$$Profit = (3.50 - 2.50) \times 5 = 5.00$$

Question 1

In a monopolistically competitive market, why is the marginal revenue curve below the demand curve?

Accepted Answer

Because the firm must lower the price to sell additional units, causing marginal revenue to decrease faster than price.

Question 2

Given the table of cappuccino sales, what is the formula for calculating marginal revenue ($$MR) $$for a monopolistically competitive firm?

Accepted Answer

$$MR = \frac{\Delta TR}{\Delta Q}$$

Question 3

If a Blue Bottle coffeehouse sells 5 cappuccinos at $$3.50 each and the average total cost is 2.50$$, what is the economic profit?

Accepted Answer

$$Profit = (3.50 - 2.50) 	imes 5 = 5.00$$

Question 4

Which of the following best describes the output effect and price effect when a monopolistically competitive firm lowers its price?

Accepted Answer

Output effect: Sells more units. Price effect: Receives less revenue per unit on all units sold.

Question 5

In the long run, what happens to the economic profit of a monopolistically competitive firm?

Accepted Answer

Economic profit is eliminated as new firms enter the market, shifting the demand curve until price equals average total cost.

Question 6

Which equation represents the profit-maximizing condition for a monopolistically competitive firm?

Accepted Answer

$$MR = MC$$

Question 7

Why does the demand curve for a monopolistically competitive firm become more elastic in the long run?

Accepted Answer

Because more firms enter the market, increasing competition and giving consumers more choices.

Question 8

Which of the following is NOT a characteristic of monopolistic competition?

Accepted Answer

Firms produce at minimum average total cost in the long run.

Question 9

A monopolistically competitive firm is said to have excess capacity. What does this mean?

Accepted Answer

The firm produces less than the productively efficient level of output.

Question 10

Which of the following best explains why monopolistic competition is not allocatively efficient?

Accepted Answer

Firms charge a price greater than marginal cost, so not all units with marginal benefit equal to marginal cost are produced.

Question 11

How can a monopolistically competitive firm defend its brand name?

Accepted Answer

By applying for a trademark from the federal government.

Question 12

If a monopolistically competitive firm successfully advertises its product, what is the likely effect on its demand curve?

Accepted Answer

The demand curve shifts to the right and becomes more inelastic.

Question 13

Which formula is used to calculate average revenue ($$AR) $$for a monopolistically competitive firm?

Accepted Answer

$$AR = \frac{TR}{Q}$$

Question 14

In the short run, a monopolistically competitive firm can earn an economic profit. What attracts new firms to enter the market?

Accepted Answer

The existence of economic profit signals opportunity, encouraging entry.

Question 15

Which of the following is a real-world example of product differentiation in monopolistic competition?

Accepted Answer

A coffee shop offering unique flavors and specialty drinks.

Question 16

If a monopolistically competitive firm introduces a new technology that lowers its average cost, what is likely to happen in the long run?

Accepted Answer

Competing firms will eventually duplicate the technology, eliminating the economic profit.

Question 17

Which of the following best describes the trade-off consumers face in monopolistic competition?

Accepted Answer

Consumers pay a higher price than marginal cost but benefit from differentiated products suited to their tastes.

Question 18

Which marketing tool is NOT used by monopolistically competitive firms to differentiate their products?

Accepted Answer

Price discrimination

Question 19

In a monopolistically competitive market, what happens if firms are suffering economic losses in the short run?

Accepted Answer

Some firms will exit the market, shifting the demand curve for remaining firms to the right.

Question 20

Which statement is true about the long-run equilibrium in monopolistic competition compared to perfect competition?

Accepted Answer

Both earn zero economic profit, but monopolistic competition is neither allocatively nor productively efficient.

Monopolistic Competition: The Competitive Model in a More Realistic Setting

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