Question 1

Which of the following best explains why transfer payments such as Social Security and Medicare are excluded from the calculation of GDP in the aggregate demand formula?

Accepted Answer

They represent money transfers rather than purchases of new goods and services.

Question 2

Suppose a country increases its capital stock and simultaneously adopts new management practices that improve efficiency. According to the macroeconomic production function, what is the likely effect on real GDP?

Accepted Answer

Real GDP will increase due to both higher capital input and improved technology.

Question 3

Given the aggregate demand identity $$AD = C + I + G + (X - Im)$$, which scenario would directly increase a country's aggregate demand?

Accepted Answer

A rise in government purchases of infrastructure projects.

Question 4

Which of the following is NOT a component of aggregate demand as defined in macroeconomics?

Accepted Answer

Transfer Payments (T)

Question 5

Consider the empirically accurate production function $$Y_t = A_t 	imes K_t$$^{1/3}$$ 	imes L_t$$^{2/3}$$. If A_t$ doubles while K_t$ and L_t$ remain constant, what happens to Y_t$?

Accepted Answer

$$Y_t$$ doubles

Question 6

A country experiences a sudden war that destroys much of its capital stock and disrupts labor markets. According to macroeconomic theory, what is the most direct effect on aggregate supply?

Accepted Answer

Aggregate supply decreases because both capital and labor inputs are reduced.

Question 7

Which of the following best describes the main reason why some less wealthy countries, such as the 'Asian Tigers,' have experienced rapid economic growth compared to wealthier countries?

Accepted Answer

They can adopt existing technologies, allowing for faster catch-up growth.

Question 8

If a country is landlocked and has poor access to resources, which structural explanation for persistent global disparities does this illustrate?

Accepted Answer

Access to resources / geography

Question 9

Suppose the following changes occur in an economy: consumption increases by $$100$$, investment decreases by $$50$$, government spending increases by $$30$$, exports increase by $$20$$, and imports increase by $$10. $$What is the net change in aggregate demand?

Accepted Answer

$$90$$

Question 10

Which of the following is a plausible reason why convergence in economic growth is not observed universally across all regions?

Accepted Answer

Some regions face barriers such as weak institutions, conflict, or poor geography.

Question 11

If the capital accumulation formula is $$K_t = K_{t-1} - dK_{t-1} + I_{t-1}$$, what does the term $$dK_{t-1}$$ represent?

Accepted Answer

The depreciation of capital from the previous period.

Question 12

Which of the following best describes the role of technology ($$A) in $$the macroeconomic production function?

Accepted Answer

It acts as an effectiveness multiplier, encompassing knowledge, management, and institutions.

Question 13

During a recession, which component of aggregate demand is most likely to decrease first?

Accepted Answer

Consumption

Question 14

Which of the following scenarios would most likely cause a short-run business cycle fluctuation?

Accepted Answer

A sudden regulatory change that affects how firms operate.

Question 15

If a country improves its property rights and reduces corruption, which structural explanation for economic growth is being addressed?

Accepted Answer

Institutions and policies

Question 16

Which of the following best explains why imports are subtracted in the aggregate demand formula $$AD = C + I + G + (X - Im)$$?

Accepted Answer

Imports must be subtracted to avoid counting foreign production in domestic GDP.

Question 17

A country experiences a sudden increase in unemployment due to a global pandemic. According to macroeconomic theory, what is the most direct effect on aggregate supply?

Accepted Answer

Aggregate supply decreases because labor input is reduced.

Question 18

Which of the following is an example of a technology transfer barrier that could slow economic growth in a developing country?

Accepted Answer

Difficulty adopting modern management practices.

Question 19

If $$Y_t = A_t 	imes K_t$$^{1/3}$$ 	imes L_t$$^{2/3}$$ and both K_t$ and L_t$ increase by 10% while A_t$ remains constant, by approximately what percentage does Y_t$ increase?

Accepted Answer

6.7%

Question 20

Which of the following best summarizes the difference between long-run economic growth and business cycles?

Accepted Answer

Long-run growth is driven by input and technological progress, while business cycles are short-run fluctuations due to shocks in those parameters.

Aggregate Demand, Aggregate Supply, and Macroeconomic Theory: Study Notes

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