Macroeconomics — Free Economics SL Practice Questions

The central bank of Econland has lowered its policy interest rate from $6\%$ to $4\%$.

The central bank of a small open economy is concerned about rising inflation, currently at $7\%$ per year, well above its target of $2\%$. The central bank decides to increase the policy interest rate from $3\%$ to $5\%$.

The government of Country X is considering using fiscal policy to reduce a recessionary gap. The Minister of Finance proposes either increasing government spending on infrastructure projects or cutting personal income tax rates.

In Costa Azul, the Gini coefficient has risen from $0.35$ to $0.42$ over the past decade. The government introduces two fiscal measures: a rise in the marginal income tax rate on the highest earners from $30\%$ to $45\%$, and increased public spending on healthcare and primary education.

Country X is an emerging economy with high structural unemployment and low labour productivity. The government is considering implementing supply-side policies to boost long-run productive capacity.

Country Gamma has experienced persistently high unemployment and a low rate of economic growth for the past five years. The government is considering implementing supply-side policies to improve the economy's long-run productive capacity.

India's GDP has grown at an average rate of $6\%$ per year over the last decade. Indian workers abroad — particularly in the UAE and the USA — send remittances home, making India one of the largest recipients of remittances globally. In 2023, remittances to India totalled approximately USD 125 billion.

Vietnam recorded a GDP of USD 410 billion and a GNP of USD 400 billion in 2022. During the same year, multinational corporations such as Samsung and LG established large manufacturing plants in Vietnam, representing significant foreign direct investment (FDI) inflows.

The below shows the aggregate demand ($AD$) curve for a hypothetical economy. The initial price level is $P_1$ and real output is $Y_1$. -

A small open economy, such as Singapore, experiences a $10\%$ appreciation its real exchange rate.

Country A has a Gini coefficient of $0.25$. Country B has a Gini coefficient of $0.60$.

An economy is currently at full employment. The government decides to increase spending on infrastructure projects by USD 20 billion. The marginal propensity to consume (MPC) in this economy is $0.8$.

Country X has a Gini coefficient of $0.25$, while Country Y has a Gini coefficient of $0.55$. Both countries have similar average income levels.

A developed economy introduces a policy that significantly increases the proportion of workers earning the minimum wage.

In 2022, the central bank of Country X, a developed economy with low inflation ($2\%$) and moderate growth ($2.5\%$), faced a sharp rise in energy prices that pushed headline inflation to $6\%$. The central bank raised its policy interest rate from $1.5\%$ to $4.5\%$ over six months. Simultaneously, it increased the reserve requirement for commercial banks from $5\%$ to $10\%$ of deposits. Critics argue that using both tools together was an overreaction that could cause a recession, while supporters say it was necessary to anchor inflation expectations.

In 2022, the Bank of Thailand (BOT) faced rising inflationary pressure from post-pandemic recovery in domestic demand higher global energy prices. Core inflation reached $3.2\%$, above the BOT's target range of $1$–$3\%$. Thailand's GDP growth was $2.6\%$ and the unemployment rate was $1.5\%$, near its structural minimum. Commercial banks held excess reserves of $1.2\%$ of deposits, above the required reserve ratio of $1.0\%$.

Country Y is a developing nation. In 2019 its central bank faced a banking crisis in which commercial banks held excess reserves equal to $15\%$ of deposits but refused to lend to businesses, citing high perceived default risk. The policy interest rate had already been reduced to $0.5\%$. The central bank decided to reduce the reserve requirement from $10\%$ to $5\%$ of deposits.

Country Y is experiencing demand-pull inflation of $8\%$ annually. The government is considering two contractionary fiscal policy tools: (A) increasing the rate of Value Added Tax (VAT) from $10\%$ to $15\%$, and (B) cutting government spending on public sector salaries by an amount equal to $2\%$ of GDP. Economic advisors note that consumers in Country Y have a high marginal propensity to import ($\text{MPM} = 0.3$) and that the country operates under a flexible exchange rate system.

The government of Country X, a high-income economy with an ageing population, is considering two fiscal policy options to address a persistent negative output gap (real GDP is $2\%$ below potential). - Option A: A permanent reduction in the marginal rate of personal income tax from $40\%$ to $35\%$, financed by issuing government bonds. - Option B: An increase in government spending on early childhood education and care (ECEC) equal to $1.5\%$ of GDP, financed by a new annual wealth tax of $0.8\%$ on net assets above USD 1 million.

The government of Country X, a developing nation in Southeast Asia, is concerned about its long-run economic growth rate. The country has a young population, high unemployment, and a significant informal economy. The government is considering a set of supply-side policies aimed at improving labour productivity and incentivising formal-sector employment.

