Q: Which of the following equations correctly represents the calculation of the inflation rate using the GDP deflator?

$$ \text{Inflation Rate} = \frac{\text{GDP Deflator}_{t} - \text{GDP Deflator}_{t-1}}{\text{GDP Deflator}_{t-1}} \times 100 $$

Question 1

Which of the following best describes the concept of opportunity cost?

Accepted Answer

The highest-valued alternative that must be given up to engage in an activity.

Question 2

Suppose Becky earns $$60,000 per year as a teacher and is considering quitting to start her own language institute. She could also work as an editor earning 50$$,000 per year. If she needs to pay $$12,000 per year in rent instead of 10$$,000 to be closer to her new institute, what is her total opportunity cost of becoming self-employed?

Accepted Answer

$$50,000 + (12$$,000 - $$10,000) = 52$$,000

Question 3

Which of the following is an example of a positive economic statement?

Accepted Answer

Unemployment is currently at 20%.

Question 4

In macroeconomics, which aggregate statistic is most directly used to measure the overall price level in an economy?

Accepted Answer

GDP deflator

Question 5

A market economy is characterized by which of the following?

Accepted Answer

Households and firms interacting in markets allocate resources.

Question 6

Which of the following best illustrates the concept of marginal analysis?

Accepted Answer

Comparing the additional benefit of studying one more hour to the additional cost of lost sleep.

Question 7

If the marginal benefit (MB) of producing one more unit of a good is $$50 and the marginal cost (MC) is 40$$, what should a rational producer do?

Accepted Answer

Produce more of the good.

Question 8

Which of the following equations correctly represents the calculation of the inflation rate using the GDP deflator?

Accepted Answer

$$ 	ext{Inflation Rate} = \frac{	ext{GDP Deflator}_{t} - 	ext{GDP Deflator}_{t-1}}{	ext{GDP Deflator}_{t-1}} 	imes 100 $$

Question 9

Which of the following is NOT a key economic question that every society must answer?

Accepted Answer

How will profits be maximized for all firms?

Question 10

Which of the following best describes productive efficiency?

Accepted Answer

Goods and services are produced at the lowest possible cost.

Question 11

A mixed economy is best described as:

Accepted Answer

An economy where most allocations result from market interactions, but the government plays a significant role.

Question 12

Which of the following statements about efficiency and equity is correct?

Accepted Answer

Efficient outcomes may not be fair, and more equitable outcomes may be less efficient.

Question 13

Which of the following is a normative statement?

Accepted Answer

The government should provide more benefits for the poorest.

Question 14

Suppose a country increases its production of military goods, resulting in fewer resources for producing consumer goods. This scenario best illustrates which economic concept?

Accepted Answer

Trade-offs due to scarcity

Question 15

Which of the following is an example of allocative efficiency?

Accepted Answer

A bakery produces exactly the number of cakes that consumers want to buy, so that the marginal benefit equals the marginal cost.

Question 16

Which of the following best describes the scientific method as used in economics?

Accepted Answer

Formulate a testable hypothesis, use data to test it, revise the model if necessary, and retain the revised model for future questions.

Question 17

If a government wants to increase equity in society, which of the following policies is most likely to achieve this goal?

Accepted Answer

Increasing benefits for the poorest members of society.

Question 18

Which of the following is a plausible reason why market economies tend to be more efficient than centrally planned economies?

Accepted Answer

Market economies promote productive and allocative efficiency through the interaction of buyers and sellers.

Question 19

A student is deciding whether to spend an extra hour studying economics or watching a movie. The marginal benefit of studying is a higher grade, while the marginal cost is missing out on entertainment. According to economic theory, the student should:

Accepted Answer

Study if the marginal benefit exceeds the marginal cost.

Question 20

Which of the following best defines a market in economic terms?

Accepted Answer

A group of buyers and sellers of a good or service and the institution or arrangement by which they come together to trade.

Introduction to Macroeconomics: Key Concepts and Foundations

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