Q: If the Consumer Price Index (CPI) increases from 120 to 126 over one year, what is the annual inflation rate?

$$\frac{126 - 120}{120} \times 100 = 5\%$$

Q: Suppose the government increases its spending by $$100$$ million, and the MPC is $$0.75. $$What is the total change in GDP according to the simple multiplier model?

$$\frac{1}{1 - 0.75} \times 100 = 400$$ million

Q: If the required reserve ratio is 10%, what is the maximum potential increase in the money supply from a new deposit of $1,000?

$$\frac{1}{0.10} \times 1,000 = 10,000$$

Question 1

Which of the following best describes the primary focus of macroeconomics as outlined in the course description?

Accepted Answer

The examination of aggregate economic variables such as employment, output, and the price level.

Question 2

Suppose the economy is experiencing high unemployment and low output. According to macroeconomic principles, which policy tool is most directly used to address this situation?

Accepted Answer

Increasing government spending or lowering interest rates to stimulate aggregate demand.

Question 3

Which of the following equations correctly represents the calculation of Gross Domestic Product (GDP) using the expenditure approach?

Accepted Answer

$$GDP = C + I + G + (X - M)$$

Question 4

If the Consumer Price Index (CPI) increases from 120 to 126 over one year, what is the annual inflation rate?

Accepted Answer

$$\frac{126 - 120}{120} 	imes 100 = 5\%$$

Question 5

Which of the following is NOT considered a component of aggregate demand?

Accepted Answer

Transfer payments

Question 6

A country has the following data (in billions): Consumption = $$500$$, Investment = $$200$$, Government Spending = $$300$$, Exports = $$100$$, Imports = $$150. $$What is the GDP?

Accepted Answer

$$500 + 200 + 300 + (100 - 150) = 950$$

Question 7

If the marginal propensity to consume (MPC) is $$0.8$$, what is the value of the simple spending multiplier?

Accepted Answer

$$\frac{1}{1 - 0.8} = 5$$

Question 8

Which of the following best explains why transfer payments are excluded from the calculation of GDP?

Accepted Answer

They do not represent payments for currently produced goods or services.

Question 9

Suppose the government increases its spending by $$100$$ million, and the MPC is $$0.75. $$What is the total change in GDP according to the simple multiplier model?

Accepted Answer

$$\frac{1}{1 - 0.75} 	imes 100 = 400$$ million

Question 10

Which of the following scenarios best illustrates the concept of cyclical unemployment?

Accepted Answer

A factory worker is laid off during a recession due to decreased demand for cars.

Question 11

If the nominal GDP in a country increases by 10% while the GDP deflator increases by 4%, what is the real GDP growth rate?

Accepted Answer

$$10\% - 4\% = 6\%$$

Question 12

Which of the following best describes the role of the central bank in the economy?

Accepted Answer

It controls the money supply and sets key interest rates to influence economic activity.

Question 13

If the required reserve ratio is 10%, what is the maximum potential increase in the money supply from a new deposit of $1,000?

Accepted Answer

$$\frac{1}{0.10} 	imes 1,000 = 10,000$$

Question 14

Which of the following is an example of contractionary monetary policy?

Accepted Answer

The central bank raises the discount rate.

Question 15

Suppose the economy is at full employment and the government increases its spending. According to the aggregate demand and supply model, what is the likely short-run effect?

Accepted Answer

Aggregate demand increases, leading to higher output and higher price level (inflation).

Question 16

Which of the following best explains why the aggregate demand curve slopes downward?

Accepted Answer

A higher price level reduces the real value of money balances, decreasing consumption and investment.

Question 17

If the economy is experiencing demand-pull inflation, which of the following is most likely occurring?

Accepted Answer

Aggregate demand is increasing faster than aggregate supply.

Question 18

Which of the following is a likely consequence of a persistent government budget deficit?

Accepted Answer

An increase in the national debt over time.

Question 19

Suppose the unemployment rate is 8%, the natural rate of unemployment is 5%, and the labor force is 100 million. How many people are cyclically unemployed?

Accepted Answer

$$8\% - 5\% = 3\% of$$ $$100$$ million $$= 3$$ million

ECON 110 Principles of Macroeconomics – Syllabus and Study Guide

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