Question 1

Which of the following best describes the modern definition of economics?

Accepted Answer

Economics studies how incentives affect choices in the face of scarcity.

Question 2

A student spends 10 hours per week on leisure and 8 hours on teaching. If the student decides to spend 2 more hours on teaching by reducing leisure time, what is the opportunity cost of this decision?

Accepted Answer

The opportunity cost is 2 hours of leisure lost.

Question 3

Which of the following equations represents the general form of a straight line, as required for microeconomics mathematics?

Accepted Answer

$$y = mx + b$$

Question 4

Suppose a city adds a new road to reduce traffic congestion, but travel times increase for everyone. Which concept does this scenario illustrate?

Accepted Answer

Braess' Paradox

Question 5

Which of the following statements is an example of positive economics?

Accepted Answer

"Raising taxes on gasoline will reduce traffic congestion."

Question 6

A rational agent will make an optimal choice when:

Accepted Answer

Marginal benefit equals marginal cost.

Question 7

If a new tunnel is built in a city and it increases travel time by 15 minutes for all drivers, what is the most likely economic explanation?

Accepted Answer

The tunnel led to Braess' Paradox due to congestion externalities.

Question 8

Which of the following best describes a Pareto efficient outcome?

Accepted Answer

An outcome where at least one person is made better off and no one is made worse off.

Question 9

A city closes a major road, and traffic congestion improves. According to microeconomic theory, what is the most plausible explanation?

Accepted Answer

Closing the road eliminated a route that caused congestion externalities, illustrating Braess' Paradox.

Question 10

Which of the following is NOT a sufficient condition for success in the microeconomics course, according to the study materials?

Accepted Answer

Ignoring the textbook and relying only on intuition

Question 11

Suppose a student is deciding between spending an extra hour studying economics or working a part-time job that pays $15 per hour. If the student chooses to study, what is the opportunity cost?

Accepted Answer

$15, the wage foregone from not working.

Question 12

Which of the following best illustrates the concept of a trade-off?

Accepted Answer

Choosing to spend more time on leisure means less time for studying.

Question 13

If the equation for a line is $$y = 3x + 2$$, what is the slope of the line?

Accepted Answer

$$3$$

Question 14

Which of the following is a normative economic statement?

Accepted Answer

"The government should increase spending on education."

Question 15

A navigation system sends cars to the least congested route. If 500 cars are distributed over 100 units of road capacity, what is the average number of cars per unit?

Accepted Answer

$$5$$

Question 16

Which of the following is an example of an incentive in economics?

Accepted Answer

A penalty for late payment of taxes.

Question 17

If a rational agent faces a choice where the marginal benefit of an action is less than the marginal cost, what should the agent do?

Accepted Answer

Decrease the action to maximize net benefit.

Question 18

Which of the following best describes the difference between self-interest and social-interest in economics?

Accepted Answer

Self-interest is what is best for the individual, while social-interest is what is best for society as a whole.

Question 19

Suppose a city has two routes, each with a travel time of $$\frac{2000}{100} = 20$$ minutes when 2000 cars use each route. If a new central route is added and all drivers switch to it, increasing travel time to 35 minutes, what economic principle is illustrated?

Accepted Answer

Braess' Paradox, where adding capacity worsens congestion.

Question 20

Which of the following is a real-world example supporting the existence of Braess' Paradox?

Accepted Answer

The closure of the Embarcadero Freeway in San Francisco improved traffic flow.

Introduction to Microeconomics: Course Overview and Core Concepts

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