Question 1

Industries that are made up of many competing producers, each selling a differentiated product, and whose firms eventually earn zero economic profits in the long run are:

Accepted Answer

The description given in the question matches the characteristics of a monopolistically competitive market structure, where firms produce differentiated products and have some degree of market power, but eventually experience zero economic profit in the long run due to competition.

Question 2

Both monopolists and monopolistic competitors:

Accepted Answer

Both monopolists and monopolistic competitors charge a price that is greater than the marginal cost of production. However, monopolies have higher barriers to entry and produce a unique product, while monopolistic competitors have lower barriers to entry and produce a differentiated product. Neither monopolies nor monopolistic competitors necessarily make positive economic profits in the long run, as their profits may be eroded by competition or regulation.

Question 3

Consider the demand curve for a firm in perfect competition, a firm in monopolistic competition, and a monopolist.Which is likely to be the least elastic and which is likely to be the most elastic? Explain.

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Question 4

A monopolistically competitive firm is operating in the short run, is operating at the optimal level of output, and is earning positive economic profits.Describe how this industry will adjust in the long run.

Accepted Answer

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Question 5

Scenario: Monopolistically Competitive Firm A monopolistically competitive firm's demand for its product is equal to Q = 160 - P, and its MC curve is equal to MC = 20 + 2Q.Its TC curve is as follows: TC = 20Q + Q₂ + 20.
(Scenario: Monopolistically Competitive Firm) Given the information in the scenario Monopolistically Competitive Firm, in the long run, this firm can expect that:

Accepted Answer

In the long run of a monopolistically competitive market, firms will continue to enter the industry until economic profits are driven to zero. The given TC curve includes fixed costs represented by Q₂ and it will not change in the long run. Therefore, as new firms enter the market and increase competition, the demand curve for this firm will shift leftward, causing a decrease in price and subsequently reducing economic profits. Ultimately, this firm can expect to earn zero economic profits in the long run. Therefore, option B is the correct answer. Option A is incorrect because as the firm dominates the market, it will have more pricing power, making its demand curve less elastic. Option C is incorrect because the given information does not indicate any factors that would cause losses to eventually turn into positive economic profits. Option D is incorrect because as demand decreases and economic profits decrease, firms will exit the industry, allowing remaining firms to have more market power.

Question 6

Figure: Monopolistic Competitor
(Figure: Monopolistic Competitor) If the firm shown in the figure Monopolistic Competitor profit-maximizes, it will:

Accepted Answer

A monopolistic competitor maximizes profit where marginal cost (MC) equals marginal revenue (MR). If the price at this quantity is above average total cost (ATC), the firm earns a positive economic profit.

Question 7

Consumers' differing tastes are one reason why monopolistic:

Accepted Answer

Monopolistic competitors are similar to monopolists because they have some degree of market power due to product differentiation, which is influenced by consumers' differing tastes.

Question 8

Scenario: Monopolistically Competitive Firm A monopolistically competitive firm's demand for its product is equal to Q = 160 - P, and its MC curve is equal to MC = 20 + 2Q.Its TC curve is as follows: TC = 20Q + Q₂ + 20.
(Scenario: Monopolistically Competitive Firm) Given the information in the scenario Monopolistically Competitive Firm, what is the fixed cost for this firm?

Accepted Answer

Fixed costs can be calculated by finding the total cost when output is zero. TC = 20(0) + Q₂ + 20 = Q₂ + 20. Since there is no information given about Q₂, we can assume that it is zero in the short run. Therefore, fixed costs equal $20. Option A is incorrect because the scenario does not specify that it is the long run. Option B is incorrect because fixed costs cannot be equal to the demand for the product. Option D is incorrect because it does not accurately calculate fixed costs.

Question 9

Do economists consider advertising to be an economically productive activity? Explain.

Accepted Answer

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Question 10

In the long run, perfect competitors and monopolistic competitors are similar in that they:

Accepted Answer

Perfect competitors and monopolistic competitors are similar in that they both produce an output level at which P = ATC in the long run. This is because in the long run, both types of firms will enter or exit the market until the price is equal to the average total cost of production.

Question 11

Monopolistically competitive firms:

Accepted Answer

Monopolistically competitive firms can earn positive economic profit in the short run if price is greater than the average total cost (ATC). However, in the long run, due to the ease of entry and exit in the market, economic profits will attract new firms and competition will increase, causing the demand curve to shift leftward and reducing the economic profit to zero. Choices A and D are incorrect because monopolistically competitive firms do not collude and will set price where marginal revenue (MR) equals marginal cost (MC), not where MC is greater than MR. Choice B is incorrect because monopolistically competitive firms produce at a point where price is greater than marginal cost (MC) but less than average total cost (ATC), which means they do not produce at the minimum ATC.

Question 12

Scenario: Monopolistically Competitive Firm A monopolistically competitive firm's demand for its product is equal to Q = 160 - P, and its MC curve is equal to MC = 20 + 2Q.Its TC curve is as follows: TC = 20Q + Q₂ + 20.
(Scenario: Monopolistically Competitive Firm) Given the information in the scenario Monopolistically Competitive Firm, what is the profit-maximizing level of output for this firm in the short run?

