国际经济学作业答案第六章.docx
《国际经济学作业答案第六章.docx》由会员分享,可在线阅读,更多相关《国际经济学作业答案第六章.docx(13页珍藏版)》请在冰豆网上搜索。
![国际经济学作业答案第六章.docx](https://file1.bdocx.com/fileroot1/2022-10/28/74a7a9fa-536c-4787-b21b-1729d1c3c0f2/74a7a9fa-536c-4787-b21b-1729d1c3c0f21.gif)
国际经济学作业答案第六章
Chapter6
EconomiesofScale,ImperfectCompetition,
andInternational
MultipleChoiceQuestions
1.Externaleconomiesofscalearisewhenthecostperunit
(a)risesastheindustrygrowslarger.
(b)fallsastheindustrygrowslargerrisesastheaveragefirmgrowslarger.
(c)fallsastheaveragefirmgrowslarger.
(d)remainsconstant.
(e)Noneoftheabove.
Answer:
B
2.Internaleconomiesofscalearisewhenthecostperunit
(a)risesastheindustrygrowslarger.
(b)fallsastheindustrygrowslarger.
(c)risesastheaveragefirmgrowslarger.
(d)fallsastheaveragefirmgrowslarger.
(e)Noneoftheabove.
Answer:
D
3.Externaleconomiesofscale
(a)maybeassociatedwithaperfectlycompetitiveindustry.
(b)cannotbeassociatedwithaperfectlycompetitiveindustry.
(c)tendstoresultinonehugemonopoly.
(d)tendstoresultinlargeprofitsforeachfirm.
(e)Noneoftheabove.
Answer:
A
4.Internaleconomiesofscale
(a)maybeassociatedwithaperfectlycompetitiveindustry.
(b)cannotbeassociatedwithaperfectlycompetitiveindustry.
(c)areassociatedonlywithsophisticatedproductssuchasaircraft.
(d)cannotformthebasisforinternationaltrade.
(e)Noneoftheabove.
Answer:
B
5.Amonopolisticfirm
(a)cansellasmuchasitwantsforanypriceitdeterminesinthemarket.
(b)cannotdeterminetheprice,whichisdeterminedbyconsumerdemand.
(c)willneversellaproductwhosedemandisinelasticatthequantitysold.
(d)cannotselladditionalquantityunlessitraisesthepriceoneachunit.
(e)Noneoftheabove.
Answer:
C
6.Monopolisticcompetitionisassociatedwith
(a)cut-throatpricecompetition.
(b)productdifferentiation.
(c)explicitconsiderationatfirmlevelofthefeedbackeffectsofotherfirmsricingdecisions.'p
(d)highprofitmargins.
(e)Noneoftheabove.
Answer:
B
7.Themostcommonmarketstructureis
(a)perfectcompetition.
(b)monopolisticcompetition.
(c)small-groupoligopoly.
(d)perfectlyverticalintegration.
(e)Noneoftheabove.
Answer:
C
8.Modelingtradeinmonopolisticindustriesisproblematicbecause
(a)thereisnoonegenerallyacceptedmodelofoligopolybehavior.
(b)therearenomodelsofoligopolybehavior.
(c)itisdifficulttofindanoligopolyintherealworld.
(d)collusionamongoligopolistsmakesusabledatarare.
(e)Noneoftheabove.
Answer:
A
9.Wherethereareeconomiesofscale,thescaleofproductionpossibleinacountryisconstrainedby
(a)thesizeofthecountry.
(b)thesizeofthetradingpartnercountry.'s
(c)thesizeofthedomesticmarket.
(d)thesizeofthedomesticplustheforeignmarket.
(e)Noneoftheabove.
Answer:
D
10.Wherethereareeconomiesofscale,anincreaseinthesizeofthemarketwill
(a)increasethenumberoffirmsandraisethepriceperunit.
(b)decreasethenumberoffirmsandraisethepriceperunit.
(c)increasethenumberoffirmsandlowerthepriceperunit.
(d)decreasethenumberoffirmsandlowerthepriceperunit.
(e)Noneoftheabove.Answer:
C
11.ThesimultaneousexportandimportofwidgetsbytheUnitedStatesisanexampleof
(a)increasingreturnstoscale.
(b)imperfectcompetition.
(c)intra-industrytrade.
(d)inter-industrytrade.
(e)Noneoftheabove.
Answer:
C
12.Ifoutputmorethandoubleswhenallinputsaredoubled,productionissaidtooccurunderconditionsof
(a)increasingreturnstoscale.
(b)imperfectcompetition.
(c)intra-industrytrade.
(d)inter-industrytrade.
(e)Noneoftheabove.Answer:
A
13.Intra-industrytradecanbeexplainedinpartby
(a)transportationcostswithinandbetweencountries.
(b)problemsofdataaggregationandcategorization.
(c)increasingreturnstoscale.
(d)Alloftheabove.
(e)Noneoftheabove.Answer:
D
14.Ifsomeindustriesexhibitinternal(firmspecific)increasingreturnstoscaleineachcountry,weshouldnotexpecttosee
(a)intra-industrytradebetweencountries.
(b)perfectcompetitionintheseindustries.
(c)inter-industrytradebetweencountries.
(d)highlevelsofspecializationinbothcountries.
(e)Noneoftheabove.
Answer:
B
15.Intra-industrytradeismostcommoninthetradepatternsof
(a)developingcountriesofAsiaandAfrica.
(b)industrialcountriesofWesternEurope.
(c)allcountries.
(d)North-Southtrade.
(e)Noneoftheabove.
Answer:
B
16.Internationaltradebasedonscaleeconomiesislikelytobeassociatedwith
(a)Ricardiancomparativeadvantage.
(b)comparativeadvantageassociatedwithHeckscher-Ohlinfactor-proportions.
(c)comparativeadvantagebasedonqualityandservice.
(d)comparativeadvantagebasedondiminishingreturns.
(e)Noneoftheabove.
Answer:
E
17.Internationaltradebasedonexternalscaleeconomiesinbothcountriesislikelytobecarriedoutbya
(a)relativelylargenumberofpricecompetingfirms.
(b)relativelysmallnumberofpricecompetingfirms.
(c)relativelysmallnu