International Economics, 10e (Krugman/Obstfeld/Melitz)
Chapter 8 Firms in the Global Economy: Export Decisions, Outsourcing, and Multinational Enterprises
8.1 The Theory of Imperfect Competition
1) A monopolistic firm
A) will never sell a product whose demand is inelastic at the quantity sold.
B) can sell as much as it wants for any price it determines in the market.
C) cannot determine the price, which is determined by consumer demand.
D) cannot sell additional quantity unless it raises the price on each unit.
E) will always earn a profit in the long run.
Answer: A
Page Ref: 166-168
Difficulty: Easy
2) Monopolistic competition is associated with
A) product differentiation.
B) price-taking behavior.
C) explicit consideration at the firm level of the strategic impact of other firms' pricing decisions.
D) high profit margins in the long run.
E) increasing returns to scale.
Answer: A
Page Ref: 169-173
Difficulty: Easy
3) Modeling trade in imperfectly competitive industries is problematic because
A) there is no single generally accepted model of behavior by imperfectly competitive firms.
B) there are no models of imperfectly competitive behavior.
C) it is difficult to find an imperfectly competitive firm in the real world.
D) collusion among imperfectly competitive firms makes usable data rare.
E) there is only a single model of imperfect competition (monopoly) but imperfect competition can take many forms in the real world.
Answer: A
Page Ref: 165-166
Difficulty: Easy
4) The simultaneous export and import of widgets by the United States is an example of
A) intra-industry trade.
B) increasing returns to scale.
C) imperfect competition.
D) inter-industry trade.
E) the effect of a monopoly on international trade.
Answer: A
Page Ref: 177-178
Difficulty: Easy
5) When a country both exports and imports a type of commodity, the country is engaged in
A) intra-industry trade.
B) increasing returns to scale.
C) imperfect competition.
D) inter-industry trade.
E) an attempt to monopolize the relevant industry.
Answer: A
Page Ref: 177-178
Difficulty: Easy
6) If there are a large number of firms in a monopolistically competitive industry
A) long-run profit will be equal to zero.
B) the country in which the firms are located can be expected to export the goods they produce.
C) there will be barriers to entry that prevent addition firms from entering the industry.
D) the firms will converge production on a standardized product.
E) there will be a small number of firms that are very large and the rest will be very small.
Answer: A
Page Ref: 170-172
Difficulty: Easy
7) It is possible that trade based on external scale economies may leave a country worse off than it would have been without trade. Explain how this could happen.
Answer: One answer is that the terms of trade effects may dominate any other factors.
Page Ref: 177-178
Difficulty: Easy
8) If a firm increases its output in the ________ and unit costs ________, then the firm is experiencing ________ of scale.
A) long-run; decrease; economies
B) short-run; decrease; economies
C) long-run; decrease; diseconomies
D) short-run; decrease; diseconomies
E) long-run; increase; economies
Answer: A
Page Ref: 177-178
Difficulty: Easy
9) If a firm increases its output in the ________ and unit costs ________, then the firm is experiencing ________ of scale.
A) long-run; increase; diseconomies
B) short-run; decrease; economies
C) long-run; decrease; diseconomies
D) short-run; decrease; diseconomies
E) long-run; increase; economies
Answer: A
Page Ref: 177-178
Difficulty: Easy
10) If a firm that uses a production process that yields economies of scale charges a price equal to ________, then profit will be ________.
A) marginal cost; negative
B) marginal revenue; maximized
C) marginal cost; maximized
D) marginal revenue; positive
E) marginal cost; positive
Answer: A
Page Ref: 177-178
Difficulty: Moderate
11) Firms that produce ________ products must be ________ competitive.
A) differentiated; imperfectly
B) differentiated; perfectly
C) standardized; imperfectly
D) standardized; perfectly
E) exported; imperfectly
Answer: A
Page Ref: 177-178
Difficulty: Moderate
12) Imperfectly competitive firms have a demand curve that ________ and a marginal revenue curve that ________ and is ________ the demand curve.
A) slopes downward; slopes downward; below
B) is horizontal; is horizontal; the same as
C) slopes downward; is horizontal; above
D) is horizontal; slopes downward; below
E) slopes downward; slopes downward; the same as
Answer: A
Page Ref: 177-178
Difficulty: Easy
13) An imperfectly competitive firm has the following demand curve: Q = 100 - 2P. What is marginal revenue equal to when P = 30?
Answer: Q = 40, so MR = 30 - (40/2) = 10.
Page Ref: 167
Difficulty: Moderate
14) An imperfectly competitive firm has the following demand curve: Q = 100 - 2P. What is marginal revenue equal to when P = 40?
Answer: Q = 20, so MR = 40 - (20/2) = 30.
Page Ref: 167
Difficulty: Moderate
15) An imperfectly competitive firm has the following total cost curve: C = 100 + 4Q. What is marginal cost equal to when Q = 10?
