第一章測試1【單選題】(10分)WhatMicroeconomicsisabout?()A.StudyofBusinessEnvironmentB.StudyoffinancialpositionoftheeconomyC.StudyoftheEconomyatMicroLevel2【單選題】(10分)Economicsproceedsbymakingmodelsof(),whicharesimplifiedrepresentationsofreality.A.socialphenomenaB.people’simaginationC.stories3【單選題】(10分)Thedemandcurveshows()A.howmuchpeoplewouldliketopayatthereserveprices.B.howmuchmarketwouldliketotrade.C.howmuchfirmswouldliketosellateachprices.4【判斷題】(10分)Theconflictbetweenthescarceeconomicwantsofsocietyanditslimitedresourcesgivesrisetotheeconomizingproblem.A.錯B.對5【判斷題】(10分)Theonlyrequirementforamarkettobeperfectlycompetitiveisforthemarkettohavemanybuyersandsellers.A.對B.錯6【單選題】(10分)EconimicsisthestudyofA.HowtomaxmizecomsumerwealthB.HowtomakeeconomicpoliciesC.HowsocietiesusescarceresourcesD.Howtomaxmizetheprofit7【單選題】(10分)ScarceresourcesmeanA.ResourcesarenotrenewableB.ResourcemustbeprotectfornextgenerationC.Comparingwithdemand,resourcesarealwayslimitedD.Resourceswillbeexhausted8【判斷題】(10分)Inmarket,priceswilltransferinformationaboutsupplyanddemandA.對B.錯9【判斷題】(10分)Economicequilibriummeanstheeconomicstatuswillnotbechangedwithoutotherschanging.A.錯B.對10【判斷題】(10分)Marketallocationofresourcesmeansmarketusepricesassignalstoallocateresourcestotheirhighestvalueduse.A.對B.錯第二章測試1【判斷題】(10分)Iftherearetwogoodswithpositivepricesandthepriceofonegoodisreduced,whileincomeandotherpricesremainconstant,thenthesizeofthebudgetsetisreduced.A.對B.錯2【判斷題】(10分)Ifpreferencesaretransitive,moreisalwayspreferredtoless.A.對B.錯3【判斷題】(10分)Withquasi-linearpreferences,theslopeofindifferencecurvesisconstantalongallraysthroughtheorigin.A.錯B.對4【單選題】(10分)Hanshas27dollars,whichhedecidestospendonxandy.Commodityxcosts$16perunitandcommodityycosts$10perunit.HehastheutilityfunctionU(x,y)=5x2+2y2andhecanpurchasefractionalunitsofxandy.A.Hanswillchooseonlyx.B.Hanswillchosesomeofeachcommodity,butmoreythanx.C.Hanswillchoosesomeofeachcommodity,butmorexthany.D.Hanswillchooseonlyy.5【單選題】(10分)WandaLittlemore'sutilityfunctionisU(x,y)=x+63y2.Herincomeis184.Ifthepriceofxis1andthepriceofyis33,howmanyunitsofgoodxwillWandademand?A.19B.22C.24D.176【判斷題】(10分)Ifoneutilityfunctionisamonotonictransformationofanother,thentheformermustassignahigherutilitynumbertoeverybundlethanthelatter.A.錯B.對7【判斷題】(10分)Ifaconsumerdoesnothaveconvexpreferences,thenapointoftangencybetweenherindifferencecurveandherbudgetlinemustbeanoptimalconsumptionpoint.A.錯B.對8【單選題】(10分)Isobelconsumespositivequantitiesofbothjamandandjuice.Thepriceofjamis5centsperunitandthepriceofjuiceis10centsperunit.Hermarginalutilityofjamis10andhermarginalutilityofjuiceis5.A.Withoutchanginghertotalexpenditures,shecouldincreaseherutilitybyconsumingmorejuiceandlessjam.B.Wecan'ttellwhetheranyoftheotherstatementsaretrueorfalsewithoutknowingthequantitiessheconsumes.C.Withoutchanginghertotalexpenditures,shecouldincreaseherutilitybyconsumingmorejamandlessjuice.D.Withoutchanginghertotalexpendituresonjamandjuice,shecouldnotincreaseherutility.9【單選題】(10分)A.19B.22C.24D.1710【判斷題】(10分)Iftheequlibriumpriceofgasolineis$1.00pergallonandthegovernmentplacesapriceceilingongasolineof$1.50pergallon,theresultwillbeashortageofgasolineA.對B.