Practice 2.7 Role of government in microeconomics with authentic IB Economics exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like microeconomics, macroeconomics, and international trade. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
Guatemala is a Central American country with an estimated population of 17.9 million (2022). According to World Bank data, real GDP was approximately US$85 billion in 2022. Agriculture, particularly coffee, sugar, and bananas, makes up a significant portion of Guatemala’s exports (around 28% of total exports). While the tourism sector has been expanding, recent global events caused slowdowns. The country experiences persistent inequality, with a Gini coefficient estimated at about 0.48 in 2021. Poverty remains a major concern, especially in rural areas.
Guatemala’s tax system includes both direct and indirect taxes, although collection remains challenging. Personal income tax rates are progressive, with a top rate of 31%, while the corporate income tax rate is 25%. A value-added tax (VAT) of 12% applies to most goods. Government spending has focused on infrastructure and social programs to reduce poverty and increase potential long-term growth.
Table 1: Macroeconomic Indicators of Guatemala (2019–2022)
| Year | Real GDP (US$ bn) | Nominal GDP (US$ bn) | Exports of Goods & Services (US$ bn) | Government Spending (US$ bn) |
|---|---|---|---|---|
| 2019 | 76.0 | 78.2 | 11.5 | 11.8 |
| 2020 | 73.5 | 75.0 | 10.2 | 12.1 |
| 2021 | 78.4 | 81.0 | 12.4 | 12.3 |
| 2022 | 85.0 | 88.0 | 13.5 | 13.2 |
Table 2: Income Distribution in Guatemala (2021)
| Quintile | Income share |
|---|---|
| 1 (lowest 20%) | 4.1% |
| 2 | 9.0% |
| 3 | 15.0% |
| 4 | 24.0% |
| 5 (highest 20%) | 47.9% |
Table 3: Market for Guatemalan Coffee in the US (price per 50 kg bag)
| Price per 50 kg bag | Quantity Demanded (tons) | Quantity Supplied (tons) |
|---|---|---|
| $110 | 900 | 550 |
| $120 | 850 | 600 |
| $130 | 800 | 650 |
| $140 | 750 | 700 |
| $150 | 700 | 740 |
Table 4: Tax Rates in Guatemala
| Type of tax | Rate of tax |
|---|---|
| Corporate income tax | 25% |
| Personal income tax | Progressive up to 31% |
| Value Added Tax (VAT) | 12% on most goods; some items taxed at 0% |
Figure 1 (not drawn here) shows that, when government spending in Guatemala increases by US$1 billion, real GDP rises by an estimated US$2.5 billion. This suggests a government spending multiplier of 2.5.
Using the information in Table 1, calculate the real GDP growth rate from 2021 to 2022.
Using Figure 1, the government spending rises by US$1 billion, yet real GDP rises by US$2.5 billion. Calculate the government spending multiplier and explain the main step used in your calculation.
Using the information in Table 3, calculate the price elasticity of demand (PED) for Guatemalan coffee when the price rises from US$120 to US$130 per 50 kg bag.
Using the information in Table 3, calculate the price elasticity of supply (PES) for Guatemalan coffee when the price increases from US$140 to US$150 per 50 kg bag.
Define the term “progressive tax.”
Using an AD/AS diagram, explain how an increase in government spending might increase real GDP and reduce unemployment in Guatemala.
Using the data in Table 3, calculate the approximate equilibrium price for Guatemalan coffee. Show your working.
Using information from Table 2, explain two ways in which high income inequality might hamper economic development in Guatemala.
Using the text/data provided and knowledge of economics, recommend a policy that the government of Guatemala could implement to reduce income inequality. Justify the recommendation.
Bangladesh is a rapidly developing country in South Asia, recognized for its thriving ready-made garment (RMG) industry, which accounts for over 80% of export earnings. Government reforms since the early 2000s, aimed at boosting export competitiveness, have led to steady gains in real GDP. For instance, between 2019 and 2022, Bangladesh’s real GDP growth averaged 5.2% annually. However, persistent challenges such as high rural poverty rates (officially at 20.1%, with extreme poverty at 10.5%) and vulnerability to climate risks continue to threaten inclusive growth.