Country Y is a high-income OECD member. In 2023, its government announced two supply-side reforms: - The marginal rate of corporate income tax was cut from $30\%$ to $15\%$. - The maximum duration of unemployment benefit was reduced from 24 months to 12 months. The stated aim is to increase long-run potential output and reduce structural unemployment.

Country X is a developing nation with a large informal economy (estimated at $40\%$ of GDP) and an unemployment rate of $12\%$. The government implemented a package of supply-side policies: - (i) Deregulation of the labour market, reducing the minimum wage and lowering hiring and firing costs - (ii) A $20\%$ corporate tax cut for manufacturing firms - (iii) Large-scale government investment in digital infrastructure (broadband mobile networks)

Country X and Country Y are two neighbouring economies. In 2022, Country X reported a GDP of USD 500 billion and a GNP of USD 480 billion. Country Y reported a GDP of USD 300 billion and a GNP of USD 320 billion. Both countries have significant foreign direct investment (FDI) flows and migrant worker remittances. Assume annual depreciation (capital consumption) is USD 30 billion for Country X and USD 15 billion for Country Y.

Country X and Country Y are two neighbouring economies. In 2022, Country X reported a Gross Domestic Product (GDP) of USD 500 billion and a Gross National Product (GNP) of USD 480 billion. Country Y reported a GDP of USD 300 billion and a GNP of USD 320 billion. Both countries have significant foreign direct investment (FDI) flows and migrant worker remittances. Depreciation (capital consumption) is estimated at USD 30 billion for Country X and USD 25 billion for Country Y. *

The economy of Country X experienced a significant downturn in 2023. Business confidence fell sharply, leading to a $15\%$ reduction investment spending on new machinery and factories. At the same time, the government implemented an expansionary fiscal policy, increasing its expenditure on infrastructure projects by USD 10 billion. Despite this, the overall level of aggregate demand (AD) in the economy decreased.

The economy of Japan experienced prolonged deflation during the 1990s and 2000s. Consumer spending ($C$) was weak as households delayed purchases, expecting prices to fall further. The Japanese Yen appreciated significantly against other major currencies. The Japanese government responded by running large budget deficits, substantially increasing government spending ($G$).

Country X is a small, open economy with a floating exchange rate. In 2023, a banking crisis caused consumer confidence to fall sharply, reducing consumer spending ($C$) by $4\%$. Country X's main trading partner, Country Y, experienced a recession, causing export revenue to fall by $6\%$; imports remained relatively stable. In response, the government increased infrastructure spending ($G$) by $8\%$ and the central bank lowered its policy interest rate from $5\%$ to $3\%$ to stimulate business investment ($I$). The marginal propensity to consume (MPC) in Country X is estimated at $0.75$.

Country X is a low-income developing nation in sub-Saharan Africa. In 2020, its real GDP was USD 45 billion and its population was 20 million. By 2023, real GDP had grown to USD 48.6 billion and population had grown to 21 million. The government of Country X has announced a policy to attract foreign direct investment (FDI) into its manufacturing sector, aiming to increase capital stock and create employment. Economists have warned that rapid growth could lead to environmental degradation and increased income inequality.

Country Y is a high-income oil-exporting nation. In 2022, its real GDP growth rate was $4.5\%$, driven by high global oil prices. The government has launched a 'Vision 2030' plan to diversify the economy by investing heavily in tourism, technology, and renewable energy. In 2023, despite a fall in oil prices, real GDP growth was $3.2\%$, partly due to expansion in non-oil sectors. The country's Gini coefficient has remained stable at $0.42$ over the past five years.

The government of Country X, a middle-income developing nation in Southeast Asia, has announced a policy package to boost economic growth. The package includes: (i) a $15\%$ increase in government spending on infrastructure (roads, ports, and digital networks); (ii) a reduction in corporate income tax from $25\%$ to $20\%$; and (iii) deregulation of foreign direct investment (FDI) limits in the manufacturing sector. Over the past five years, Country X has experienced an average real GDP growth rate of $3.2\%$ per year, with an incremental capital-to-output ratio (ICOR) of $4.0$. The labour force is growing at $1.5\%$ per year and total factor productivity (TFP) growth has been estimated at $0.7\%$ per year.

Country X is a rapidly industrialising lower-middle-income economy in Southeast Asia. - The Gini coefficient has risen from $0.32$ to $0.48$ over the past 20 years. - The top $10\%$ of income earners now capture $42\%$ of national income, up from $28\%$ two decades ago. - The government has maintained a flat corporate tax rate of $15\%$ for the past 15 years. - Foreign direct investment (FDI) has flowed heavily into capital-intensive manufacturing (robotics and electronics assembly), creating few low-skill jobs. - Tertiary enrolment remains at $18\%$ of the relevant age cohort. - A recent World Bank report notes that social mobility in Country X has fallen significantly.