錯第三章測試1【判斷題】(10分)Ifpreferencesarequasilinear,thenforveryhighincomestheincomeoffercurveisastraightlineparalleltooneoftheaxes.A.對B.錯2【判斷題】(10分)Iftwogoodsaresubstitutes,thenanincreaseinthepriceofoneofthemwillincreasethedemandfortheother.A.錯B.對3【判斷題】(10分)AnEngelcurveisademandcurvewiththeverticalandhorizontalaxesreversed.A.錯B.對4【單選題】(10分)Daisyreceivedataperecorderasabirthdaygiftandisnotabletoreturnit.HerutilityfunctionisU(x,y,z)=x+z1/2f(y)wherezisthenumberoftapesshebuys,yisthenumberoftaperecordersshehasandxistheamountofmoneyshehaslefttospend.f(y)=0ify<1andf(y)=8ifyis1orgreater.Thepriceoftapesis2andshecaneasilyaffordtobuydozensoftapes.Howmanytapeswillshebuy?A.8B.2C.6D.45【單選題】(10分)Mikeconsumestwocommodities,xandy;andhisutilityfunctionismin{x+2y,y+2x}.Hechoosestobuy8unitsofgoodxand16unitsofgoody.Thepriceofgoodyis0.50.Whatishisincome?A.32B.24C.16D.406【判斷題】(10分)Quasilinearpreferencesarehomotheticwhentheoptimalamountofoneofthegoodsisnotaffordable.A.錯B.對7【單選題】(10分)Waltconsumesstrawberriesandcreambutonlyinthefixedratioofthreeboxesofstrawberriestotwocartonsofcream.Atanyotherratio,theexcessgoodsaretotallyuselesstohim.Thecostofaboxofstrawberriesis10andthecostofacartonofcreamis10.Walt'sincomeis200.Whichofthefollowingistrue?A.Waltdemands10cartonsofcream.B.Waltdemands10boxesofstrawberries.C.Waltconsidersstrawberriesandcartonsofcreamtobeperfectsubstitutes.D.Waltdemands12boxesofstrawberries.8【單選題】(10分)Madonnabuysonlytwogoods.HerutilityfunctionisCobb-Douglas.Herdemandfunctionshavewhichofthefollowingproperties?A.Herdemandforneithergooddependsonincome.B.Herdemandforoneofthetwogoodsdoesnotdependonincome.C.Herdemandforeachofthetwogoodsdependsonlyonherincomeandonthepriceofthatgooditself.D.Herdemandforeachofthegoodsdependsonincomeandonthepricesofbothgoods.9【多選題】(10分)Thedownwardslopingdemandcurvecanbeexplainedby：A.noneofallB.TheincomeeffectC.DiminishingmarginalreturnsD.Diminishingmarginalutility10【單選題】(10分)Otherthingsheldconstant,whichofthefollowingwouldnotcauseachangeindemandforbeef?A.AdecreaseinthepriceofbeefB.Adecreaseinconsumers'incomesduringarecessionC.AnexpectationthatnextmonthpriceswillbelowerD.Anincreaseinthepriceofchickenwhichisasubstituteforbeef第四章測試1【判斷題】(10分)Thestrongaxiomofrevealedpreferencerequiresthatifaconsumerchoosesxwhenhecanaffordy;andchoosesywhenhecanaffordz;thenhewillnotchoosezwhenhecanaffordx.A.對B.錯2【判斷題】(10分)Ifaconsumermaximizesautilityfunctionsubjecttoabudgetconstraintandhasstrictlyconvexpreferences,thenhisbehaviorwillnecessarilysatisfytheweakaxiomofrevealedpreferenceandthestrongaxiomofrevealedpreference.A.錯B.對3【判斷題】(10分)TheLaspeyrespriceindexdiffersfromthePaaschepriceindexbecausetheLaspeyresindexholdspricesconstantandvariesquantitieswhilethePaaschepriceindexholdsquantitiesconstantandvariesprices.A.對B.錯4【單選題】(10分)LetAstandforthebundle(7,9);Bstandforthebundle(10,5);andCstandforthebundle(6,6).Whenpricesare(2,4);BettychoosesC.Whenpricesare(12,3)shechoosesA.Whichofthefollowingistrue?A.CisdirectlyrevealedpreferredtoA.B.AisdirectlyrevealedpreferredtoB.C.NoneofallD.AisindirectlyrevealedpreferredtoB.5【單選題】(10分)RememberthattheLaspeyrespriceindexusestheoldquantitiesfortheweights.In1971,goodxcost3andgoodycost1.Thecurrentpriceofgoodxis3andthecurrentpriceofgoodyis5.In1971theconsumptionbundlewas(x,y)=(3,5).Thecurrentconsumptionbundleis(x,y)=(9,4).TheLaspeyresindexofcurrentpricesrelativeto1971pricesisclosesttowhichofthefollowingnumbers?A.2.43B.0.30C.1.52D.3.366【判斷題】(10分)Itfollowsfromtheweakaxiomofrevealedpreferencethatifaconsumerchoosesxwhenhecouldaffordyandchoosesywhenhecouldaffordx;thenhisincomemusthavechangedbetweenthetwoobservations.A.