国际经济学英文版(第八版)章节练习第四章.doc

International Economics, 8e (Krugman) Chapter 4 Resources, Comparative Advantage, and Income Distribution   1) In the 2-factor, 2 good Heckscher-Ohlin model, an influx of workers from across the border would A) move the point of production along the production possibility curve. B) shift the production possibility curve outward, and increase the production of both goods. C) shift the production possibility curve outward and decrease the production of the labor-intensive product. D) shift the production possibility curve outward and decrease the production of the capital-intensive product. E) None of the above. Answer: D 2) In the 2-factor, 2 good Heckscher-Ohlin model, the two countries differ in A) tastes. B) military capabilities. C) size. D) relative availabilities of factors of production. E) labor productivities. Answer: D  3) The Heckscher-Ohlin model differs from the Ricardian model of Comparative Advantage in that the former A) has only two countries. B) has only two products. C) has two factors of production. D) has two production possibility frontiers (one for each country). E) None of the above. Answer: C 4) A good cannot be both land- and labor-intensive. Discuss. Answer: In a two good, two factor model, such as the original Heckscher-Ohlin framework, the factor intensities are relative intensities. Hence, the relevant statistic is either workers per acre (or acres per worker); or wage per rental unit (or rental per wage). In order to illustrate the logic of the statement above, let us assume that the production of a broom requires 4 workers and 1 acre. Also, let us assume that the production of one bushel of wheat requires 40 workers and 80 acres. In this case the acres per person required to produce a broom is one quarter, whereas to produce a bushel of wheat requires 2 acres per person. The wheat is therefore (relatively) land intensive, and the broom is (relative