Remittances form a major pillar of the economy, totaling over US$24 billion in 2021. Inflows from the Bangladeshi diaspora support household consumption and reduce external vulnerabilities, contributing to the country’s foreign currency reserves. Even so, the government has been concerned about maintaining exchange rate stability, especially in light of global inflationary pressures and supply chain disruptions, which have driven up the cost of essential imports like fuel and machinery. To cope with rising expenditures on food and energy, the government raised tariffs on luxury goods while restricting administrative barriers for essential commodity imports.
On the microeconomic front, the government recently introduced a consumption tax on sweetened beverages to curb rapidly rising obesity rates. Local bottlers initially protested the policy, arguing it would reduce their profits and force layoffs in urban factories. Yet public health advocates insist that the potential long-term social benefits reduced health-care costs and a healthier workforce outweigh the short-term economic costs. Meanwhile, targeted subsidies on fertilizers aim to support agricultural productivity; farmers in the northern regions have long claimed that lack of affordable inputs restricts their ability to increase crop yields and incomes.
Bangladesh’s push for infrastructure improvements particularly in roads, ports, and energy has attracted modest but growing foreign direct investment (FDI), totaling around US$2.8 billion in 2022. Corporate tax incentives are given to firms that establish manufacturing plants in special economic zones, spurring output in electronics and pharmaceuticals. Yet the domestic labor force often lacks specialized skills, leading to high underemployment. The government’s Skills for Employment Initiative, launched in 2020, aims to address these gaps by providing technical training and apprenticeships to youths aged 18–30.
Concurrently, there are ongoing debates on reducing import tariffs further to encourage greater participation in regional trade blocs. Economists highlight that a more liberalized trade environment can improve access to cheaper raw materials for local industries. Critics, however, worry that swiftly removing tariffs might destabilize nascent domestic firms already grappling with competition from established foreign producers.
Bangladesh faces significant environmental and developmental hurdles. Climate change-related floods frequently destroy crops, thereby exacerbating rural poverty. Government officials have begun working with international donors to finance climate-resilient infrastructure elevated roads and flood barriers while also supporting microfinance programs targeted at poor households. These policies seek to break the vicious cycle of poverty, whereby low incomes lead to low investments in education and productivity, perpetuating underdevelopment. Early signs suggest that expanded access to small loans, particularly for female entrepreneurs, is reducing extreme poverty in several flood-prone districts.
Despite these efforts, inequalities persist. In urban areas, the Gini coefficient remains relatively high, reflecting income gaps within the service sector. Doctors and engineers earn significantly above the national average, boosting demand for private education that many poor households cannot afford. The government has tried to bridge this inequality by directing additional funds to public schools, focusing on science and technology curricula.
The prospects for Bangladesh hinge on effective policy coordination. Balancing short-term macroeconomic stability such as keeping inflation below 8% with long-term structural reforms in education, infrastructure, and trade policy remains a central challenge. The government’s ability to manage environmental risks, attract investment, and provide social protection will greatly influence whether Bangladesh can transition from a lower-middle-income to a higher-income country in the coming decades.
Table 1: Selected Macroeconomic Indicators for Bangladesh (2019–2022)
| Indicator | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
| Nominal GDP (US$ billion) | 310 | 330 | 355 | 380 |
| Real GDP Growth Rate (%) | 4.5 | 3.8 | 5.4 | 6.3 |
| Inflation Rate (%) | 5.6 | 5.3 | 6.2 | 7.5 |
| Unemployment Rate (%) | 4.4 | 5.3 | 5.1 | 4.9 |
| Current Account Balance (%GDP) | -1.2 | -1.8 | -2.1 | -2.5 |
| Exchange Rate (BDT per US$) | 84.9 | 85.3 | 86.1 | 93.0 |
Table 2: Development and Social Indicators for Bangladesh
| Indicator | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
| Extreme Poverty Rate (%) | 11.2 | 11.0 | 10.8 | 10.5 |
| Adult Literacy Rate (%) | 74 | 75 | 76 | 77 |
| Microfinance Loans Disbursed (US$ billion) | 2.1 | 2.3 | 2.6 | 3.0 |
| FDI Inflows (US$ billion) | 2.2 | 2.0 | 2.4 | 2.8 |
| Gini Coefficient (urban areas) | 0.36 | 0.37 | 0.37 | 0.38 |
Define the term “consumption tax”. (paragraph 4)
Define the term “foreign direct investment” (FDI) (paragraph 5).