對B.錯7【單選題】(10分)Atprices(4,12);Harrychoosesthebundle(9,4).Attheprices(8,4);Harrychoosesthebundle(2,9).Isthisbehaviorconsistentwiththeweakaxiomofrevealedpreference?A.YesB.Wewouldhavetoobserveathirdchoicetobeabletosay.C.NoD.Itdependsonhisincome.8【單選題】(10分)Astudentspendsallofherincomeonpizzaandbooks.Whenpizzascost$3eachandbookscost$10each,sheconsumed30pizzasand3bookspermonth.Thepriceofpizzasfellto$2.90eachwhilethepriceofbooksroseto$11each.Thepricechange:A.hadthesameeffectasa$3increaseinherincome.B.madeherworseoffC.leftheratleastaswelloffasbeforeandpossiblyhelpedher.D.leftherexactlyaswelloffasbefore.9【單選題】(10分)Ifthebundlexisrevealed(directlyorindirectly)aspreferredtothebundleyandx1y,thenitisneverthecasethattheyisrevealed(directlyorindirectly)aspreferredtox;sothenecessaryandsufficientconditionforwell-behavedpreferenceis()A.indirectlypreferredB.convexityandmonotonicityC.RevoveringindifferencecurveD.StrongAxiomofRevealedPreference10【判斷題】(10分)Revealedpreferenceanalysisteststhebehavioralhypothesisthataconsumerchoosesthemostpreferredbundlefromthoseavailable.Discovertheconsumer'spreferencerelation.A.對B.錯第五章測試1【判斷題】(10分)AGiffengoodmustbeaninferiorgood.A.錯B.對2【判斷題】(10分)Thecompensateddemandfunctionreferstothedemandfunctionofsomeonewhoisadequatelypaidforwhatheforshesells.A.錯B.對3【判斷題】(10分)Inthecaseofhomotheticpreferencestheentirechangeindemandfromapricechangeisduetothesubstitutioneffect.A.對B.錯4【單選題】(10分)Waltconsidersxandytobeperfectsubstitutes.Theyoriginallycost10and9respectively.Hisincomeis720.Onedaythepriceofxdropsto8.Whichofthefollowingistrue?A.Thesubstitutioneffectincreasesthequantityofxby90B.Thesubstitutioneffectincreasesthequantityofyby80.C.Theincomeeffectincreasesthequantityofxby80.D.Theincomeeffectincreasesthequantityofyby90．5【單選題】(10分)SupposethatbananasareanormalgoodandWoodyiscurrentlyconsuming100bananasatapriceof10centseach.A.HisordinarydemandcurveissteepertotheleftandhisSlutskycompensateddemandcurveissteepertotherightofthispoint.B.HisordinarydemandcurvegoingthroughthispointissteeperthanhisSlutskycompensateddemandcurve.C.HisSlutskycompensateddemandcurvegoingthroughthispointissteeperthanhisordinarydemandcurve.D.Whetherhisordinarydemandcurveorhiscompensateddemandcurveissteeper,dependsonwhetherhispriceelasticityisgreaterthan1.6【判斷題】(10分)Johnpurchasestwogoods,xandy.Goodxisaninferiorgoodforsomerangeofincome.Theremustbeanotherrangeofincomeforwhichgoodxisanormalgood.A.錯B.