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Chapter1窗体顶端 问题115分 保存 Thekeyassumptionunderlyingthetheoryofthefirmisthat:A.firmsareassumedtomaximizesalesrevenue.B.managersareassumedtomaximizethenumberofemployeesintheirdepartment.C.firmsareassumedtomaximizeprofits.D.noneoftheabove 问题135分 保存 Thetrade-offsfacingconsumersinclude:A.howtoallocateincomeacrossgoodsandserves.B.howtoallocateincomebetweenconsumptionandsavings.C.bothAandBD.noneoftheabove 问题165分 保存 Thepriceofatacowas$0.29in1970and$0.99in1993.TheCPIwas38.8in1970and144.0in1993.The1993priceofatacoin1970dollarsis:A.$0.08.B.$0.27. C.$0.34.D.$3.67. 问题175分 保存 Whichofthefollowingmarketshasthemostrestrictivegeographicboundary?地理界线A.ThemarketforretailgasolineB.ThemarketforhousingC.ThemarketforgoldD.Themarketforbeef 问题185分 保存 Whyismarketdefinitionimportantforeconomicdecisionmaking?A.Afirmisinterestedinknowingitsactualandpotentialcompetitors.B.Afirmwilldefineitsmarketinordertomaximizerevenue.C.Governmentregulatorsareinterestedinknowingtheeffectofmergersandacquisitionsoncompetitionandpricesinaparticularmarket.D.bothAandCE.bothAndB 问题195分 保存 WhatdoesitmeanwhentheCPIishigherthisyearthanlast?A.Therateofinflationhasincreased.B.Therehasbeeninflationsincelastyear.C.Realpriceshaveincreased. D.Realpriceshavedecreased.Chapter2窗体顶端 问题45分 保存 Coffeeandcream:A.arebothluxurygoods.B.arecomplements.C.arebothmoreinelasticindemandinthelongrunthanintheshortrun.D.haveapositivecrosspriceelasticityofdemand. 问题105分 保存 WhichofthefollowingwillNOTcauseashiftinthesupplyofgasoline?A.AnincreaseinthewagerateofrefineryworkersB.AdecreaseinthepriceofgasolineC.AnimprovementinoilrefiningD.technologyAdecreaseinthepriceofcrudeoil 问题135分 保存 WhichofthefollowingwillcausethedemandcurveforBeatlesʹcompactdiscstoshifttotheright?A.AnincreaseinthepriceofthediscsB.Adecreaseinconsumersʹincomes C.AnincreaseinthepriceofPhilCollins'latestcompactdisc(asubstitute)D.alloftheaboveE.noneoftheabove 问题145分 保存 WhichofthefollowingwillNOTcausearightwardshiftinthedemandcurveforbeer?A.AchangeinthepriceofbeerB.AhealthstudyindicatingpositivehealthbenefitsofmoderatebeerconsumptionC.AnincreaseinthepriceofFrenchwine(asubstitute)D.Adecreaseinthepriceofpotatochips(acomplement)E.noneoftheabove窗体底端Chapter3窗体顶端 问题15分 保存 GaryFranklinisamoviecritic.HeinventedtheFranklinScalewithwhichheratesmoviesfrom1to10(10beingbest).Whenaskedabouthisscale,Mr.Franklinexplained"thatitisasubjectivemeasureofmoviequality.Amoviewitharankingof10isnotnecessarily10timesbetterthanamoviewitharankingof1,butitisbetter.Amoviewitharankingof5isbetterthanamoviewitharankingof1,butisnotasgoodamoviewitharankingof10.That'sallitreallytellsyou."BasedonMr.Franklin'sdescription,hisscaleis:A)ordinalbutnotcardinal.B)cardinalbutnotordinal.C)anobjectivestandardtojudgemovies. D)neithercardinalnorordinal. 问题75分 保存 Ifamarketbasketischangedbyaddingmoreofatleastonegood,thenrationalconsumerswill:A)rankthemarketbasketmorehighlyafterthechange.B)morelikelypreferadifferentmarketbasket.C)rankthemarketbasketasbeingjustasdesirableasbefore.D)beunabletodecidewhetherthefirstmarketbasketispreferredtothesecondorviceversa.E)haveindifferencecurvesthatcross. 