Using information from Table 1, calculate the total increase in Bangladesh’s nominal GDP between 2019 and 2022.
Sketch an AD/AS diagram to show how an increase in government infrastructure spending might affect the inflation rate, given the inflation trend in Table 1.
Using a demand-and-supply diagram of the domestic beverage market, explain how imposing a consumption tax on sweetened beverages could affect equilibrium price and quantity in Bangladesh. (paragraph 3).
Using a tariff diagram, explain how further reductions in import tariffs may influence domestic producers of machinery in Bangladesh. (paragraph 8).
Using a Lorenz curve diagram, explain the significance of the rising Gini coefficient in urban areas (Table 2) for income inequality in Bangladesh. (paragraph 7).
Using a poverty cycle diagram, explain how microfinance programs (Table 2) might help break the cycle of poverty in rural districts prone to climate shocks. (paragraph 6).
Using information from the text/data and knowledge of economics, evaluate the extent to which Bangladesh’s policy mix (infrastructure investments, tariff adjustments, and social protection measures) effectively promotes both economic growth and development.
Chile, located along the western coast of South America, is widely regarded as one of the region’s most stable and prosperous nations. With a population of around 19 million, the country boasts a successful track record in macroeconomic management, marked by consistent economic growth and relatively low government debt levels. However, ongoing shifts in global trade, fluctuating copper prices, and recent policy reforms have brought new challenges to Chile’s economy.
In 2022, Chile recorded an average monthly wage of approximately US$600, though the cost of living in major urban centers such as Santiago continues to rise. To maintain price stability, the Central Bank of Chile has long operated an inflation-targeting regime, typically aiming for annual inflation close to 3%. Yet external pressures—like disruptions to global supply chains—pushed the inflation rate up to 7.2% in 2022. Unemployment remains a pressing issue; following a peak of 10.7% in 2020 when economic activity contracted, joblessness has gradually declined as the economy recovers.
Chile’s economic identity is strongly tied to mining, particularly copper, which accounts for a significant proportion of export revenues. In 2022, approximately 45% of total exports came from copper and other minerals. While copper has been a major driver of economic growth, economists and policymakers increasingly emphasize diversification to protect against commodity price volatility. The government has also expanded support for agricultural and service industries, promoting increased global competitiveness through various trade agreements with North American and Asian partners.
On the fiscal side, Chile historically prided itself on low government debt, yet debt levels have slowly risen to 37% of GDP by 2022. This reflects higher spending on social programs, including public healthcare and education subsidies. Policymakers are attempting to strike a balance between prudent fiscal management and ensuring equitable access to basic services. In the microeconomic arena, Chile introduced an excise tax on sugar-sweetened beverages to discourage unhealthy consumption and reduce negative externalities tied to rising obesity rates.
Foreign direct investment (FDI) flows remain relatively stable in non-mining ventures, particularly in renewable energy sectors such as solar and wind. The government has enacted regulatory changes that encourage private-sector participation in green investments, hoping to lessen reliance on fossil fuels. Analysts predict that over the next decade, renewable energy might comprise up to 30% of Chile’s energy mix, helping the country manage environmental externalities while sustaining long-term economic growth.
Despite Chile’s liberalized trade regime, some domestic industries face competitiveness hurdles from global market fluctuations. The peso’s exchange rate is influenced by copper prices. Therefore, this has spurred officials to pursue greater diversification.
Income distribution remains a topic of debate. Chile has recorded improvements in its Gini coefficient over the past decade, yet inequalities persist—especially in rural areas where access to education and healthcare lags behind that in urban regions. Government initiatives to raise the minimum wage and invest in vocational training signal attempts to address income disparities, which some critics argue need more comprehensive policies.