對7【單選題】(10分)Thefollowingcanbesaidabouttheincomeandsubstitutioneffectsofapriceincreaseonthedemandforthegoodwhosepricerose:A.Whilethelatterisalwaysnegative,theformercanbeeitherpositiveornegative.B.Bothcanbeeitherpositiveornegative.C.Theformerisalwayspositiveandthelatterisalwaysnegative.D.Whiletheformerisalwaysnegative,thelattercanbeeitherpositiveornegative.8【單選題】(10分)Whenthepriceofxrises,Marvinrespondsbychanginghisdemandforx.Thesubstitutioneffectisthepartofthischangethatrepresentshischangeindemand:A.ifheisallowedtosubstituteasmuchxforyashewishes.B.noneofall.C.ifhismoneyincomeisheldconstantwhenthepriceofxchanges.D.holdingthepricesofsubstitutesconstant.9【單選題】(10分)nonnegativemeans()A.Ifwehaveanormalgood,thesubtitutioneffectandtheincomeeffectworkinisnonnegative.B.Ifthepriceofagoodgoesup,ifthegoodisanormalgood,thenitisnonnegativeC.Ifpriceofgoodgoesdown,thechangeinthedemandforthegoodduetothesubtitutioneffectmustbenonnegativeD.Forsamllchangesinprice,HicksandSlutskydefinitionsforsubstitutioneffectsarenonnegative10【單選題】(10分)oppositetothatofthepricechange,()justlikethesultskysubstitutioneffectA.HickssubstitutioneffectB.ThesubstitutioneffectisC.HickssubstitutioneffectmustbeinadirectionD.SARPisbothanecessaryandasufficientcondition(UnlikeWARP)forwhat?第六章測試1【判斷題】(10分)Ifarationalutilitymaximizerisanetdemanderofagood,andifanincreaseinitspricecauseshimtobuymoreofit,thenitmustbeaninferiorgood.A.錯B.對2【判斷題】(10分)Ifaconsumerisabuyerofsomegoodsandasellerofothers,thenachangeinpriceswillgenerateanextraincomeeffectintheSlutskyequationduetotherevaluationoftheconsumer'sendowment.A.對B.錯3【判斷題】(10分)Ifautilitymaximizerisanetsellerofsomethingandthepriceofthatgoodriseswhileotherpricesstayconstant,hersituationmightimprovesomuchthatshebecomesanetbuyerA.錯B.對4【單選題】(10分)MarshaMellowisveryflexible.Sheconsumesxandy.Shesays`Givemexorgivemey;Idon'tcare.Ican'ttellthedifferencebetweenthem.'Sheiscurrentlyendowedwith14unitsofxand6unitsofy.Thepriceofxis4timesthepriceofy.Marshacantradexandyatthegoingprices,buthasnoothersourceofincome.HowmanyunitsofywillMarshaconsume?A.66B.6C.20D.625【單選題】(10分)Yoraminsistsonconsuming3timesasmuchyasheconsumesofx(sohealwayshasy=3x).Hewillconsumethesegoodsinnootherratio.Thepriceofxis2timesthepriceofy.Yoramhasanendowmentof24x0sand42y0swhichhecantradeatthegoingprices.Hehasnoothersourceofincome.WhatisYoram'sgrossdemandforx?A.90B.18C.66D.166【判斷題】(10分)Ifleisureisanormalgood,thenanincreaseinnon-laborincomewillreducelaborsupply.A.錯B.對7【單選題】(10分)Mr.Coghas18hoursperdaytodividebetweenlaborandleisure.HisutilityfunctionisU(C,R)=CR;whereCisdollarsperyearspentonconsumptionandRishoursofleisure.Ifhehasanonlaborincomeof40dollarsperdayandawagerateof8dollarsperhour,hewillchooseacombinationoflaborandleisurethatallowshimtospend:A.82dollarsperdayonconsumption.B.184dollarsperdayonconsumption.C.92dollarsperdayonconsumption.D.112dollarsperdayonconsumption.8【單選題】(10分)IfAbishagowns12quincesand10kumquats,andifthepriceofkumquatsis3timesthepriceofquinces,howmanykumquatscansheaffordifshebuysasmanykumquatsasshecan?A.10B.22C.28D.149【單選題】(10分)IfAbishagowns16quincesand15kumquats,andifthepriceofkumquatsis4timesthepriceofquinces,howmanykumquatscansheaffordifshebuysasmanykumquatsasshecan?A.19B.15C.31D.3810【判斷題】(10分)ThesharepriceofGrathOiliscurrently$77.06.Severalmonthsago,whenthepricewas$51.21,Charlesbought186sharesofGrathOil.IfhesellsallofhisstockinGrathOiltoday,howmuchprofitwillhemake?→$1,504.17A.對B.錯第七章測試1【判斷題】(10分)Consumer'ssurplusisanothernameforexcessdemand.A.錯B.