问题115分 保存 ZoeisanexecutiveatDellComputerCompanywhoisinchargeofdesigningthenextversionoflaptopcomputers.Shewillconsidersuchfeaturesasscreensize,weight,processorspeed,andCDandDVDdrives.Giventhefactthatitiscostlytoincludemorefeaturesinnewproducts,whymightZoebeinterestedindataonhowmuchconsumerspaidforarangeoflaptopswithdifferentattributes?A)inordertoestimatewillingnesstopayforeachfeature.B)inordertosetanoptimalpriceforthelaptops.C)inordertodeterminethebestfeaturestoinclude.D)inordertoestimatewillingnesstotradeoffonefeatureforanother.E)alloftheabove 问题125分 保存 Inwhatwayscaneconomistshelpautomanufacturersestimatethemarginalrateofsubstitutionbetweenfeaturessuchasvehicleinteriorsizeandacceleration? A)ExaminingproductioncostdataB)ConductingconsumersurveysaboutwillingnesstopayforautofeaturesC)Solvingthestandardconsumermodel D)StatisticallyanalyzinghistoricaldataonpurchasesofdifferenttypesofautosE)BandDonly 问题145分 保存 Supposethatamarketbasketoftwogoodsischangedbyaddingmoreofoneofthegoodsandsubtractingoneunitoftheother.Theconsumerwill:A)rankthemarketbasketmorehighlyafterthechange.B)rankthemarketbasketmorehighlybeforethechange.C)rankthemarketbasketjustasdesirableasbefore.D)anyoneoftheabovestatementsmaybetrue. 问题165分 保存 Whichofthefollowingistrueabouttheindifferencecurvewhereonecommodity(suchaspollution)is"bad"?A)Ithasanegativeslope..B)Ithasapositiveslope.C)Itishorizontal.D)Itisvertical 问题185分 保存 Envisionagraphwithmeatonthehorizontalaxisandvegetablesontheverticalaxis.Astrictvegetarianwouldhaveindifferencecurvesthatare: A)verticallines.B)horizontallines.C)diagonalstraightlines.D)rightangles. E)upwardsloping. 问题205分 保存 Janeistryingtodecidewhichcoursestotakenextsemester.Shehasnarroweddownherchoicetotwocourses,Econ1andEcon2.Nowsheishavingtroubleandcannotdecidewhichofthetwocoursestotake.It'snotthatsheisindifferentbetweenthetwocourses,shejustcannotdecide.Aneconomistwouldsaythatthisisanexampleofpreferencesthat:A)arenottransitive.B)areincomplete.C)violatetheassumptionthatmoreispreferredtoless.D)alloftheaboveChapter4窗体顶端 问题25分 保存 Thechangeinthepriceofonegoodhasnoeffectonthequantitydemandedofanothergood.Thesegoodsare:A)complements.B)substitutes.C)bothinferior.D)bothGiffengoods. E)noneoftheabove 问题45分 保存 Anindividualdemandcurvecanbederivedfromthe______curve.A)price-consumptionB)price-incomeC)income-substitutionD)income-consumptionE)Engel 问题55分 保存 Whichofthefollowingclaimsistrueateachpointalongaprice-consumptioncurve?A)Utilityismaximizedbutincomeisnotallspent.B)Allincomeisspent,bututilityisnotmaximized.C)Utilityismaximized,andallincomeisspent.D)Thelevelofutilityisconstant. 问题65分 保存 Whichofthefollowingistrueregardingincomealongaprice-consumptioncurve?A)Incomeisincreasing.B)Incomeisdecreasing.C)Incomeisconstant.D)Thelevelofincomedependsonthelevelofutility. 问题75分 保存 Whichofthefollowingistrueregardingutilityalongaprice-consumptioncurve?A)Itisconstant.B)Itchangesfrompointtopoint.C)Itchangesonlyifincomechanges.D)Itchangesonlyfornormalgoods. 问题85分 保存 Theincome-consumptioncurveA)illustratesthecombinationsofincomesneededwithvariouslevelsofconsumptionofagood.B)isanothernameforincome-demandcurve.C)illustratestheutility-maximizingcombinationsofgoodsassociatedwitheveryincomelevel.D)showstheutility-maximizingquantityofsomegood(onthehorizontalaxis)asafunctionofincome(ontheverticalaxis). 