Private enterprise plays a central role in Chile’s leading export industries. In the mining sector, large multinational firms partner with domestic companies, creating jobs and contributing to government revenue. Nevertheless, critics point to environmental costs from mining activities and the need for stricter regulations to ensure sustainable resource use. Many also question whether enough investments are being channeled into non-traditional sectors like technology and advanced manufacturing—areas widely seen as key to sustainable future growth.
Moving forward, Chile’s policy landscape continues to evolve. Discussions about strengthening social safety nets, investing further in green energy, and maintaining a competitive exchange rate occupy center stage. The government’s approach to promoting inclusive development includes balancing social spending with structural reforms that attract both domestic and foreign investors. Ultimately, Chile’s ability to diversify its economy beyond copper and ensure equity across various regions will determine its long-term path to stable and inclusive growth.
Table 1: Chile’s Macroeconomic Indicators (2019–2022)
| Indicator | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
| Real GDP Growth (%) | 1.1 | –5.8 | 11.7 | 2.3 |
| Inflation Rate (%) | 2.2 | 3.0 | 4.5 | 7.2 |
| Unemployment Rate (%) | 7.0 | 10.7 | 8.9 | 7.5 |
| Exchange Rate (CLP per US$) | 698 | 793 | 725 | 785 |
| Government Debt (% of GDP) | 28 | 33 | 35 | 37 |
Table 2: Chile’s Export Composition (2022)
| Export Commodity | Percentage of Total Exports (%) |
|---|---|
| Copper and Minerals | 45 |
| Agricultural Goods | 15 |
| Industrial Goods | 25 |
| Services | 10 |
| Others | 5 |
Define the term “inflation-targeting” as mentioned in the text (Paragraph 1).
Define the term “taxes” as described in the text (Paragraph 4).
Using information from Table 1, calculate the percentage point change in Chile’s unemployment rate from 2019 to 2020.
Sketch an AD/AS diagram to show how a decrease in real GDP growth might initially affect the level of unemployment.
Using a demand and supply diagram, explain how the excise tax on sugar-sweetened beverages might reduce the consumption of these goods in Chile (Paragraph 4).
Using an exchange rate diagram, explain how a decline in copper exports could affect the value of the Chilean peso (Paragraph 6).
Using a Lorenz curve diagram, explain how Chile’s rising average monthly wage could affect its income distribution over time (Paragraph 2).
Using a business cycle diagram, explain how Chile’s rebound in real GDP growth in 2021 might influence cyclical unemployment (Table 1).
Using information from the text/data and knowledge of economics, evaluate the impact of Chile’s private mining sector on the country’s long-term economic growth and development prospects.
Explain how price floors can lead to inefficiencies in the market.
Explain why the supply curve is upward-slopping.
Using real-world examples, evaluate direct provision of services as a government response to market failure caused by public goods.
Jordan, located in the Levant region of the Middle East, has historically served as a major trade hub due to its strategic location. Over the past decade, Jordan’s government has pursued policies to diversify the economy beyond traditional service sectors such as tourism and finance. While Jordan boasts political stability relative to some neighbors, it faces persistent macroeconomic and microeconomic challenges, including high unemployment, persistent budget deficits, and rising poverty levels in rural areas. In 2022, Jordan’s real GDP grew by approximately 2.2%, marking a modest rebound after slower growth in previous years.
One major concern is the country’s dependence on imports for energy, food staples, and manufactured goods. The government maintains a partial subsidy on wheat and cooking gas to keep basic food prices affordable and reduce social pressures. However, critics argue that these subsidies weigh on government spending and distort market signals. Efforts to gradually remove universal subsidies and move toward targeted assistance have been tested amid inflationary pressures that reached 4.5% in the same year. Jordan’s budget deficit stood at around 6.8% of GDP in 2022, prompting the government to seek further support from international financial institutions to implement fiscal reforms.
Unemployment remains a pressing issue, averaging about 22% in urban centers and exceeding 35% among the youth. Small and medium-sized enterprises (SMEs) complain of limited access to credit, constraining their ability to invest in capital goods and expand operations. Foreign direct investment (FDI) inflows have stagnated in recent years, partially due to geopolitical risks and global economic uncertainties. The Central Bank of Jordan has maintained a fixed exchange rate regime, pegging the Jordanian dinar to the US dollar to stabilize investor confidence and control inflation. This policy requires careful reserves management, as fluctuations in remittances and tourism receipts can influence the country’s current account balance.
