国际经济学作业答案-第三章.doc

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国际经济学作业答案-第三章.doc

Chapter3LaborProductivityandComparativeAdvantage—TheRicardianModel31

Chapter3LaborProductivityandComparativeAdvantage—TheRicardianModel

nMultipleChoiceQuestions

1. Countriestradewitheachotherbecausetheyare_______andbecauseof______.

(a) different,costs

(b) similar,scaleeconomies

(c) different,scaleeconomies

(d) similar,costs

(e) Noneoftheabove.

Answer:

C

2. Tradebetweentwocountriescanbenefitbothcountriesif

(a) eachcountryexportsthatgoodinwhichithasacomparativeadvantage.

(b) eachcountryenjoyssuperiortermsoftrade.

(c) eachcountryhasamoreelasticdemandfortheimportedgoods.

(d) eachcountryhasamoreelasticsupplyforthesuppliedgoods.

(e) Both(c)and(d).

Answer:

A

3. TheRicardiantheoryofcomparativeadvantagestatesthatacountryhasacomparativeadvantage

inwidgetsif

(a) outputperworkerofwidgetsishigherinthatcountry.

(b) thatcountry’sexchangerateislow.

(c) wageratesinthatcountryarehigh.

(d) theoutputperworkerofwidgetsascomparedtotheoutputofsomeotherproductishigherinthatcountry.

(e) Both(b)and(c).

Answer:

D

4. Inordertoknowwhetheracountryhasacomparativeadvantageintheproductionofoneparticularproductweneedinformationonatleast____unitlaborrequirements

(a) one

(b) two

(c) three

(d) four

(e) five

Answer:

D

5. Acountryengagingintradeaccordingtotheprinciplesofcomparativeadvantagegainsfromtradebecauseit

(a) isproducingexportsindirectlymoreefficientlythanitcouldalternatively.

(b) isproducingimportsindirectlymoreefficientlythanitcoulddomestically.

(c) isproducingexportsusingfewerlaborunits.

(d) isproducingimportsindirectlyusingfewerlaborunits.

(e) Noneoftheabove.

Answer:

B

6. Giventhefollowinginformation:

UnitLaborRequirements

Cloth

Widgets

Home

10

20

Foreign

60

30

(a) Neithercountryhasacomparativeadvantage.

(b) Homehasacomparativeadvantageincloth.

(c) Foreignhasacomparativeadvantageincloth.

(d) Homehasacomparativeadvantageinwidgets.

(e) Homehasacomparativeadvantageinbothproducts.

Answer:

B

7. IfitisascertainedthatForeignusesprison-slavelabortoproduceitsexports,thenhomeshould

(a) exportcloth.

(b) exportwidgets.

(c) exportbothandimportnothing.

(d) exportandimportnothing.

(e) Alloftheabove.

Answer:

A

8. IftheHomeeconomysufferedameltdown,andtheUnitLaborRequirementsineachoftheproductsquadrupled(thatis,doubledto30forclothand60forwidgets)thenhomeshould

(a) exportcloth.

(b) exportwidgets.

(c) exportbothandimportnothing.

(d) exportandimportnothing.

(e) Alloftheabove.

Answer:

A

9. IfwagesweretodoubleinHome,thenHomeshould:

(a) exportcloth.

(b) exportwidgets.

(c) exportbothandimportnothing.

(d) exportandimportnothing.

(e) Alloftheabove.

Answer:

A

10. Iftheworldequilibriumpriceofwidgetswere4Cloths,then

(a) bothcountriescouldbenefitfromtradewitheachother.

(b) neithercountrycouldbenefitfromtradewitheachother.

(c) eachcountrywillwanttoexportthegoodinwhichitenjoyscomparativeadvantage.

(d) neithercountrywillwanttoexportthegoodinwhichitenjoyscomparativeadvantage.

(e) bothcountrieswillwanttospecializeincloth.

Answer:

A

11. Giventhefollowinginformation:

NumberofUnitsProducedbyoneUnitofLabor

Cloth

Widgets

Home

10

20

Foreign

60

30

(a) Neithercountryhasacomparativeadvantage.

(b) Homehasacomparativeadvantageincloth.

(c) Foreignhasacomparativeadvantageincloth.

(d) Foreignhasacomparativeadvantageinwidgets.

(e) Homehasacomparativeadvantageinbothproducts.

Answer:

C

12. TheopportunitycostofclothintermsofwidgetsinForeignisifitisascertainedthatForeignusesprison-slavelabortoproduceitsexports,thenhomeshould

(a) exportcloth.

(b) exportwidgets.

(c) exportbothandimportnothing.

(d) exportandimportnothing.

(e) Alloftheabove.

Answer:

B

13. IfwagesweretodoubleinHome,thenHomeshould

(a) exportcloth.

(b) exportwidgets.

(c) exportbothandimportnothing.

(d) exportandimportnothing.

(e) Alloftheabove.

Answer:

B

14. Iftheworldequilibriumpriceofwidgetswere4Cloths,then

(a) bothcountriescouldbenefitfromtradewitheachother.

(b) neithercountrycouldbenefitfromtradewitheachother.

(c) eachcountrywillwanttoexportthegoodinwhichitenjoyscomparativeadvantage.

(d) neithercountrywillwanttoexportthegoodinwhichitenjoyscomparativeadvantage.

(e) bothcountrieswillwanttospecializeincloth.

Answer:

A

15. Iftheworldequilibriumpriceofwidgetswere40cloths,then

(a) bothcountriescouldbenefitfromtradewitheachother.

(b) neithercountrycouldbenefitfromtradewitheachother.

(c) eachcountrywillwanttoexport

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