问题105分 保存 Whichofthefollowinggoodshasalow,butpositive,incomeelasticityofdemand?A)furniture.B)newcars.C)healthinsurance.D)alloftheaboveE)noneoftheabove 问题115分 保存 IfanEngelcurvehasapositiveslope A)bothgoodsarenormal.B)thegoodonthehorizontalaxisisnormalC)asthepriceofthegoodonthehorizontalaxisincreases,moreofbothgoodsinconsumed.D)asthepriceofthegoodontheverticalaxisincreases,moreofthegoodonthehorizontalaxisisconsumed. 问题135分 保存 Whentheincome-consumptioncurvehasapositiveslopethroughoutitsentirelength,wecanconcludethatA)bothgoodsareinferior.B)bothgoodsarenormal.C)thegoodonthevertical(y)axisisinferior.D)thegoodonthehorizontal(x)axisisinferior 问题145分 保存 ConsidertwogoodsXandYavailableforconsumption.AssumethatthepriceofXchangeswhilethepriceofYremainsfixed.Forthesetwogoods,theprice-consumptioncurveillustratestheA)relationshipbetweenthepriceofXandconsumptionofY.B)utility-maximizingcombinationsofXandYforeachpriceofX.C)relationshipbetweenthepriceofYandtheconsumptionofX.D)utility-maximizingcombinationsofXandYforeachquantityofX. 问题155分 保存 ConsideragraphonwhichonegoodYisontheverticalaxisandtheonlyothergoodXisonthehorizontalaxis.Onthisgraphtheincome-consumptioncurvehasapositiveslopeforlowincomes,thenittakesazeroslopeforahigherincome, andthenittakesanegativeslopeforevenhigherincomes(thecurvelookslikeanarc,firstrisingandthenfallingasincomeincreases).Thiscurveillustratesthat,forallincomelevels,A)bothXandYarenormal.B)onlyYisnormal.C)bothXandYareinferior.D)onlyXisnormal. 问题165分 保存 AccordingtoasurveybytheU.S.BureauofLaborStatistics,whichofthefollowingstatementsaboutannualU.S.householdconsumerexpendituresisfalse?A)Theincomeelasticityofdemandforentertainmentispositive.B)Theincomeelasticityofdemandforowner-occupiedhousingispositive.C)Theincomeelasticityofdemandforrentalhousingispositive.D)Theincomeelasticityofdemandforhealthcareispositive.E)Averagefamilyexpendituresincreasewithincome. 问题185分 保存 Jon'sincome-consumptioncurveisastraightlinefromtheoriginwithapositiveslope.NowsupposethatJon'spreferenceschangesuchthathisincome-consumptioncurveremainsastraightlinebutrotates15degreesclockwise.Jon'sdemandcurveforthegoodonthehorizontalaxisA)willshiftleft.B)willshiftright.C)willnotchange. D)mightdoanyoftheabove. 问题195分 保存 Supposethataconsumerregardstwotypesofsoapasperfectsubstitutesforoneanother.ThepriceconsumptionpathgeneratedbychangingthepriceofonetypeofsoapA)isalwaysupwardsloping.B)isalwayshorizontal.C)isalwaysvertical.D)correspondswiththeaxisforthecheapersoap.E)correspondswiththeaxisforthemoreexpensivesoap. 问题205分 保存 Yourincomeresponseforbicycleridingchangeswiththeamountofincomeyouearn.Atlowlevelsofincome,youviewbicycleridingasaninferiorgoodandsubstituteothertypesoftransportation(e.g.,autotravel)asyourincomerises.However,youviewbicycleridingasanormalgoodafteryourincomerisesaboveaparticularlevel.WhatshapedoesyourEngelcurveforbicycleridinghave?A)VerticallineB)HorizontallineC)C-shapedD)UpwardslopingE)noneoftheaboveChapter6窗体顶端 问题15分 保存 Aproductionfunctiondefinestheoutputthatcanbeproduced A)atthelowestcost,giventheinputsavailable.B)fortheaveragefirm.C)ifthefirmistechnicallyefficient.D)inagiventimeperiodifnoadditionalinputsarehired.E)astechnologychangesovertime. 