Answer: MC = 4 for any Q
Page Ref: 167
Difficulty: Moderate
16) An imperfectly competitive firm has the following total cost curve: C = 100 + 4Q. What is total cost equal to when Q = 10?
Answer: C = 100 + (4)(10) = 140
Page Ref: 167
Difficulty: Moderate
17) An imperfectly competitive firm has the following total cost curve: C = 100 + 4Q. What is average total cost equal to when Q = 10?
Answer: C/Q = [100 + (4)(10)]/10 = 14
Page Ref: 167
Difficulty: Moderate
18) An imperfectly competitive firm has the following total cost curve: C = 100 + 4Q. What is average fixed cost equal to when Q = 10?
Answer: F/Q = 100/10 = 10
Page Ref: 167
Difficulty: Moderate
19) Under oligopoly, firms' pricing policies are ________ and, under monopolistic competition, they are ________.
A) interdependent; independent
B) independent; interdependent
C) cooperative; uncooperative
D) uncooperative; cooperative
E) profit maximizing; revenue maximizing
Answer: A
Page Ref: 168-172
Difficulty: Moderate
20) Under the model of monopolistic competition, a(an) ________ in the number of firms in the industry will cause ________ to ________.
A) increase; average price; decrease
B) increase; average price; increase
C) increase; average cost; decrease
D) decrease; markup; decrease
E) increase; marginal cost; decrease
Answer: A
Page Ref: 168-172
Difficulty: Moderate
21) Under the model of monopolistic competition, a(an) ________ in the number of firms in the industry will cause ________ to ________.
A) increase; markup; decrease
B) increase; average price; increase
C) increase; average cost; decrease
D) decrease; markup; decrease
E) increase; marginal cost; decrease
Answer: A
Page Ref: 168-172
Difficulty: Moderate
8.2 Monopolistic Competition and Trade
1) Intra-industry trade is most common in the trade patterns of
A) the industrial countries of Western Europe.
B) the developing countries of Asia and Africa.
C) raw material producers.
D) China with the rest of the world.
E) labor-intensive products.
Answer: A
Page Ref: 179
Difficulty: Easy
2) If the market for products produced by firms in a monopolistically competitive industry becomes ________, then there will be ________ firms and each firm will produce ________ output and charge a ________ price.
A) larger; more; more; lower
B) larger; fewer; more; lower
C) larger; fewer; more; higher
D) larger; more; more; higher
E) larger; more; less; higher
Answer: A
Page Ref: 173-175
Difficulty: Easy
3) International trade based on external scale economies in both countries is likely to be carried out by
A) a relatively large number of price competing firms.
B) a relatively small number of price competing firms.
C) a relatively small number of imperfect competitors.
D) monopolists in each country.
E) a large number of oligopolists in each country.
Answer: A
Page Ref: 173-178
Difficulty: Easy
4) International trade based solely on internal scale economies in both countries is likely to be carried out by
A) monopolists in each country.
B) a relatively large number of price competing firms.
C) a relatively small number of price competing firms.
D) a relatively small number of imperfect competitors.
E) a large number of oligopolists in each country.
Answer: A
Page Ref: 173-178
Difficulty: Easy
5) A monopoly firm engaged in international trade will
A) equate marginal costs with marginal revenues in both domestic and foreign markets.
B) equate average to local costs.
C) equate marginal costs with foreign marginal revenues.
D) equate marginal costs with the highest price the market will bear.
E) equate marginal costs with the relative world prices.
Answer: A
Page Ref: 173-178
Difficulty: Easy
6) A monopoly firm will maximize profits by producing where
A) marginal revenue is the same in domestic and foreign markets.
B) prices are the same in domestic and foreign markets.
C) marginal revenue is higher in foreign markets.
D) marginal revenue is higher in the domestic market.
E) total revenue from domestic and foreign sales is maximized.
Answer: A
Page Ref: 173-178
Difficulty: Moderate
7) A firm in long-run equilibrium under monopolistic competition will earn
A) zero economic profits because of free entry.
B) positive monopoly profits because each sells a differentiated product.
C) positive oligopoly profits because each firm sells a differentiated product.
D) negative economic profits because it has economies of scale.
E) positive economic profit if it engages in international trade.
Answer: A
Page Ref: 173-178
Difficulty: Easy
8) An industry is characterized by scale economies, and exists in two countries. Should these two countries engage in trade such that the combined market is supplied by one country's industry, then
A) consumers in both countries would have more varieties and lower prices.
B) consumers in both countries would have higher prices and fewer varieties.
C) consumers in the importing country only would have higher prices and fewer varieties.
D) consumers in the exporting country only would have higher prices and fewer varieties.
E) consumers in both countries would have fewer varieties at lower prices.
