Question 1

Which of the following best describes the economic concept of 'marginal' as used in microeconomics?

Accepted Answer

The additional or extra benefit or cost from consuming or producing one more unit

Question 2

According to the study materials, what is the key formula for optimal decision-making in microeconomics?

Accepted Answer

$$Marginal\ Benefit - Marginal\ Cost$$

Question 3

A rational consumer will continue to consume slices of pepperoni pizza until:

Accepted Answer

Marginal benefit equals marginal cost

Question 4

Which of the following is NOT an example of responding to economic incentives?

Accepted Answer

A consumer ignores a sale and pays full price out of habit

Question 5

If the marginal benefit of eating a third slice of pizza is less than the marginal cost, what should a rational individual do?

Accepted Answer

Not eat the third slice

Question 6

Which of the following statements best reflects the concept of allocative efficiency?

Accepted Answer

Resources are distributed so that marginal benefit equals marginal cost

Question 7

Marginal analysis involves:

Accepted Answer

Comparing additional benefits and additional costs of a decision

Question 8

A firm is considering hiring one more worker. The marginal benefit of hiring is $$100, and the marginal cost is 120. $$What should the firm do?

Accepted Answer

Not hire the worker because marginal cost exceeds marginal benefit

Question 9

Which of the following best illustrates the idea that 'people are rational' in economics?

Accepted Answer

People use all available information to do their best with what they have

Question 10

Suppose the marginal benefit of consuming a good decreases as more is consumed, while marginal cost remains constant. What is the optimal consumption rule?

Accepted Answer

Consume until marginal benefit equals marginal cost

Question 11

If a firm ignores opportunity costs when making decisions, what is the likely result?

Accepted Answer

The firm may make suboptimal choices and reduce efficiency

Question 12

Which of the following is an example of marginal analysis in a real-world context?

Accepted Answer

A student decides whether to study one more hour for an exam

Question 13

What does the slope of the marginal benefit curve represent in the context of pizza consumption?

Accepted Answer

The change in happiness from consuming one more slice

Question 14

Which of the following best describes the profit-maximizing point for a firm?

Accepted Answer

Where marginal benefit equals marginal cost

Question 15

If a consumer continues to consume a good even when marginal cost exceeds marginal benefit, what is the likely outcome?

Accepted Answer

The consumer reduces their overall well-being

Three Key Economic Ideas: Rationality, Incentives, and Marginal Analysis

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