问题25分 保存 AproductionfunctionassumesagivenA)technology.B)setofinputprices.C)ratioofinputprices.D)amountofcapitalandlabor.E)amountofoutput. 问题105分 保存 ThelawofdiminishingreturnsreferstodiminishingA)totalreturns.B)marginalreturns.C)averagereturns.D)allofthese. 问题135分 保存 Whentheaverageproductisdecreasing,marginalproductA)equalsaverageproduct. B)isincreasing.C)exceedsaverageproduct.D)isdecreasing.E)islessthanaverageproduct. 问题155分 保存 WhichofthefollowingideaswerecentraltotheconclusionsdrawnbyThomasMalthusinhis1798"EssayonthePrincipleofPopulation"?A)Short-runtimeperiodB)ShortageoflaborC)LawofdiminishingresourceavailabilityD)Lawofdiminishingreturns 问题165分 保存 ThelawofdiminishingreturnsassumesthatA)thereisatleastonefixedinput.B)allinputsarechangedbythesamepercentage.C)additionalinputsareaddedinsmallerandsmallerincrements.D)allinputsareheldconstant. 问题175分 保存 AccordingtothelawofdiminishingreturnsA)thetotalproductofaninputwilleventuallybenegative.B)thetotalproductofaninputwilleventuallydecline.C)themarginalproductofaninputwilleventuallybenegative. D)themarginalproductofaninputwilleventuallydecline.E)noneoftheabove 问题185分 保存 Inacertaintextilefirm,laboristheonlyshorttermvariableinput.Themanagernoticesthatthemarginalproductoflaboristhesameforeachunitoflabor,whichimpliesthatA)theaverageproductoflaborisalwaysgreaterthatthemarginalproductoflaborB)theaverageproductoflaborisalwaysequaltothemarginalproductoflaborC)theaverageproductoflaborisalwayslessthanthemarginalproductoflaborD)asmorelaborisused,theaverageproductoflaborfallsE)thereisnounambiguousrelationshipbetweenlabor'smarginalandaverageproducts. 问题195分 保存 Atagivenleveloflaboremployment,knowingthedifferencebetweentheaverageproductoflaborandthemarginalproductoflabortellsyouA)whetherincreasinglaboruseraisesoutput.B)whetherincreasinglaborusechangesthemarginalproductoflabor.C)whethereconomiesofscaleexist.D)whetherthelawofdiminishingreturnsapplies.E)howincreasinglaborusealterstheaverageproductoflabor. 问题205分 保存 IfthelawofdiminishingreturnsappliestolaborthenA)themarginalproductoflabormusteventuallybecomenegative.B)theaverageproductoflabormusteventuallybecomenegative. C)themarginalproductoflabormustriseandthenfallasemploymentrises.D)theaverageproductoflabormustriseandthenfallasemploymentincreases.E)aftersomelevelofemployment,themarginalproductoflabormustfall.Chapter7窗体顶端 问题55分 保存 Constantinepurchased100sharesofIBMstockseveralyearsagofor$150pershare.Thepriceoftheseshareshasfallento$55pershare.Constantine'sinvestmentstrategyis"buylow,sellhigh."Therefore,hewillnotsellhisIBMstockuntilthepricerisesabove$150pershare.Ifhesellsatapricelowerthan$150persharehewillhave"boughthighandsoldlow."Constantine'sdecision:A)iscorrectandshowsasolidcommandofthenatureofopportunitycost.B)isincorrectbecausetheoriginalpricepaidforthesharesisasunkcostandshouldhavenobearingonwhetherthesharesshouldbeheldorsold.C)isincorrectbecausewhenthepriceofastockfalls,thelawofdemandstatesthatheshouldbuymoreshares.D)isincorrectbecauseittreatsthepriceofthesharesasanexplicitcost. 问题65分 保存 InorderforataxicabtobeoperatedinNewYorkCity,itmusthaveamedalliononitshood.Medallionsareexpensive,butcanberesold,andarethereforeanexampleof A)afixedcost.B)avariablecost.C)animplicitcost.D)anopportunitycost.E)asunkcost. 