Answer: A
Page Ref: 173-178
Difficulty: Easy
9) An industry is characterized by scale economies and exists in two countries. In order for consumers of its products to enjoy both lower prices and more variety of choice
A) the two countries must engage in international trade with each other.
B) each country's marginal cost must equal that of the other country.
C) the marginal cost of this industry must equal marginal revenue in the other.
D) the monopoly must lower prices in order to sell more.
E) they must combine to become a multinational corporation.
Answer: A
Page Ref: 173-178
Difficulty: Moderate
10) A product is produced in a monopolistically competitive industry with scale economies. If this industry exists in two countries, and these two countries engage in trade with each other, then we would expect
A) each country will export different varieties of the product to the other.
B) the country in which the price of the product is lower will export the product.
C) the country with a relative abundance of the factor of production in which production of the product is intensive will export this product.
D) neither country will export this product since there is no comparative advantage.
E) the countries will trade only with other nations they are not in competition with.
Answer: A
Page Ref: 173-178
Difficulty: Easy
11) Two countries engaged in trade in products with no scale economies, produced under conditions of perfect competition, are likely to be engaged in
A) inter-industry trade.
B) monopolistic competition.
C) intra-industry trade.
D) Heckscher-Ohlin trade.
E) oligopolistic competition
Answer: A
Page Ref: 173-178
Difficulty: Easy
12) Two countries engaged in trade in products with scale economies, produced under conditions of monopolistic competition, are likely to be engaged in
A) intra-industry trade.
B) price competition.
C) inter-industry trade.
D) Heckscher-Ohlinean trade.
E) immiserizing trade.
Answer: A
Page Ref: 173-178
Difficulty: Easy
13) We often observe "pseudo-intra-industry trade" between the United States and Mexico. Actually, such trade is consistent with
A) comparative advantage associated with Heckscher-Ohlin model.
B) oligopolistic markets.
C) optimal tariff issues.
D) the Ricardian model of trade.
E) the specific factors model of trade.
Answer: A
Page Ref: 173-178
Difficulty: Easy
14) Intra-industry trade will tend to dominate trade flows when which of the following exists?
A) small differences between relative country factor availabilities
B) large differences between relative country factor availabilities
C) homogeneous products that cannot be differentiated
D) constant cost industries
E) uneven distribution of abundant resources between two countries
Answer: A
Page Ref: 173-178
Difficulty: Easy
15) Trade without serious income distribution effects is most likely to happen
A) in sophisticated manufactures trade between rich countries.
B) in simple manufactures trade between developing countries.
C) in sophisticated manufactures trade between rich and poor countries.
D) in agricultural trade between rich countries.
E) in labor-intensive industries like clothing.
Answer: A
Page Ref: 173-178
Difficulty: Moderate
16) Imagine scale economies were not only external to firms, but were also external to individual countries. That is, the larger the worldwide industry (regardless of where firms or plants are located), the cheaper would be the per-unit cost of production. Describe what world trade would look like in this case.
Answer: Presumably each country would specialize in some component of the final product. This would result in in a high volume of intra-industry trade.
Page Ref: 173-178
Difficulty: Difficult
17) Refer to above figure. The monopolist can export as much as it likes of its steel at the world price of $5/ton. How much steel will the monopolist sell, and at what price?
Answer: It would sell 10 million tons at $5/ton.
Page Ref: 173-178
Difficulty: Moderate
18) Refer to above figure. Given the opportunity to sell at world prices, the marginal (opportunity) cost of selling a ton domestically is what?
Answer: $5/ton.
Page Ref: 173-178
Difficulty: Easy
19) Refer to above figure. While selling exports it would also maximize its domestic sales by equating its marginal (opportunity) cost to its marginal revenue of $5. How much steel would the firm sell domestically, and at what price?
Answer: 4 million tons at $10/ton.
Page Ref: 173-178
Difficulty: Easy
20) If the market for products produced by firms in a monopolistically competitive industry becomes ________, then there will be ________ firms and each firm will produce ________ output and charge a ________ price.
A) smaller; fewer; less; higher
B) smaller; more; less; higher
C) smaller; more; less; lower
D) smaller; fewer; less; lower
E) smaller; fewer; more; higher
Answer: A
Page Ref: 173-178
Difficulty: Easy
21) In an industry where firms experience internal scale economies, the long-run cost of production will depend on
A) the size of the market.
B) the size of the labor force.
C) whether the country engages in intra-industry trade.
D) individual firms' fixed costs.
E) whether the country engages in inter-industry trade.
Answer: A
Page Ref: 177-178
Difficulty: Easy
8.3 Firm Responses to Trade: Winners, Losers, and Industry Performance
1) In the model of monopolistic competition, if firms have ________ average cost curves, then opening trade will ________ the total number of firms and ________ the average price.
A) downward sloping; decrease; decrease
B) downward sloping; decrease; increase
C) downward sloping; increase; decrease
D) upward sloping; decrease; increase