Reading 10: Aggregate Output, Prices, and Economic Growth

50 questions available

GDP Measurement and Relationships15 min
Gross Domestic Product (GDP) measures the total market value of final goods and services produced in a country. It can be calculated via the expenditure approach (C + I + G + Net Exports) or the income approach. Nominal GDP reflects current prices, while Real GDP reflects volume using base prices. The GDP deflator adjusts for price level changes. A key identity connects the sectors: the fiscal balance (G - T) equals the private sector surplus (S - I) minus the trade balance (X - M).

Key Points

  • GDP includes only final goods to avoid double counting.
  • Expenditure Approach: GDP = C + I + G + (X - M).
  • Real GDP = Nominal GDP / (GDP Deflator / 100).
  • Fundamental Relationship: (G - T) = (S - I) - (X - M).
Aggregate Demand and Supply20 min
The AD curve shows the inverse relationship between the price level and real output demanded. It shifts due to fiscal/monetary policy, expectations, and global factors. The AS curve varies by time frame: VSRAS is horizontal, SRAS is upward sloping (input prices fixed), and LRAS is vertical (potential GDP). Equilibrium occurs where AD and SRAS intersect. Shifts in these curves cause business cycles.

Key Points

  • AD Downward Slope: Wealth, Interest Rate, and Exchange Rate effects.
  • SRAS shifts with input prices (wages, energy) and productivity.
  • LRAS is vertical at full employment; shifts with technology and resources.
  • Stagflation is caused by a decrease in SRAS (supply shock).
Economic Growth and Sustainability15 min
Long-term growth is driven by labor supply, physical capital, human capital, natural resources, and technology. The production function models output as a function of labor and capital, scaled by Total Factor Productivity (TFP). Because capital suffers from diminishing marginal returns, sustainable per-capita growth in developed economies relies heavily on technological progress (TFP) rather than just capital deepening.

Key Points

  • Potential GDP Growth = Labor Force Growth + Labor Productivity Growth.
  • Production Function: Y = A * f(L, K).
  • Capital deepening increases output but at a diminishing rate.
  • Technological progress (TFP) is essential for sustained growth.

Questions

Question 1

Which of the following items is most likely included in the calculation of Gross Domestic Product (GDP)?

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Question 2

Using the expenditure approach, how is GDP calculated?

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Question 3

If Nominal GDP in 20X6 is 213 billion dollars and the GDP deflator relative to the base year is 122.3, what is the Real GDP for 20X6?

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Question 4

Which measure of income represents the amount households have available to save or spend after taxes?

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Question 5

According to the fundamental relationship among saving, investment, the fiscal balance, and the trade balance, which equation is correct?

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Question 6

The aggregate demand (AD) curve slopes downward due to which of the following reasons?

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Question 7

Which of the following factors would cause a shift in the Long-Run Aggregate Supply (LRAS) curve?

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Question 8

What is the immediate effect of an increase in aggregate demand on the economy in the short run, assuming the economy starts at full employment?

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Question 9

Stagflation is characterized by which combination of economic indicators?

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Question 10

In the Solow growth model, total factor productivity (TFP) represents growth in output that cannot be explained by which factors?

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Question 11

If the GDP deflator is 109.1, this indicates that the price level has:

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Question 12

Which component of GDP is typically used to measure the size of the government sector's direct economic activity?

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Question 13

A decrease in the relative value of a country's currency will generally lead to which shift in the Aggregate Demand (AD) curve?

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Question 14

Which of the following best describes the 'wealth effect' in the context of the Aggregate Demand curve?

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Question 15

In the short run, if an economy is in an inflationary gap (producing above potential GDP), what is the likely market correction mechanism without government intervention?

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Question 16

If the government runs a budget deficit (G > T) and private investment equals private savings (I = S), what must be true about the trade balance?

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Question 17

Which curve is considered perfectly elastic (horizontal) in the aggregate supply/demand model?

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Question 18

If labor's share of national income is 0.7 and capital's share is 0.3, a 1 percent increase in the labor force will lead to what increase in potential GDP, assuming no change in TFP or capital?

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Question 19

Which of the following is a characteristic of a recession?

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Question 20

When the government calculates GDP using the sum-of-value-added method, it sums:

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Question 21

If both Aggregate Demand and Short-Run Aggregate Supply increase, what is the effect on Real GDP?

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Question 22

If Aggregate Demand increases and Short-Run Aggregate Supply decreases, what is the effect on the Price Level?

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Question 23

Capital consumption allowance (CCA) is a measure of:

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Question 24

Which of the following is NOT included in personal income?

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Question 25

Assuming a base year of 20X1 (Price = 100), if the price index in 20X2 is 110, what is the annual inflation rate?

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Question 26

An increase in consumer wealth (e.g., rising stock prices) will most likely shift the Aggregate Demand curve in which direction?

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Question 27

The 'interest rate effect' explains the slope of the AD curve because a higher price level leads to:

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Question 28

A decrease in business taxes will most likely shift:

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Question 29

Which of the following is NOT a source of economic growth in the production function model?

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Question 30

Diminishing marginal productivity of capital implies that:

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Question 31

If 20X1 is the base year, nominal GDP in 20X1 is:

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Question 32

Household disposable income is calculated as:

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Question 33

If a government budget deficit increases, what must happen according to the fundamental macroeconomic identity?

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Question 34

Which of the following best describes 'potential GDP'?

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Question 35

A recessionary gap occurs when:

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Question 36

Classical economists argue that a recessionary gap will self-correct through:

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Question 37

Which of the following is a component of 'National Income'?

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Question 38

Expansionary monetary policy generally shifts:

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Question 39

The GDP deflator differs from the Consumer Price Index (CPI) because:

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Question 40

If labor productivity grows by 2 percent and the labor force grows by 1 percent, what is the estimated growth in potential GDP?

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Question 41

Which of the following is classified as a renewable natural resource?

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Question 42

In the context of the production function Y = A * f(L, K), what does 'A' represent?

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Question 43

If the exchange rate of the domestic currency appreciates (becomes stronger), what is the likely effect on Aggregate Demand?

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Question 44

The 'Very Short-Run Aggregate Supply' (VSRAS) curve is best described as:

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Question 45

If 100 dollars of government spending results in a total demand increase of 250 dollars, what is the fiscal multiplier?

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Question 46

Which of the following changes would shift the Short-Run Aggregate Supply (SRAS) curve to the right?

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Question 47

In the context of the business cycle, what happens to the inventory-sales ratio as an expansion reaches its peak?

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Question 48

Per-capita real GDP is often used as a measure of:

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Question 49

A transfer payment (e.g., welfare) is excluded from GDP because:

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Question 50

In a developed economy with high capital-to-labor ratios, which factor is the primary driver of sustainable long-term growth?

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