《国际贸易》芬斯特拉版人大版练习题答案03资料下载.pdf
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《国际贸易》芬斯特拉版人大版练习题答案03资料下载.pdf
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S-193U1U2ABCOutputofmanufacturing,QMOutputofagriculture,QAAsseeninthepreviousdiagram,afallintherelativepriceofmanufacturesisshownbythesmallerslope(inabsolutevalue)oftheinternationalpriceline.ThecountryproducesatpointB,atwhichtheinternationalpricelineintersectsitsPPF.Thehigherrelativepriceofagricultureattractsworkersintothatsectorsuchthattheoutputofagricultureincreasesandtheoutputofmanufacturedgoodsdecreases.Nowthehighestlevelofutilityisachievedwherethehighestpossibleindifferencecurveintersectswiththenewpriceline(atC).Theincreaseinutilitysignifiedbythehigherindifferencecurveisameasureofgainsfromtrade.b.Whichgoodisexportedandwhichisimported?
Thedecreaseintherelativepriceofmanufacturesinthetradeequilib-rium(comparedwithautarky)alsomeansthatthecountryisimportingmanu-facturedgoodsandexportingagriculturalgoods.c.Explainwhytheoverallgainsfromtradearestillpositive.Answer:
Overallgainsfromtradearestillpositivebecausethecountryisabletosellagricultureatahigherpriceandbuymanufacturedgoodsatalowerpricethanitcouldhaveinautarky.Thefactthattherelativeprice(ofmanufacturedgoods)fellwithtradeindicatesthattheforeigncountrysautarkyrelativepricewaslower.Thatis,inthiscasethecountryhasacomparativeadvantageinagri-culture.InFigure3-4,thecaseillustratedisoneinwhichthecountryhasacom-parativeadvantageinmanufacturinggoodsandthustheirexportleadstoanin-creaseintheirrelativeprice.4.Startingfromequilibriuminthespecific-factorsmodel,supposethepriceofmanu-facturedgoodsfallssothatwagesfallfromW?
toWinFigure3-5.a.Showthatthepercentagefallinwagesislessthanthepercentagefallinthepriceofmanufacturing,sothattherealwageoflaborintermsofmanufacturedgoodsgoesup.Answer:
Asseeninthediagram,boththepriceofmanufacturedgoodsandthewagesde-crease.Thekeytothisexerciseistorealizethattheverticaldistanceofthede-creaseinwageislessthantheverticaldistanceof?
PM?
MPLM.Therefore:
?
MPLM?
WS-20SolutionsChapter3GainsandLossesfromTradeintheSpecific-FactorsModelWageWW?
PMMPLMPM?
MPLMPMMPL0MLM0ALALL?
L?
where?
Wrepresentsthechangeinwage.Dividingbothsidesbytheinitialwage(W?
MPLM):
PM/PM?
W/WThisisthedesiredresult:
thepercentagefallinthewageislessthanthepercent-agefallinthepriceofmanufacturing,sothattherealwageoflaborintermsofmanufacturedgoodsgoesup.b.Whathappenstotherealwageoflaborintermsofagriculture?
Becausethewagedecreasesandthepriceofagriculturalgoodsremainsthesame,theamountofagriculturalgoodsthatcanbeboughtbylaborde-creases.Thatis,realwagedecreasesintermsofagriculture.c.Areworkersbetteroff,worseoff,oristheoutcomeambiguous?
Becausetherealwageincreaseswithrespecttomanufacturedgoodsanddecreaseswithrespecttoagriculture,theoutcomewillbeambiguousforworkers.Forsome,whoprefertopurchasealotofagriculture,thepricechangemeansanoveralllossintermsofhowmuchtheycanbuy.Others,whoprefertobuymainlymanufacturedgoods,gainintermsofhowmuchtheycanbuy.5.Usethefollowinginformationtoanswerthequestionsbelow:
Manufacturing:
Salesrevenue?
QM?
150Paymentstolabor?
W?
LM?
100Paymentstocapital?
RK?
K?
50Agriculture:
PA?
QA?
LA?
50Paymentstoland?
RT?
T?
100Holdingthepriceofmanufacturingconstant,supposetheincreaseinthepriceofagricultureis10%andtheincreaseinthewageis5%.a.Determinetheimpactoftheincreaseinthepriceofagricultureontherentalonlandandtherentaloncapital.Answer:
Rentalonlandcanbecalculatedasfollows:
RR_TT?
12.5%Recallingthatthepriceofmanufacturingremainedconstant,wegettherentaloncapitalas?
0?
RRKK?
_?
WW?
WRK?
LKM?
5%?
15000?
10%.(?
PA/PA)?
(?
W/W)?
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