【正文】 14. The imposition of an optimum tariff by a large nation:A. improves its terms of tradeB. reduces the volume of tradeC. increases the nation39。s terms of tradeB. reduces the volume of tradeC. may increase or reduce the nation39。s offer curve away from the axis measuring the modity of its parative advantages offer curve toward the axis measuring the modity of its parative advantageC. the other nation39。12. The imposition of an import tariff by a nation can be represented by a rotation of the:*A. nation39。s abundant factor*D. all of the aboves import modityB. an increase in the nation39。11. The imposition of an import tariff by a nation results in:A. ans scarce factorC. reduces the real return of the nation39。10. According to the StolperSamuelson theorem, the imposition of a tariff by a nation:A. increases the real return of the nation39。s welfareC. leaves the nation39。9. The imposition of an import tariff by a small nation:A. increases the nation39。7. With ai=50%, ti=0, and t=20%, g is:*A. 40%B. 20%C. 80%D. 0is smaller than, is equal to or is larger than t*D. when aiti5. If a small nation increases the tariff on its import modity:*A. the rent of domestic producers of the modity increasesB. the protection cost of the tariff decreasesC. the deadweight loss decreasesD. all of the above3. If a small nation increases the tariff on its import modity, its:A. consumption of the modity increasesB. production of the modity decreasesC. imports of the modity increase*D. none of the above15. An increase in tastes of the import modity of Nation A and export in B:*A. will reduce the terms of trade of Nation AB. will increase the terms of trade of Nation AC. will reduce the terms of trade of Nation BD. any of the aboves terms of tradeC. reduces the volume of trade*D. all of the above13. Doubling K with trade in a large Labundant nation:A. increases the nation39。s welfareD. leaves the nation39。s welfareB. will reduce the nation39。12. Technical progress in the nation39。to result in a deterioration in the nation39。A proportionately greater increase in the nation39。s terms of trade can be expected to:*A. deteriorateB. improveC. remain unchangedD. any of the above s social welfareB. reduces the nation39。s social welfareB. reduces the nation39。7. A 50 percent productivity increase in the production of modity Y:A. increases the output of modity Y by 50 percentB. does not affect the output of XC. shifts the production frontier in the Y direction only*D. any of the above5. Doubling L is likely to:A. increases the relative price of the Lintensive modityB. reduces the relative price of the Kintensive modity*C. reduces the relative price of the Lintensive modityD. any of the above3. Doubling only the amount of L available under constant returns to scale:A. less than doubles the output of the Lintensive modity*B. more than doubles the output of the Lintensive modityC. doubles the output of the Kintensive modityD. leaves the output of the Kintensive modity unchangedMultipleChoice Questions1. Dynamic factors in trade theory refer to changes in:A. factor endowmentsB. technologyC. tastes*D. all of the above15. A footloose industry is one in which the product:A. gains weight in processingB. loses weight in processingC. both of the above*D. neither A nor B.13. Transport costs can be analyzed:A. with demand and supply curvesB. production frontiersC. offer curves*D. all of the above11. Which of the following statements is true with regard to the productcycle theory?A. It depends on differences in technological changes over time among countriesB. it depends on the opening and the closing of technological gaps among countriesC. it postulates that industrial countries export more advanced products to less advanced countries*D. all of the above10. Trade based on technological gaps is closely related to:A. the HO theory*B. the productcycle theoryC. Linder39。8. Intraindustry trade takes place:A. because products are homogeneous*B. in order to take advantage of economies of scaleC. because perfect petition is the prevalent form of market organizationD. all of the above6. The HeckscherOhlin and new trade theories explains most of the trade:A. among industrial countriesB. between developed and developing countriesC. in industrial goods*D. all of the aboveInternational trade can be based on economies of scale even if both nations have identical:A. factor endowmentsB. tastesC. technology*D. all of the above require new trade theories?Which of the following assumptions of the HeckscherOhlin theory, when relaxed,思考題：HO理論有哪些假設(shè)？各假設(shè)的含義是什么？為什么要做出這些假設(shè)？如何檢驗(yàn)HO理論的正確性？HOS定理的假設(shè)條件又是什么？他與生產(chǎn)要素國(guó)際間的流動(dòng)有何關(guān)系？如何檢驗(yàn)HOS定理在現(xiàn)實(shí)中的可靠性？Chapter 6: Economies of Scale, Imperfect Competition, and International TradeMultipleChoice Questions:1. Relaxing the assumptions on which the HeckscherOhlin theory rests:A. leads to rejection of the theoryB. leaves the theory unaffected*C. requires plementary trade theoriesD. any of the above.14. From empirical studies, we conclude that the HO theory:A. must be rejectedB. must be accepted without reservations*C. can be accepted while awaiting further testingD. explains all international trade because it deals with:A. two nationsB. two moditiesC. two factors of production*D. all of the above12. The HO model is a simplification of the a truly general equilibrium model10. According to the HO model, international trade will:A. reduce international differences in per capita inesB. increases international differences in per capita ines*C. may increase or reduce international differences in per capita inesD. lead to plete specialization5. When w/r fall