Jordan also contends with developmental challenges and pockets of poverty. Official estimates put the national poverty rate at about 15%, though some independent studies suggest regional disparities are more pronounced. In rural governorates, inadequate infrastructure, limited job opportunities, and underinvestment in education perpetuate what policymakers describe as a “poverty trap.” Government initiatives to address poverty include conditional cash transfers, microfinance programs, and public works projects aimed at boosting income for low-skilled households. Non-governmental organizations also play a significant role in bridging gaps in healthcare and education services, particularly for vulnerable groups.
On the trade front, Jordan has signed agreements with the European Union (EU) and other regional partners to reduce tariffs on a wide range of goods. Exports of agricultural produce, chemicals, and textiles have grown, but the trade balance remains negative. Jordan’s reliance on imported oil and capital equipment contributes to a large current account deficit. Meanwhile, some exporters point to administrative barriers and compliance costs when selling into foreign markets. The government, with donor support, has invested in infrastructure and logistics hubs to improve the competitiveness of Jordanian goods abroad.
Recently, Jordan has increased its focus on sustainable development. Investments in renewable energy, particularly solar power, have gained momentum, improving energy security. Government agencies have also introduced pilot projects to reduce water wastage and improve agricultural productivity in arid regions. Nevertheless, recurring droughts and the influx of refugees from neighboring conflict zones create additional pressures on public services, threatening progress in poverty reduction.
In the short to medium term, Jordan’s economic outlook depends on containing inflation, reducing the budget deficit, and attracting FDI to diversify its economic base. Overcoming structural inefficiencies, supporting SMEs, and chipping away at long-standing poverty levels will require continued policy reforms and collaboration with international partners. The interplay of government interventions, global market conditions, and social development programs will ultimately shape Jordan’s capacity for sustained and equitable growth.
Table 1: Selected Macroeconomic Indicators for Jordan (2019–2022)
| Indicator | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
| Nominal GDP (US$ billion) | 44.0 | 42.5 | 43.8 | 45.6 |
| Real GDP Growth Rate (%) | 1.9 | -1.6 | 2.0 | 2.2 |
| Inflation Rate (%) | 2.3 | 0.3 | 1.4 | 4.5 |
| Budget Deficit (% of GDP) | -7.0 | -8.6 | -7.8 | -6.8 |
| Current Account Balance (% of GDP) | -7.2 | -8.3 | -7.5 | -5.9 |
| Unemployment Rate (%) | 19.1 | 23.0 | 22.2 | 22.0 |
Table 2: Development and Social Indicators for Jordan
| Indicator | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
| Poverty Rate (%) | 14 | 15 | 15 | 15 |
| Human Development Index (HDI) | 0.735 | 0.736 | 0.740 | 0.742 |
| Gini Coefficient | 0.36 | 0.36 | 0.35 | 0.35 |
| FDI Inflows (US$ billion) | 1.0 | 0.7 | 0.8 | 0.8 |
| Microfinance Loans to SMEs (US$ mil) | 300 | 340 | 390 | 420 |
| Rural–Urban Income Gap (US$) | 2,100 | 2,000 | 1,950 | 2,000 |
Define the term “subsidy” as used in the text (paragraph 2).
Define the term “foreign direct investment (FDI)” as mentioned in the text (paragraph 3).
Using information from Table 1, calculate the total nominal GDP increase (in US$ billion) from 2019 to 2022 for Jordan.
Sketch an aggregate demand and aggregate supply (AD/AS) diagram to explain how rising inflation (Table 1) could result from increased government spending on subsidies.
Using a demand-and-supply-of-currency diagram, explain how the fixed exchange rate regime might be affected if Jordan experiences a sharp fall in remittances.
Using a production possibilities curve (PPC) diagram, explain how increased microfinance loans to SMEs (Table 2) might affect Jordan’s potential output.
Using an externalities diagram (marginal social cost and marginal social benefit), explain how government investment in solar energy could reduce negative externalities in electricity generation.
