Sample Questions and Answers for
Economics IB
ECS1601
Question 1: Explain the concept of price elasticity of demand and its significance.
Answer:
Price elasticity of demand (PED) measures the responsiveness of the quantity demanded of a good to a
change in its price. It is calculated as the percentage change in quantity demanded divided by the
percentage change in price.
Elastic Demand: When PED > 1, demand is elastic; consumers are highly responsive to price
changes.
Inelastic Demand: When PED < 1, demand is inelastic; consumers are less responsive to price
changes.
Unitary Elastic Demand: When PED = 1, the change in price does not affect total revenue.
Significance: Understanding PED helps businesses set prices strategically. For instance, if demand is
elastic, a price decrease could increase total revenue, while a price increase might lead to a significant
drop in sales.
Question 2: Discuss the impact of government intervention in the market, focusing on price controls.
Answer:
Government intervention can take various forms, including price ceilings and price floors.
Price Ceiling: A maximum price set by the government, often leading to shortages. For example,
rent controls can make housing affordable but can also discourage investment in new housing,
leading to a shortage of available units.
Price Floor: A minimum price, such as a minimum wage, intended to ensure fair compensation.
While it may help workers, it can also lead to unemployment if employers cannot afford to pay
the mandated wages.
, Impact: While these interventions aim to correct market failures and protect consumers or producers,
they can lead to unintended consequences like shortages, surpluses, and black markets.
Question 3: What is the difference between nominal and real GDP? Why is this distinction important?
Answer:
Nominal GDP measures the total value of all goods and services produced in a country at current prices,
without adjusting for inflation. In contrast, Real GDP accounts for inflation by adjusting nominal GDP to
reflect changes in price levels, providing a more accurate measure of an economy's output over time.
Importance: This distinction is crucial for assessing economic growth. Real GDP provides a clearer
picture of an economy's size and health, allowing policymakers to make informed decisions. For
instance, an increase in nominal GDP could be misleading if inflation is also high, masking a stagnant real
economy.
Question 4: Define and differentiate between monetary policy and fiscal policy.
Answer:
Monetary Policy: Conducted by a country's central bank, it involves managing the money supply
and interest rates to influence economic activity. For example, lowering interest rates can
stimulate borrowing and investment, while raising rates can help control inflation.
Fiscal Policy: Involves government spending and taxation decisions made by the legislative body.
Increasing government spending can boost economic activity, while higher taxes may reduce
disposable income and consumption.
Differentiation: While monetary policy focuses on the supply of money and credit, fiscal policy pertains
to government budgets and spending. Both are crucial for managing economic cycles and influencing
macroeconomic stability.
Question 5: What is globalization, and what are its main economic effects?
Answer:
Globalization refers to the increasing interconnectedness of economies and cultures through trade,
investment, technology, and the movement of labor.
Economic Effects:
1. Increased Trade: Nations can specialize in the production of goods and services, leading to
greater efficiency and variety for consumers.
2. Foreign Investment: Globalization encourages capital flows across borders, leading to job
creation and technology transfer in developing countries.
Economics IB
ECS1601
Question 1: Explain the concept of price elasticity of demand and its significance.
Answer:
Price elasticity of demand (PED) measures the responsiveness of the quantity demanded of a good to a
change in its price. It is calculated as the percentage change in quantity demanded divided by the
percentage change in price.
Elastic Demand: When PED > 1, demand is elastic; consumers are highly responsive to price
changes.
Inelastic Demand: When PED < 1, demand is inelastic; consumers are less responsive to price
changes.
Unitary Elastic Demand: When PED = 1, the change in price does not affect total revenue.
Significance: Understanding PED helps businesses set prices strategically. For instance, if demand is
elastic, a price decrease could increase total revenue, while a price increase might lead to a significant
drop in sales.
Question 2: Discuss the impact of government intervention in the market, focusing on price controls.
Answer:
Government intervention can take various forms, including price ceilings and price floors.
Price Ceiling: A maximum price set by the government, often leading to shortages. For example,
rent controls can make housing affordable but can also discourage investment in new housing,
leading to a shortage of available units.
Price Floor: A minimum price, such as a minimum wage, intended to ensure fair compensation.
While it may help workers, it can also lead to unemployment if employers cannot afford to pay
the mandated wages.
, Impact: While these interventions aim to correct market failures and protect consumers or producers,
they can lead to unintended consequences like shortages, surpluses, and black markets.
Question 3: What is the difference between nominal and real GDP? Why is this distinction important?
Answer:
Nominal GDP measures the total value of all goods and services produced in a country at current prices,
without adjusting for inflation. In contrast, Real GDP accounts for inflation by adjusting nominal GDP to
reflect changes in price levels, providing a more accurate measure of an economy's output over time.
Importance: This distinction is crucial for assessing economic growth. Real GDP provides a clearer
picture of an economy's size and health, allowing policymakers to make informed decisions. For
instance, an increase in nominal GDP could be misleading if inflation is also high, masking a stagnant real
economy.
Question 4: Define and differentiate between monetary policy and fiscal policy.
Answer:
Monetary Policy: Conducted by a country's central bank, it involves managing the money supply
and interest rates to influence economic activity. For example, lowering interest rates can
stimulate borrowing and investment, while raising rates can help control inflation.
Fiscal Policy: Involves government spending and taxation decisions made by the legislative body.
Increasing government spending can boost economic activity, while higher taxes may reduce
disposable income and consumption.
Differentiation: While monetary policy focuses on the supply of money and credit, fiscal policy pertains
to government budgets and spending. Both are crucial for managing economic cycles and influencing
macroeconomic stability.
Question 5: What is globalization, and what are its main economic effects?
Answer:
Globalization refers to the increasing interconnectedness of economies and cultures through trade,
investment, technology, and the movement of labor.
Economic Effects:
1. Increased Trade: Nations can specialize in the production of goods and services, leading to
greater efficiency and variety for consumers.
2. Foreign Investment: Globalization encourages capital flows across borders, leading to job
creation and technology transfer in developing countries.