问题75分 保存 ProspectivesunkcostsA)arerelevanttoeconomicdecision-making.B)areconsideredasinvestmentdecisions.C)riseasoutputrises.D)donotoccurwhenoutputequalszero. 问题115分 保存 Whichofthefollowingcostsalwaysdeclinesasoutputincreases?A)AveragecostB)MarginalcostC)FixedcostD)AveragefixedcostE)Averagevariablecost 问题205分 保存 Foranygivenlevelofoutput:A)marginalcostmustbegreaterthanaveragecost. B)averagevariablecostmustbegreaterthanaveragefixedcost.C)averagefixedcostmustbegreaterthanaveragevariablecost.D)fixedcostmustbegreaterthanvariablecost.E)Noneoftheaboveisnecessarilycorrect.Chapter8 问题2得5分，满分5分 Ifmanagersdonotchoosetomaximizeprofit,butpursuesomeothergoalsuchasrevenuemaximizationorgrowth,正确答案： A)theyaremorelikelytobecometakeovertargetsofprofit-maximizingfirms. 问题7得5分，满分5分 Inmanyruralareas,electricgenerationanddistributionutilitieswereinitiallysetupascooperativesinwhichtheelectricitycustomersweremember-owners.Likemostcooperatives,theobjectiveofthesefirmswasto:正确答案： C)operateatzeroprofitinordertoprovidelowelectricitypricesforthemember-owners. 问题8得5分，满分5分 Anassociationofbusinessesthatarejointlyownedandoperatedbymembersformutualbenefitisa:正确答案： C)cooperative. Chapter10 问题10得5分，满分5分 Whenaperunittaxisimposedonthesaleofaproductofamonopolist,theresultingpriceincreasewill正确答案： D)notalwaysbelessthanthetax. 问题16得5分，满分5分 Amonopolisthasdeterminedthatatthecurrentlevelofoutputthepriceelasticityofdemandis-0.15.Whichofthefollowingstatementsistrue?正确答案： A)Thefirmshouldcutoutput. 问题17得5分，满分5分 Amonopolisthassetherlevelofoutputtomaximizeprofit.Thefirm'smarginalrevenueis$20,andthepriceelasticityofdemandis-2.0.Thefirm'sprofitmaximizingpriceisapproximately:正确答案： C)$40Chapter14 问题3得5分，满分5分 Otherthingsbeingequal,themarginalrevenueproduct(MRP)curveforacompetitiveseller正确答案： C)liesabovetheMRPcurveforamonopolist. 问题4得5分，满分5分 Whatcanaccountforthenegativeslopeofthemarginalrevenueproductcurve?正确答案： B)Diminishingmarginalreturns 问题5得5分，满分5分 Ifthemarketforlaborisperfectlycompetitive,theprofitmaximizingleveloflaboroccurswhere正确答案： D)MRPL=W. 问题6得5分，满分5分 Ifleisureisanormalgood,thentheincomeeffectofadecreaseinwagewill正确答案： B)increasethenumberofhoursworked. 问题7得5分，满分5分 Thesubstitutioneffectofadecreaseinthewagewill正确答案： B)increaseleisure,regardlessofwhetherleisureisanormalorinferiorgood. 问题9得5分，满分5分 Anincreaseintechnologythatenhanceslaborproductivitywilllikelyresultin:正确答案： B)anincreaseinlaboremploymentandanincreaseinthewagerate. 问题10得5分，满分5分 Whenthefactormarketispurelycompetitive,thefirmʹsaverageexpenditurecurveforafactorofproductionis正确答案： C)identicaltothemarginalexpenditurecurve. 问题11得5分，满分5分 Underwhatcircumstancesarethemarginalexpenditureforaninputandtheaverageexpenditurealwaysequal?Wherethereisa正确答案： A)competitivebuyer. 问题12得5分，满分5分 Afirmpurchasesafactorofproductioninacompetitivemarket.AtthecurrentpurchaseratetheMRPofthefactorisgreaterthanthemarginalexpenditureforthefactor.Thus,thefirm正确答案： D)canincreaseprofitbyexpandingtheemploymentofthefactorofproduction. 问题13得5分，满分5分 Assumethatasthewageraterisesaworker'ssubstitutioneffectforleisureislargerthantheincomeeffect.Wecanconcludethatinthis region,theworker's正确答案： B)laborsupplycurvewillhavetheusualupwardslope. 