A Level H1 Economics Macroeconomics Quiz

Answer Key - A-Level Economics H1 Quiz: Macroeconomics

1. Real vs Nominal GDP (3m)

• Definition: Real GDP is the value of all final goods and services produced within a country, adjusted for inflation/deflation. (1m)
• Explanation: Nominal GDP uses current prices, which can rise due to price increases even if output is stagnant. Real GDP uses constant prices, reflecting actual changes in physical output/volume. (2m)

2. Technical Recession (2m)

• Definition: Two consecutive quarters of negative economic growth (GDP contraction). (2m)

3. Unemployment Types (4m)

• Frictional: Temporary unemployment while searching for a job or transitioning between jobs. (1m)
• Structural: Mismatch between skills of workers and requirements of available jobs. (1m)
• Example: Workers in traditional retail losing jobs to e-commerce platforms in Singapore. (2m)

4. Demand-Pull Inflation (4m)

• Mechanism: Increase in AD (C+I+G+(X-M)) $\rightarrow$ AD curve shifts right. (2m)
• Result: At full employment/near capacity, the increase in demand puts upward pressure on prices $\rightarrow$ General price level rises. (2m)

5. Cost-Push Inflation (4m)

• Mechanism: Oil is a key input for transport and production. $\rightarrow$ Increase in oil prices $\rightarrow$ Increase in production costs for firms. (2m)
• Result: Firms raise prices to maintain profit margins $\rightarrow$ AS curve shifts left $\rightarrow$ Price level rises. (2m)

6. CPI Basket (3m)

• Reason: Consumer preferences and technology change over time. (1m)
• Effect: If the basket contains obsolete goods or misses new essentials, the CPI will not accurately reflect the actual cost of living changes. (2m)

7. Unemployment-Inflation Relationship (5m)

• Theory: Inverse relationship (Phillips Curve). (1m)
• Mechanism: Low unemployment $\rightarrow$ Tight labor market $\rightarrow$ Higher nominal wages $\rightarrow$ Firms pass costs to consumers $\rightarrow$ Higher inflation. (3m)
• Conclusion: Trade-off exists in the short run. (1m)

8. Fiscal Expansion (4m)

• Mechanism: $\uparrow$ G $\rightarrow$ $\uparrow$ AD. (2m)
• Result: Higher AD leads to higher national output/income and increased employment. (2m)

9. Fiscal Constraint (2m)

• Example: Budget deficits, limited reserves, or concerns over increasing national debt/future tax burdens. (2m)

10. Opportunity Cost (4m)

• Definition: The next best alternative foregone. (1m)
• Application: If government spends on healthcare, the opportunity cost is the infrastructure (e.g., new MRT lines) that cannot be built. (2m)
• Trade-off: Limited budget means choosing one priority over another. (1m)

11. Monetary Policy (4m)

• Mechanism: $\uparrow$ Interest rates $\rightarrow$ $\uparrow$ Cost of borrowing $\rightarrow$ $\downarrow$ Consumption (C) and Investment (I). (2m)
• Result: $\downarrow$ AD $\rightarrow$ reduces demand pressure on prices $\rightarrow$ inflation slows down. (2m)

12. Multiplier Effect (4m)

• Description: An initial injection of spending leads to a larger final increase in national income. (2m)
• Mechanism: $\uparrow$ G $\rightarrow$ $\uparrow$ Incomes for workers/firms $\rightarrow$ $\uparrow$ Consumption by these agents $\rightarrow$ Further $\uparrow$ in AD. (2m)

13. Monetary vs Fiscal in Recession (6m)

• Fiscal: Direct impact on AD via G; can be more effective in "liquidity trap" or deep recession where C and I are unresponsive. (3m)
• Monetary: Indirect (via interest rates); may be less effective if businesses are too pessimistic to invest regardless of low rates. (3m)

14. Supply-Side Policies (6m)

• Policy 1: Education/Training $\rightarrow$ $\uparrow$ Labor productivity $\rightarrow$ $\uparrow$ Potential output (LRAS shifts right). (3m)
• Policy 2: Deregulation/Tax cuts for firms $\rightarrow$ $\uparrow$ Incentive to invest $\rightarrow$ $\uparrow$ Capital stock/capacity. (3m)

15. Conflict: Unemployment vs Price Stability (6m)

• Conflict: Policies to lower unemployment (e.g., $\uparrow$ AD) often lead to higher inflation. (2m)
• Conversely, policies to lower inflation (e.g., $\uparrow$ Interest rates) reduce AD, which can lead to higher unemployment. (2m)
• Conclusion: Policy makers must balance these goals (the "divine coincidence" or trade-off). (2m)

16. Comparative Advantage (5m)

• Concept: Ability to produce a good at a lower opportunity cost than another country. (2m)
• Benefit: By specializing in the good where they have the lowest opportunity cost and trading, both countries can consume beyond their PPC. (3m)

17. Protectionism (3m)

• Reason: Protect infant industries (give time to grow), protect domestic jobs from foreign competition, or national security. (3m)

18. SGD Appreciation (5m)

• Effect on Exports: Exports become more expensive for foreigners $\rightarrow$ $\downarrow$ Export volume. (2m)
• Effect on Imports: Imports become cheaper $\rightarrow$ $\uparrow$ Import volume. (2m)
• External Balance: Net exports (X-M) decrease $\rightarrow$ Current account deficit may widen. (1m)

19. Supply-side vs Demand-management in Singapore (8m)

• Demand-management: Fast acting but can cause inflation or be ineffective in a small open economy where AD is heavily dependent on global demand. (3m)
• Supply-side: Addresses structural issues, increases productivity, and ensures long-term competitiveness without causing inflation. (3m)
• Evaluation: In Singapore, supply-side is crucial due to lack of natural resources and reliance on human capital. (2m)

20. Gini and Redistribution (5m)

• Gini: Measure of income inequality (0 = perfect equality). (1m)
• Progressive Tax: Higher earners pay a larger percentage $\rightarrow$ reduces income at the top. (2m)
• Transfers: Cash grants/subsidies to low earners $\rightarrow$ increases income at the bottom. (2m)
• Result: Post-tax/transfer Gini is lower than pre-tax Gini. (1m)