual administration expenditure / bels yr^-1250 000
A
I.

Define the term negative externality of production indicated in bold (Text A, paragraph 2).

[2]
II.

Define the term Sustainable Development Goals (SDGs) indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the annual additional revenue earned by the cooperative from certification.

[3]
II.

Using Table 2, calculate total annual expenditure on the school-income grant, including administration.

[2]
C

Assuming the cooperative would otherwise sell the same annual quantity of 60 000 kg60\,000\ \text{kg} as uncertified cobalt, use Table 1 to calculate its annual additional gross revenue from certification, before certification costs.

[4]
D

Assuming all eligible families receive the grant, use Table 2 to calculate the total annual expenditure on the school-income grant, including administration.

[4]
E

Using a poverty-cycle diagram, explain why poverty may contribute to continued environmental damage in Belesia (Text A).

[4]
F

Using an AD/AS diagram, explain how safety training and education could increase Belesia’s potential output (Text B).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss whether certification is the best policy for making cobalt production in Belesia more sustainable while reducing poverty.

[15]
Question 27
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Hillside farming in Oranta

Read the extracts and answer the questions that follow.

Text A — Soil erosion

  1. Poor tenant farmers in Oranta cultivate steep hillsides because fertile valley land is concentrated among a few owners. Short leases provide little incentive to construct terraces or plant trees.

  2. Erosion lowers future yields and deposits sediment in a hydroelectric reservoir. These effects reduce economic well-being and impose costs on electricity users.

Text B — Land and finance reform

  1. The government proposes longer, legally protected leases, subsidized conservation loans and agricultural training. It argues that secure rights could encourage investment while loans improve access to technology.

  2. Critics argue that indebted farmers remain vulnerable to crop failure. They call for grants and land redistribution to improve equity, although these policies face political opposition.

Table 1 — Crop yields

Hillside crop yields before and after terracing.

Cultivation methodCrop yield / tonnes per hectare
Current hillside cultivation2.5
Hillside cultivation after terracing3.4

Table 2 — Conservation loans

Conservation loan scheme in Oranta.

Number of proposed loans / loansAverage loan value / oransGovernment guarantee / %
1500080025%
A
I.

Define the term economic well-being indicated in bold (Text A, paragraph 2).

[2]
II.

Define the term equity indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the increase in yield and the percentage increase expected from terracing.

[3]
II.

Using Table 2, calculate the total value of the loans and the government’s maximum guaranteed liability.

[2]
C

Using a negative production externality diagram, explain why hillside cultivation may result in market failure (Text A).

[4]
D

Using a poverty-cycle diagram, explain how soil erosion may reinforce poverty among Oranta’s tenant farmers (Text A).

[4]
E

Using a demand and supply diagram, explain how successful terracing may affect the crop market (Text B and Table 1).

[4]
F

Using an AD/AS diagram, explain how agricultural training could affect Oranta’s potential output (Text B).

[4]
G

Using information from the texts/data and your knowledge of economics, discuss whether secure land rights or subsidized conservation finance is more important for sustainable development in Oranta.

[15]
Question 28
HL • Paper 2
Hard
Calculator Permitted
HL • Paper 2
Hard
Calculator Permitted

Electronic waste and informal workers in Varelia

Read the extracts and answer the questions that follow.

Text A — Informal recycling

  1. Thousands of low-income workers in Varelia recover valuable metals from discarded electronic goods. Burning cables provides immediate income but releases toxic smoke and contaminates soil.

  2. Workers lack protective equipment, credit and access to safer machinery. Poor health lowers productivity and reinforces poverty. The unregulated allocation therefore creates market failure.

Text B — An inclusive recycling system

  1. The government proposes producer responsibility charges, licensed recycling centres, free safety training and guaranteed purchasing of materials collected by registered informal workers.

  2. Officials describe this as sustainable development because it seeks to improve employment, health and environmental protection without transferring toxic damage to future generations. Some firms warn that the charge will raise electronics prices.

Table 1 — Electronic waste

Annual electronic waste generated and safely recycled in Varelia.

MeasureElectronic waste / tonnes per year
Generated annually300000
Safely recycled currently54000
Safely recycled under target135000

Table 2 — Worker transition programme

Worker transition programme in Varelia

Eligible workers / workersTraining cost / varels per workerProtective equipment / varels per worker
30 00014060
A
I.

Define the term market failure indicated in bold (Text A, paragraph 2).

[2]
II.

Define the term sustainable development indicated in bold (Text B, paragraph 2).

[2]
B
I.

Using Table 1, calculate the current safe-recycling rate and the target safe-recycling rate.

[3]
II.

Using Table 2, calculate the total cost of training and protective equipment for all eligible workers.

[2]
C

Using a negative production externality diagram, explain why informal electronic-waste recycling may cause market failure (Text A).