问题14得5分，满分5分 Theindustrydemandcurveforlaboristhe正确答案： A)horizontalsumofindividualfirmlabordemandcurves. 问题17得5分，满分5分 TheAcmeCompanyisaperfectcompetitorinitsinputmarketsanditsoutputmarket.Itsaverageproductoflaboris30,themarginalproductoflaboris20,thepriceoflaboris$20,andthepriceoftheoutputis$5.ForAcmeCompany,themarginalrevenueproductoflabor正确答案： A)is$100. 问题18得5分，满分5分 TheAcmeCompanyisaperfectcompetitorinitsinputmarketsandamonopolistinitsoutputmarket.Itsaverageproductoflaboris30,themarginalproductoflaboris20,thepriceoflaboris$20,andthepriceoftheoutputis$5.ForAcmeCompany,themarginalrevenueproductoflabor正确答案： E)cannotbedeterminedwiththeinformationprovided. 问题19得5分，满分5分 TheAcmeCompanyisaperfectcompetitorinitsinputmarketsandamonopolistinitsoutputmarket.Themarginalproductoflaboris20andthepriceofAcme'soutputis$10.ForAcmeCompany,themarginalrevenueproductoflaboris正确答案： D)lessthan$200. 问题20得5分，满分5分 TheAcmeCompanyisaperfectcompetitorinitsinputmarketsanditsoutputmarket.Itsaverageproductoflaborisatitsmaximumandequals30.Themarginalrevenueproductoflaboris$300.Thepriceofitsoutput 正确答案： B)is$10.Chapter16窗体顶端Chapter17窗体顶端 问题135分 保存 Whenfirmsparticipateingrouphealthinsuranceforallemployees,itA)raisesratesforeveryone,becauseitbringsunhealthypeopleintothepool.B)raisesratesforunhealthypeople.C)maylowerratesforallpeopletotheextentthatitkeepshealthypeopleinthepool.D)preventsunhealthypeoplefrom"selectingout,"tothedetrimentofhealthypeople.E)increasestheamountofinformationavailabletoinsurersaboutthepopulation. 问题165分 保存 Inthearenaofasymmetricinformation,standardization(forexample,menusatMcDonald'srestaurants)isasubstituteforA)quality.B)governmentregulation.C)reputationofindividualsellers.D)firms'distinguishingamongbuyers.E)firms'segregationofbuyers. 问题195分 保存 HowdoonlineauctionsiteslikeEbayattempttoovercometheasymmetricinformationproblemsassociatedwithgoodsthatthebuyercannotpersonallyinspectbeforepurchase A)Theonlineauctionfirmonlyallowshigh-qualitymerchandisetobesoldattheirsite.B)Thepreviousperformance(reputations)ofthebuyerandsellerarepostedforpublicreview.C)Buyerscantakereceiptofanygoodsbeforetheyhavetopaytheseller.D)alloftheaboveChapter18窗体顶端 问题25分 保存 Constructingplasticcontainersproducesairpollutants.Therefore,inthemarketforplasticcontainers,A)themarginalsocialcostcurveisaboveandtotherightofthedemandcurve.B)themarginalsocialcostcurveisbelowandtotheleftofthedemandcurve.C)themarginalsocialcostcurveisaboveandtotheleftofthesupplycurve.D)themarginalsocialcostcurveisbelowandtotherightofthesupplycurve.E)thereisagapbetweenquantitysuppliedandquantitydemandedinequilibrium. 问题35分 保存 Drycleaningofclothingproducesairpollutants.Therefore,inthemarketfordrycleaningservices,theequilibriumpriceA)andoutputaretoolowtobeoptimal.B)andoutputaretoohightobeoptimal.C)istoolowtobeoptimal,andequilibriumquantityistoohigh.D)istoohightobeoptimal,andequilibriumquantityistoolow.E)isoptimal,butthereisanexcesssupply. 问题55分 保存 Becausetruckingasanindustryinvolvesthegenerationo fpollutantsinengineexhaust,A)thesupplycurveoftruckingservicesoverstatesthetruecostofprovidingthoseservices.B)thesupplycurveoftruckingservicesunderstatesthetruecostofprovidingthoseservices.C)thedemandcurvefortruckingservicesoverstatesthetruebenefitofprovidingthoseservices.D)thedemandcurvefortruckingservicesunderstatesthetruebenefitofprovidingthoseservices.E)themarketfortruckingserviceswillalwaysbeawayfromequilibriumbyanamountequaltothevalueoftheexternality. 