Using a “poverty cycle” diagram, explain how limited access to education and infrastructure, particularly in rural areas, may perpetuate poverty in Jordan.
Using information from the text/tables and your knowledge of economics, evaluate the effectiveness of Jordan’s reliance on external support (such as international financial institutions and trade agreements) in achieving sustained economic growth and poverty reduction.
Explain the concept of social surplus.
Using real-world examples, evaluate reductions in the minimum wage as a measure to maximise resource allocation in the labour market.
Explain the differences between movements along the supply curve and shifts of the supply curve.
Using real-world examples, evaluate the view that subsidy is the most effective policy to encourage the consumption of merit goods.
Indonesia’s Path to Economic Reform
Indonesia is undergoing a period of economic transformation, with ambitious reforms aimed at fostering long-term growth. The government has prioritized infrastructure expansion, streamlining regulations, and reducing corruption to attract investment. Additionally, tax incentives are being introduced to boost emerging industries such as transportation, telecommunications, metal production, and agricultural processing.
To fund infrastructure projects, which are projected to cost USD 22 billion, the government has reduced fuel subsidies, despite their role in making energy affordable for low-income households. While this move is expected to free up government funds, it has contributed to inflation, which has surged to 7.26%, exceeding the central bank’s target of 3–5%.
Indonesia’s economy also faces external challenges. Falling global prices of coal, gold, and palm oil, its major exports, have put downward pressure on export revenue. Meanwhile, economic growth has slowed, leading to declining consumer confidence. The Gini coefficient, which measures income inequality, has risen in recent years, reflecting concerns about income distribution.
To strengthen its economic foundation, the government is focusing on education and vocational training, aiming to reduce unemployment by upskilling its youthful workforce. Moreover, efforts to support small businesses include expanding access to micro-credit and making loans more accessible to entrepreneurs.
In response to economic pressures, Indonesia has also introduced trade protection measures, including tariffs and import restrictions, to shield domestic industries and encourage local production. However, critics argue that such policies may reduce efficiency and competitiveness in the long run.
Figure 1: Indonesian Development Statistics
| Year | Relative Poverty (% of population) | Absolute Poverty (millions) | Gini Coefficient | Human Development Index (HDI) |
|---|---|---|---|---|
| 2007 | 16.6 | 37 | 0.35 | -* |
| 2008 | 15.4 | 35 | 0.35 | 0.654 |
| 2009 | 14.2 | 33 | 0.37 | -* |
| 2010 | 13.3 | 31 | 0.38 | 0.671 |
| 2011 | 12.5 | 30 | 0.40 | 0.678 |
| 2012 | 11.7 | 29 | 0.41 | 0.681 |
| 2013 | 11.5 | 29 | 0.41 | 0.684 |
| 2014 | 11.0 | 28 | -* | -* |
Figure 2: Indonesia’s Economic Growth and Trade Statistics
| Year | GDP Growth (%) | Export Revenue (USD billion) | Trade Balance (USD billion) |
|---|---|---|---|
| 2010 | 6.2 | 210 | 18.5 |
| 2011 | 6.5 | 230 | 15.2 |
| 2012 | 6.0 | 215 | 9.8 |
| 2013 | 5.8 | 200 | 3.4 |
| 2014 | 5.1 | 185 | -1.2 |
Define the term "inflation".
List two factors that may contribute to income inequality in an economy.
Using information from Figure 1, calculate the percentage decrease in absolute poverty between 2007 and 2014.
Draw a Lorenz curve diagram to illustrate the concept of income inequality in Indonesia.
Using a tariff diagram, explain how trade protection measures can support domestic industries.
Using an AD-AS diagram, explain how reducing fuel subsidies may affect Indonesia’s inflation rate.
Using a PPC diagram, explain how investment in education and vocational training can contribute to Indonesia’s long-term economic growth.
Using information from the text and your knowledge of economics, evaluate the Indonesia's current measures' effectiveness in achieving economic growth and development.
Using real world examples, evaluate the effectiveness of state regulations in achieving a reduction in the consumption of demerit goods.
Explain why governments may impose price floors in a market.