国际经济学英文版(第八版)章节练习第四章.doc
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InternationalEconomics,8e(Krugman)
6
Chapter4
Resources,ComparativeAdvantage,andIncomeDistribution
1)
Inthe2-factor,2goodHeckscher-Ohlinmodel,aninfluxofworkersfromacrosstheborderwould
A)
movethepointofproductionalongtheproductionpossibilitycurve.
B)
shifttheproductionpossibilitycurveoutward,andincreasetheproductionofbothgoods.
C)
shifttheproductionpossibilitycurveoutwardanddecreasetheproductionofthelabor-intensiveproduct.
D)
shifttheproductionpossibilitycurveoutwardanddecreasetheproductionofthecapital-intensiveproduct.
E)
Noneoftheabove.
Answer:
D
2)
Inthe2-factor,2goodHeckscher-Ohlinmodel,thetwocountriesdifferin
A)
tastes.
B)
militarycapabilities.
C)
size.
D)
relativeavailabilitiesoffactorsofproduction.
E)
laborproductivities.
Answer:
D
3)
TheHeckscher-OhlinmodeldiffersfromtheRicardianmodelofComparativeAdvantageinthattheformer
A)
hasonlytwocountries.
B)
hasonlytwoproducts.
C)
hastwofactorsofproduction.
D)
hastwoproductionpossibilityfrontiers(oneforeachcountry).
E)
Noneoftheabove.
Answer:
C
4)
"Agoodcannotbebothland-andlabor-intensive."Discuss.
Answer:
Inatwogood,twofactormodel,suchastheoriginalHeckscher-Ohlinframework,thefactorintensitiesarerelativeintensities.Hence,therelevantstatisticiseitherworkersperacre(oracresperworker);orwageperrentalunit(orrentalperwage).Inordertoillustratethelogicofthestatementabove,letusassumethattheproductionofabroomrequires4workersand1acre.Also,letusassumethattheproductionofonebushelofwheatrequires40workersand80acres.Inthiscasetheacresperpersonrequiredtoproduceabroomisonequarter,whereastoproduceabushelofwheatrequires2acresperperson.Thewheatistherefore(relatively)landintensive,andthebroomis(relatively)laborintensive.
5)
"Nocountryisabundantineverything."Discuss.
Answer:
Theconceptofrelative(country)factorabundanceis(likefactorintensities)arelativeconcept.Whenweidentifyacountryasbeingcapitalintensive,wemeanthatithasmorecapitalperworkerthandoestheothercountry.Ifonecountryhasmorecapitalworkerthananother,itisanarithmeticimpossibilitythatitalsohasmoreworkersperunitcapital.
6)
Refertoabovefigure.CanyouguesswhichgroupofproducersinCountryPmightlobbyagainstfreetrade?
Answer:
InCountryP,theownersoftherelativelyscarcefactorofproductionaretheownersofcapital.Theirrelativeandrealincomeswilldecrease,andsotheymaywellattempttolobbyforprotectionism,whichmaypreventthecountryfrommovingtoafreetradeequilibrium.
AnEconomycanproducegood1usinglaborandcapitalandgood2usinglaborandland.Thetotalsupplyoflaboris100units.Giventhesupplyofcapital,theoutputsofthetwogoodsdependsonlaborinputasfollows:
7)
Refertothetableabove.
(a) Graphtheproductionfunctionsforgood1andgood2
(b) Graphtheproductionpossibilityfrontier.Whyisitcurved?
Answer:
Theproductionpossibilityfrontieriscurvedbecauseofthediminishingreturnsassociatedwiththeexpansionofoutputintheshortrunineachofthetwoindustries.
8)
Inthe2-factor,2goodHeckscher-Ohlinmodel,achangefromautarky(notrade)totradewillbenefittheownersof
A)
capital.
B)
therelativelyabundantfactorofproduction.
C)
therelativelyscarcefactorofproduction.
D)
therelativelyinelasticfactorofproduction.
E)
thefactorofproductionwiththelargestelasticityofsubstitution.
Answer:
B
9)
AccordingtotheHeckscher-Ohlinmodel,thesourceofcomparativeadvantageisacountry's
A)
technology.
B)
advertising.
C)
humancapital.
D)
factorendowments.
E)
BothAandB.
Answer:
D
10)
TheHechscher-Ohlinmodelstatesthatacountrywillhaveacomparativeadvantageinthegoodorservicewhoseproductionisrelativelyintensiveinthe________withwhichthecountryisrelativelyabundant.
A)
tastes
B)
technology
C)
factorofproduction
D)
opportunitycost
E)
scaleeconomy
Answer:
C
11)
AccordingtotheHecksher-Ohlinmodel,
A)
everyoneautomaticallygainsfromtrade.
B)
thescarcefactornecessarilygainsfromtrade.
C)
thegainerscouldcompensatethelosersandstillretaingains.
D)
acountrygainsifitsexportshaveahighvalueadded.
E)
Noneoftheabove.
Answer:
C
Assumethatonlytwocountries,AandB,exist.
12)
Refertothetableabove.IfgoodSiscapitalintensive,thenfollowingtheHeckscher-OhlinTheory,
A)
countryAwillexportgoodS.