[4]
D

Using a demand and supply diagram, explain how producer responsibility charges may affect the market for electronic goods (Text B).

[4]
E

Using a poverty-cycle diagram, explain how unsafe informal recycling may reinforce poverty (Text A).

[4]
F

Using a labour market diagram, explain how licensed recycling centres and training could affect formal employment (Text B and Table 2).

[4]
G

Using information from the texts/data and your knowledge of economics, evaluate Varelia’s proposed inclusive recycling system as a strategy for reducing poverty and improving sustainability.

[15]

Build a Practice Exam — Economics HL

Test your knowledge with a custom paper containing questions from selected topics.

Practice exam question preview
Practice exams dashboard preview
Question 29
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Renewable electricity and mineral extraction in Torland

Torland intends to replace part of its coal-generated electricity with solar electricity. The transition is expected to reduce greenhouse-gas emissions but will increase demand for minerals extracted in a low-income region of the country. Mining provides employment and government revenue, but it also pollutes water used by nearby communities.

Table 1 presents electricity-generation data.

Electricity-generation data for Torland's planned replacement of coal generation with solar generation.

MeasureCoalSolarUnit
Annual generation replaced400400GWh per year
Life-cycle emissions0.900.05tonnes CO2eCO_2\text{e} per MWh
Generation cost6085LCU per MWh
External benefit of avoided emissions5050LCU per tonne CO2eCO_2\text{e}
Conversion factor1 GWh=1000 MWh1\ \text{GWh}=1000\ \text{MWh}1 GWh=1000 MWh1\ \text{GWh}=1000\ \text{MWh}

Table 2 presents information about the environmental costs of mineral extraction.

Mineral extraction and water-remediation information for the solar programme in Torland.

MeasureValue
Ore required for solar programme200 000 tonnes
Estimated marginal external cost12 LCU per tonne of ore (assumed constant over the 200 000 tonnes required)
Water-remediation fund contribution1 500 000 LCU
A
I.

Define the term intergenerational equity.

[2]
II.

Calculate the annual reduction in life-cycle emissions resulting from the replacement of coal generation with solar generation.

[3]
III.

Calculate the annual net social benefit of the replacement, considering only the additional generation cost and the external benefit from avoided emissions.

[3]
IV.

Using Table 2, calculate the total external cost of mineral extraction and the amount by which this exceeds the remediation fund.

[4]
V.

Draw a negative production externality diagram for mineral extraction, showing the market quantity, socially efficient quantity and welfare loss.

[4]
VI.

Explain two trade-offs between Sustainable Development Goals that may arise from Torland's energy transition.

[4]
B

Using the text/data provided and your knowledge of economics, recommend a policy that would enable Torland to expand renewable electricity while limiting the environmental and social costs of mineral extraction.

[10]
Question 30
HL • Paper 3
Hard
Calculator Permitted
HL • Paper 3
Hard
Calculator Permitted

Sustainable agriculture in Kambara

Small-scale farmers in Kambara cultivate land affected by erosion and declining soil fertility. Many farmers lack secure land rights and cannot obtain affordable credit for soil-conservation equipment. The government is considering credit guarantees and payments for ecosystem protection.

Table 1 presents information about the proposed credit programme.

Proposed credit-guarantee programme in Kambara.

Programme featureValue
Number of farmers receiving loans1 000 farmers
Loan per farmer600 LCU
Expected default rate10% of borrowers
Government guarantee80% of principal lost through default
Assumption for defaulting borrowersFull principal is lost; interest ignored

Table 2 compares crop yields and gives data for the proposed ecosystem-protection payments.

Crop-yield trends and proposed ecosystem-protection payment data in Kambara.

MeasureValueUnit / basis
Conventional farming yield (current)2.50tonnes per hectare
Conventional yield changeDecrease of 4%each year
Sustainable farming yield2.40tonnes per hectare
Sustainable yield changeNo changeeach year
Ecosystem-protection payment35LCU per hectare per year
Land covered by payments2 000hectares
Downstream water-treatment savings90 000LCU per year
A
I.

Define the term equity.

[2]
II.

Calculate the expected cost to the government of the credit guarantee.

[4]
III.

Calculate the conventional farming yield after three years and the difference between this yield and the sustainable farming yield.

[3]
IV.

Calculate the annual cost of the proposed ecosystem-protection payments and the net annual benefit after accounting for downstream water-treatment savings.

[3]
V.

Draw a poverty-environment cycle showing how low income can contribute to soil degradation and how soil degradation can reinforce poverty.

[4]
VI.

Explain how secure and equitable land rights could improve both poverty reduction and environmental sustainability in Kambara.

[4]
B

Using the text/data provided and your knowledge of economics, recommend a policy that the government of Kambara should use to promote sustainable agriculture while reducing rural poverty.

[10]

4.6 Balance of payments

4.8 Measuring development