国际经济学作业答案第六章Word文档下载推荐.docx

1、（c） rises as the average firm grows larger.（d） falls as the average firm grows larger. D3. External economies of scale（a） may be associated with a perfectly competitive industry.（b） cannot be associated with a perfectly competitive industry.（c） tends to result in one huge monopoly.（d） tends to resul

2、t in large profits for each firm. A4. Internal economies of scale（c） are associated only with sophisticated products such as aircraft.（d） cannot form the basis for international trade.5. A monopolistic firm（a） can sell as much as it wants for any price it determines in the market.（b） cannot determin

3、e the price, which is determined by consumer demand.（c） will never sell a product whose demand is inelastic at the quantity sold.（d） cannot sell additional quantity unless it raises the price on each unit. C6. Monopolistic competition is associated with（a） cut-throat price competition.（b） product di

4、fferentiation.（c） explicit consideration at firm level of the feedback effects of other firms pricing decisions.（d） high profit margins.7. The most common market structure is（a） perfect competition.（b） monopolistic competition.（c） small-group oligopoly.（d） perfectly vertical integration.8. Modeling

5、trade in monopolistic industries is problematic because（a） there is no one generally accepted model of oligopoly behavior.（b） there are no models of oligopoly behavior.（c） it is difficult to find an oligopoly in the real world.（d） collusion among oligopolists makes usable data rare.9. Where there ar

6、e economies of scale, the scale of production possible in a country is constrained by（a） the size of the country.（b） the size of the trading partners country.（c） the size of the domestic market.（d） the size of the domestic plus the foreign market.10. Where there are economies of scale, an increase i

7、n the size of the market will（a） increase the number of firms and raise the price per unit.（b） decrease the number of firms and raise the price per unit.（c） increase the number of firms and lower the price per unit.（d） decrease the number of firms and lower the price per unit.11. The simultaneous ex

8、port and import of widgets by the United States is an example of（a） increasing returns to scale.（b） imperfect competition.（c） intra-industry trade.（d） inter-industry trade.12. If output more than doubles when all inputs are doubled, production is said to occur under conditions of13. Intra-industry t

9、rade can be explained in part by（a） transportation costs within and between countries.（b） problems of data aggregation and categorization.（c） increasing returns to scale.（d） All of the above.14. If some industries exhibit internal （firm specific） increasing returns to scale in each country, we shoul

10、d not expect to see（a） intra-industry trade between countries.（b） perfect competition in these industries.（c） inter-industry trade between countries.（d） high levels of specialization in both countries.15. Intra-industry trade is most common in the trade patterns of（a） developing countries of Asia an

11、d Africa.（b） industrial countries of Western Europe.（c） all countries.（d） North-South trade.16. International trade based on scale economies is likely to be associated with（a） Ricardian comparative advantage.（b） comparative advantage associated with Heckscher-Ohlin factor-proportions.（c） comparative

12、 advantage based on quality and service.（d） comparative advantage based on diminishing returns. E17. International trade based on external scale economies in both countries is likely to be carried outby a（a） relatively large number of price competing firms.（b） relatively small number of price compet

13、ing firms.（c） relatively small number of competing oligopolists.（d） monopoly firms in each country/industry.18. International trade based solely on internal scale economies in both countries is likely to be carried out by a19. A monopoly firm engaged in international trade will（a） equate average to

14、local costs.（b） equate marginal costs with foreign marginal revenues.（c） equate marginal costs with the highest price the market will bear.（d） equate marginal costs with marginal revenues in both domestic and in foreign markets.20. A monopoly firm will maximize profits by（a） charging the same price

15、in domestic and in foreign markets.（b） producing where the marginal revenue is higher in foreign markets.（c） producing where the marginal revenue is higher in the domestic market.（d） equating the marginal revenues in domestic and foreign markets.21. A firm in monopolistic competition（a） earns positi

16、ve monopoly profits because each sells a differentiated product.（b） earns positive oligopoly profits because each firm sells a differentiated product.（c） earns zero economic profits because it is in perfectly or pure competition.（d） earns zero economic profits because of free entry.22. The larger th

17、e number of firms in a monopolistic competition situation,（a） the larger are that countrys exports.（b） the higher is the price charged.（c） the fewer varieties are sold.（d） the lower is the price charged.23. The monopolistic competition model is one in which there is/are（a） a monopoly.（b） perfect com

18、petition.（c） economies of scale.（d） government intervention in the market.24. In industries in which there are scale economies, the variety of goods that a country can produce is constrained by（a） the size of the labor force.（b） anti-trust legislation.（c） the size of the market.（d） the fixed cost.25

19、. 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 countrys industry, then（a） consumers in both countries would suffer higher prices and fewer varieties.（b） consumers in the impor

20、ting country would suffer higher prices and fewer varieties.（c） consumers in the exporting country would suffer higher prices and fewer varieties.（d） consumers in both countries would enjoy fewer varieties available but lower prices.26. An industry is characterized by scale economies and exists in t

21、wo countries. In order for consumers of its products to enjoy both lower prices and more variety of choice,（a） each countrys marginal cost must equal that of the other country.（b） the marginal cost of this industry must equal marginal revenue in the other.（c） the monopoly must lower prices in order

22、to sell more.（d） the two countries must engage in international trade one with the other.27. 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 one with the other, then we would expe

23、ct（a） the country in which the price of the product is lower will export the product.（b） the country with a relative abundance of the factor of production in which production of the product is intensive will export this product.（c） each of the countries will export different varieties of the product

24、 to the other.（d） neither country will export this product since there is no comparative advantage.28. The reason why one country may export a product which is produced with positive scale economies is（a） its labor productivity will tend to be higher.（b） it enjoys a relative abundance of the factor

25、intensely used in the products production.（c） its demand is biased in favor of the product.（d） its demand is biased against the product.29. Two countries engaged in trade in products with no scale economies, produced under conditions of perfect competition, are likely to be engaged in（a） monopolistic competition.（b） inter-industry trade.（d） Heckscher-Ohlin trade.30. Two countries engaged in trade in products with scale economies, produced under conditions of monopolistic competition, are likely to be engaged in（a