问题65分 保存 Becauseaircargoasanindustryinvolvesthegenerationofpollutantsinengineexhaust,theequilibriumpriceofaircargoservicesA)isabovetheoptimallevel,andquantityisbelowtheoptimallevel.B)isbelowtheoptimallevel,andquantityisabovetheoptimallevel.C)andquantityoftruckingservicesarebothabovetheoptimallevel.D)andquantityoftruckingservicesarebothbelowtheoptimallevel.E)mustfallinorderforthemarkettoreachequilibrium. 问题95分 保存 Themarginalbenefitandmarginalprivatecostcurvesforaphrodisiacsaregivenasfollows:MB=200-QMPC=QInadditiontoprivatecosts,thereisamarginalexternalcostof$10perunitofoutput.Whatistheefficientlevelofoutput? A)0B)55C)95D)100E)noneoftheabove 问题115分 保存 BecauseofthekindofexternalitiesthattendtobegeneratedfromgeneralR&Dresourcesboughtbyfirms,theequilibriumpriceofR&DA)isabovetheoptimallevel,andquantityisbelowtheoptimallevel.B)isbelowtheoptimallevel,andquantityisabovetheoptimallevel.C)andquantityofR&Darebothabovetheoptimallevel.D)andquantityofR&Darebothbelowtheoptimallevel.E)mustfallinorderforthemarkettoreachequilibrium. 问题125分 保存 Duetoexternalitiesgeneratedbyhomelandscaping,itspriceA)isabovetheoptimallevel,andquantitythatisbelowtheoptimallevel.B)isbelowtheoptimallevel,andquantitythatisabovetheoptimallevel.C)andquantitytradedarebothabovetheoptimallevel.D)andquantitytradedarebothbelowtheoptimallevel.E)mustfallinorderforthemarkettoreachequilibrium. 问题135分 保存 Apositiveexternalityisshownbyamarginalsocialbenefit(MSB)curvethatis A)aboveandtotherightofthedemandcurveforthegoodthatgeneratesit.B)belowandtotheleftofthedemandcurveforthegoodthatgeneratesit.C)aboveandtotheleftofthesupplycurveforthegoodthatgeneratesit.D)belowandtotherightofthesupplycurveforthegoodthatgeneratesit.E)positivelyrelatedtoboththesupplycurveandthedemandcurveforthegoodthatgeneratesit. 问题185分 保存 Whenemissionsaremeasuredonthehorizontalaxis,themarginalcostofabatingemissionsisA)downward-slopingbecauseemissionsbecomemoreandmoreeasytoeliminateoncethefirmmakestheinitialcommitmenttodoso.B)downward-slopingbecauseahighlevelofemissionsischeaptoattain,andalowlevelofemissionsisexpensivetoattain.C)upward-slopingbecauseemissionsbecomemoreandmoreeasytoeliminateoncethefirmmakestheinitialcommitmenttodoso.D)upward-slopingbecauseahighlevelofemissionsischeaptoattain,andalowlevelofemissionsisexpensivetoattain.E)horizontalbecausethetechnologytoremoveemissionsisassumedconstant. 问题195分 保存 Asyoumoverightwardonamarginalcostofabatementcurve,emissionsareA)falling,andthecostofeliminatingthemarginalunitfalls.B)rising,andthecostofeliminatingthemarginalunitfalls.C)falling,andthecostofeliminatingthemarginalunitrises.D)rising,andthecostofeliminatingthemarginalunitrises. E)rising,andthecostofeliminatingthemarginalunitisconstant. 问题205分 保存 Leftalone,withnogovernmentinterference,aprofit-maximizingfirmwillproduceemissionsA)wheretheMSBcurvecrossestheMCAcurve.B)attheverticalinterceptoftheMSBcurve.C)atthehorizontalinterceptoftheMSBcurve.D)attheverticalinterceptoftheMCAcurve.E)atthehorizontalinterceptoftheMCAcurve.窗体底端窗体底端窗体底端窗体底端窗体底端窗体底端窗体底端窗体底端