B)
countryBwillexportgoodS.
C)
bothcountrieswillexportgoodS.
D)
tradewillnotoccurbetweenthesetwocountries.
E)
Insufficientinformationisgiven.
Answer:
B
13)
Ininternational-tradeequilibriumintheHeckscher-Ohlinmodel,
A)
thecapitalrichcountrywillchargelessforthecapitalintensivegoodthanthepricepaidbythecapitalpoorcountryforthecapital-intensivegood.
B)
thecapitalrichcountrywillchargethesamepriceforthecapitalintensivegoodasthatpaidforitbythecapitalpoorcountry.
C)
thecapitalrichcountrywillchargemoreforthecapitalintensivegoodthanthepricepaidbythecapitalpoorcountryforthecapital-intensivegood.
D)
theworkersinthecapitalrichcountrywillearnmorethanthoseinthepoorcountry.
E)
theworkersinthecapitalrichcountrywillearnlessthanthoseinthepoorcountry.
Answer:
B
14)
TheHeckscher-Ohlinmodelpredictsallofthefollowingexcept
A)
whichcountrywillexportwhichproduct.
B)
whichfactorofproductionwithineachcountrywillgainfromtrade.
C)
thevolumeoftrade.
D)
thatwageswilltendtobecomeequalinbothtradingcountries.
E)
Noneoftheabove.
Answe:
C
15)
IfAustraliahasrelativelymorelandperworker,andBelgiumhasrelativelymorecapitalperworker,theniftradeweretoopenupbetweenthesetwocountries,
A)
therelativepriceofthecapital-intensiveproductwouldriseinAustralia.
B)
theworldpriceoftheland-intensiveproductwouldbehigherthanithadbeeninBelgium.
C)
theworldpriceofthelandintensiveproductwouldbehigherthanithadbeeninAustralia.
D)
therelativepriceofthelandintensiveproductwouldriseinBelgium.
E)
Noneoftheabove.
Answer:
C
16)
IfAustraliahasmorelandperworker,andBelgiumhasmorecapitalperworker,theniftradeweretoopenupbetweenthesetwocountries,
A)
therealincomeofcapitalownersinAustraliawouldrise.
B)
therealincomeoflaborinAustraliawouldclearlyrise.
C)
therealincomeoflaborinBelgiumwouldclearlyrise.
D)
therealincomeoflandownersinBelgiumwouldfall.
E)
therealincomesofcapitalownersinbothcountrieswouldrise.
Answer:
D
17)
Thereasontradeclearlybenefitsacountryisthat
A)
itraisestherealincomeofthemoreproductiveelementsinsociety.
B)
itlowerstherealincomeofthelessproductiveelementsinsociety.
C)
itincreasesthelevelsofconsumptionofeveryone.
D)
itincreasessociety'sconsumptionchoices.
E)
Noneoftheabove.
Answer:
D
18)
Internationaltradeleadstocompleteequalizationoffactorprices.Discuss.
Answer:
Thisstatementistypically"true...but."Underastrictandlimitedsetofassumptions,suchastheoriginalHeckscher-Ohlinmodelwhichexcludescountryspecifictechnologies;non-homothetictastes;factorintensityreversals;largecountrydifferencesin(relative)factorabundances,morefactorsthangoods,andanequilibriumsolutionwithinthe"coneofspecialization";thenitmaybedemonstratedthatinternalconsistencydemandsthattheabovestatedsentenceis"true."However,theminuteonerelaxesanyoftheabovelistedassumptionsonemayeasilyidentifysolutions,whichcontradictthefactorpriceequalizationtheorem.
19)
Startingfromanautarky(no-trade)situationwithHeckscher-Ohlinmodel,ifCountryHisrelativelylaborabundant,thenoncetradebegins
A)
wagesandrentsshouldriseinH.
B)
wagesandrentsshouldfallinH.
C)
wagesshouldriseandrentsshouldfallinH.
D)
wagesshouldfallandrentsshouldriseinH.
E)
Noneoftheabove.
Answer:
C
20)
AccordingtotheHeckscher-Ohlinmodel,iftheUnitedStatesisrichlyendowedinhuman-capitalrelativetoMexico,thenasNAFTAincreasinglyleadstomorebilateralfreetradebetweenthetwocountries,
A)
theUnitedStateswillfinditsindustrialbasesuckedintoMexico.
B)
MexicowillfinditsrelativelyhighlyskilledworkersdrawntotheUnitedStates.
C)
thewagesofhighlyskilledU.S.workerswillbedrawndowntoMexicanlevels.
D)
thewagesofhighlyskilledMexicanworkerswillrisetothoseintheUnitedStates.
E)
thewagesofhighlyskilledMexicanworkerswillfalltothoseintheUnitedStates.
Answer:
E
21)
Internationaltradehasstrongeffectsonincomedistributions.Therefore,internationaltrade
A)
isbeneficialtoeveryoneinbothtradingcountries.
B)
willtendtohurtonetradingcountry.
C)
willtendtohurtsomegroupsineachtradingcountry.
D)
willtendtohur