Question 1

According to the perfectly competitive benchmark, which of the following is NOT a function of the invisible hand?

Accepted Answer

Ensures equal distribution of income among all participants.

Question 2

Adam Smith’s concept of the 'invisible hand' suggests that:

Accepted Answer

Self-interested behavior by individuals can lead to socially optimal outcomes.

Question 3

Which of the following best describes Pareto efficiency?

Accepted Answer

A situation where no one can be made better off without making someone else worse off.

Question 4

Suppose the demand and supply in the banjo market are given by $$Q_d = 12 - P$$ and $$Q_s = -2 + P. $$What is the equilibrium price and quantity?

Accepted Answer

$$P = 7, Q = 5$$

Question 5

In a perfectly competitive market, what is the effect of a binding price ceiling set below the equilibrium price?

Accepted Answer

It creates a shortage and deadweight loss.

Question 6

If the marginal benefit (demand) exceeds the marginal cost (supply) in a market, what does this imply?

Accepted Answer

There are potential gains from trade that are not being realized.

Question 7

Which of the following statements about prices in a perfectly competitive market is correct?

Accepted Answer

Prices act as signals that direct resources to their highest valued use.

Question 8

Consider a market where the government imposes a price floor above the equilibrium price. What is the likely outcome?

Accepted Answer

A surplus and deadweight loss.

Question 9

Social (or total) surplus in a market is defined as:

Accepted Answer

The sum of consumer surplus and producer surplus.

Question 10

Which of the following is a trade-off highlighted by the efficiency of the perfectly competitive benchmark?

Accepted Answer

Between maximizing the economic pie and dividing it equally.

Question 11

If a market is Pareto efficient, which of the following statements is true?

Accepted Answer

No one can be made better off without making someone else worse off.

Question 12

In the context of Adam Smith’s 'invisible hand', which of the following best explains why self-interested behavior can lead to efficient outcomes?

Accepted Answer

Because individuals acting in their own interest unintentionally promote the overall good of society.

Question 13

Suppose the government sets a price ceiling in the banjo market at $$P = 5. $$Given $$Q_d = 12 - P$$ and $$Q_s = -2 + P$$, what is the resulting quantity traded?

Accepted Answer

$$Q = 3$$

Question 14

Which of the following is an example of deadweight loss?

Accepted Answer

The reduction in social surplus due to a binding price control.

Question 15

If a perfectly competitive market is in equilibrium, what can be said about the allocation of resources?

Accepted Answer

Resources are allocated to their highest valued use.

Question 16

Which of the following best describes the role of prices in the invisible hand mechanism?

Accepted Answer

Prices act as signals that guide the allocation of resources.

Question 17

A market is said to be efficient if:

Accepted Answer

It maximizes total surplus.

Question 18

Which of the following is NOT a necessary condition for the invisible hand to maximize social welfare?

Accepted Answer

Government price controls.

Question 19

If the government wants to make a good more affordable and sets a price ceiling below equilibrium, what happens to consumer and producer surplus?

Accepted Answer

Consumer surplus may increase, producer surplus decreases, and total surplus falls due to deadweight loss.

Question 20

Which of the following is a real-world example of the invisible hand at work?

Accepted Answer

Ride-sharing companies like Uber adjusting prices during demand surges.

Efficiency, the Invisible Hand, and Adam Smith in Perfect Competition

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