Accepted Answer

To find the profit-maximizing level of output for the firm, we need to set marginal revenue (MR) equal to marginal cost (MC) and solve for Q.

First, we can find the firm's marginal revenue by taking the derivative of the demand function:
MR = dTR/dQ = 160 - 2Q

Setting MR equal to MC:
160 - 2Q = 20 + 2Q
Solving for Q:
4Q = 140
Q = 35

Therefore, the profit-maximizing level of output for this firm in the short run is 35 units.

Question 13

Which industry type, perfect competition or monopolistic competition, produces the least deadweight loss? Which industry type is preferred by society? Explain.

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Question 14

Why are some consumers willing to pay more for a bottle of Advil than they are willing to pay for a bottle of ibuprofen tablets, when ibuprofen is the pain-relieving ingredient found in Advil?

Accepted Answer

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Question 15

A monopolistically competitive firm is operating in the short run at the optimal level of output and earns negative economic profits.Describe how this industry will adjust in the long run.

Accepted Answer

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Question 16

Your friend Angelina is the owner of a boutique clothing store in a monopolistically competitive clothing market.The market is in long-run equilibrium.Over coffee, Angelina tells you that she is considering raising the price of her clothing to increase her profits.What is your advice?

Accepted Answer

The answer of Your friend Angelina is the owner of...

Question 17

When Henry Ford produced his cars, he ________, while GM produced its cars _.

Accepted Answer

Henry Ford was known for his focus on maximizing economies of scale through the use of standardized, mass-produced parts and assembly line production. In contrast, GM was known for its emphasis on product differentiation, offering a wider range of models and features to appeal to different customer segments. Therefore, option B, which states that Ford maximized economies of scale while GM emphasized product differentiation, is the best choice. Henry Ford's production system was based on maximizing economies of scale, which allowed him to produce his cars at a lower cost and sell them at a lower price than his competitors. On the other hand, GM focused on product differentiation, which allowed them to offer cars with different features and styles to appeal to a broader range of customers. While GM also benefited from economies of scale, they did not prioritize it as much as Ford did. Therefore, the best choice is B - Henry Ford maximized economies of scale, while GM produced its cars with an emphasis on product differentiation.

Question 18

Scenario: Monopolistically Competitive Firm A monopolistically competitive firm's demand for its product is equal to Q = 160 - P, and its MC curve is equal to MC = 20 + 2Q.Its TC curve is as follows: TC = 20Q + Q₂ + 20.
(Scenario: Monopolistically Competitive Firm) Given the information in the scenario Monopolistically Competitive Firm, in the short run, this firm:

Accepted Answer

In the short run, a monopolistically competitive firm will produce where MR = MC. MR = 160 - 2Q and MC = 20 + 2Q. Setting these equal, we get 160 - 2Q = 20 + 2Q, which implies Q = 35. Plugging this back into the demand curve, we get P = 160 - 35 = 125. Thus, the firm's total revenue is TR = P * Q = 125 * 35 = 4,375. The firm's total cost is TC = 20Q + Q₂ + 20 = 20 * 35 + 35² + 20 = 2,195. Thus, the firm's profit is π = TR - TC = 4,375 - 2,195 = 2,430.

Question 19

Scenario: Monopolistically Competitive Firm A monopolistically competitive firm's demand for its product is equal to Q = 160 - P, and its MC curve is equal to MC = 20 + 2Q.Its TC curve is as follows: TC = 20Q + Q₂ + 20.
(Scenario: Monopolistically Competitive Firm) Given the information in the scenario Monopolistically Competitive Firm, what is the profit-maximizing price for this firm?

Accepted Answer

To find the profit-maximizing price, first find the marginal revenue (MR) by differentiating the total revenue (TR = P*Q) with respect to Q. The inverse demand function is P = 160 - Q, so TR = (160 - Q)Q = 160Q - Q². Differentiating TR with respect to Q gives MR = 160 - 2Q. Set MR equal to MC to find the profit-maximizing quantity: 160 - 2Q = 20 + 2Q, solving gives Q = 35. Substitute Q = 35 back into the demand equation to find the price: P = 160 - 35 = 125.

Question 20

In the long run, monopolistic competitors will:

Accepted Answer

In the long run, monopolistic competitors will earn zero economic profits because other firms will enter the market and compete away any excess profits. This is due to the relatively low barriers to entry in monopolistically competitive markets. Therefore, firms will only earn enough revenue to cover their costs, which will result in zero economic profits in the long run. Monopolistic competitors will earn zero economic profit in the long run because when profits are positive, new firms will enter the market, causing demand for existing firms to decrease until profits are driven to zero. Similarly, when profits are negative, some firms will exit the market, causing demand and prices for remaining firms to increase until profits are driven back to zero. This process will continue until all firms in the market are earning zero economic profit.

Quiz 15: Monopolistic Competition and Product Differentiation