對2【判斷題】(10分)Theequivalentvariationinincomefromataxistheamountofextraincomethataconsumerwouldneedinordertobeaswelloffafterthetaxisimposedashewasoriginally.A.錯B.對3【判斷題】(10分)Withquasilinearpreferences,theequivalentvariationandthecompensatingvariationinincomeduetoataxarethesame.A.對B.錯4【單選題】(10分)Ella'sutilityfunctionismin{4x,y}.Ifthepriceofxis15andthepriceofyis20,howmuchmoneywouldsheneedtobeabletopurchaseabundlethatshelikesaswellasthebundle(x,y)=(5,8)?A.190B.235C.198D.925【單選題】(10分)Sam'sutilityfunctionisU(x,y)=2x+ywherexisthenumberofx'sheconsumesperweekandyisthenumberofy'sheconsumesperweek.Samhas$200aweektospend.Thepriceofxis4.Samcurrentlydoesn'tconsumeanyy.Samhasreceivedaninvitationtojoinaclubdevotedtoconsumptionofy.Ifhejoinstheclub,Samcangetadiscountonthepurchaseofy.Ifhebelongedtotheclubhecouldbuyyfor$1aunit.HowmuchisthemostSamwouldbewillingtopaytojointhisclub?A.$50aweekB.nothingC.$40aweekD.$100aweek6【單選題】(10分)SirPlushasademandfunctionformeadthatisgivenbytheequationD(p)=100-P.Ifthepriceofmeadis75,howmuchisSirPlus'snetconsumersurplus?A.156.25B.25C.312.5D.6257【單選題】(10分)SamhasquasilinearpreferencesandhisdemandfunctionforxisD(p)=15-p/3.Thepriceofxisinitially$15perunitandincreasesto$24perunit.Sam'schangeisconsumersurplusistheclosestto:A.-168B.-27C.75D.-768【單選題】(10分)Attheinitialprices,Teodoroisanetsellerofapplesandanetbuyerofbananas.Ifthepriceofapplesdecreasesandthepriceofbananasdoesnotchange:A.thecompensatingvariationmustbepositiveandtheequivalentvariationnegative.B.boththecompensatingvariationandtheequivalentvariationmustbepositive.C.thecompensatingvariationmustbenegativeandtheequivalentvariationpositive.D.boththecompensatingvariationandtheequivalentvariationmustbenegative.9【單選題】(10分)()isthedifferencebetweenwhatconsumersarewillingandabletopayforagoodandwhattheyactuallypayforthegood.A.measuresofcostB.marginalproductC.ConsumerSurplusD.Demandcurves10【單選題】(10分)()depictthevariousquantitiesthatbuyerswouldbewillingandabletopurchaseatdifferentpricesA.AveragecostsB.ConsumersurplusC.DemandcurvesD.Fixedcost第八章測試1【判斷題】(10分)TheinversedemandcurveP(x)foragoodxmeasuresthepriceperunitatwhichthequantityxwouldbedemanded.A.錯B.對2【判斷題】(10分)Ifapricechanges,thenchangesinconsumptionattheintensivemarginarechangesthathappenbecauseconsumersaltertheamountsthattheyconsume,butdonoteitherstopconsumingorstartconsumingthegood.A.錯B.對3【判斷題】(10分)Ifthedemandfunctionisq=3m=p;wheremisincomeandpisprice,thentheabsolutevalueofthepriceelasticityofdemanddecreasesaspriceincreases.A.錯B.對4【單選題】(10分)Apeckis1/4ofabushel.Ifthepriceelasticityofdemandforbranis-0.2whenbranismeasuredinbushels,thenwhenbranismeasuredinpecks,thepriceelasticityofdemandforbranwillbe:A.-0.8B.-0.1C.-0.05D.Noneofall5【判斷題】(10分)Marginalrevenueisequaltopriceifthedemandcurveishorizontal.A.錯B.對6【單選題】(10分)Theconstantelasticityofdemandforcigaretteshasbeenestimatedtobe0.5.Toreducesmokingby75%,approximatelyhowmuchtaxneedstobeaddedtoa$1pack?A.$0.75B.$0.38C.$2.25D.$1.57【單選題】(10分)Marketdemandrelevanttoindustrymarketingexpenditureshowinfinity,issaidtobe()A.marketpotentialB.productpotentialC.sharepotentialD.marketdemand8【單選題】(10分)()OccurswhenthequantitydemandedchangeslittleaspricechangesA.FixedcostB.InelasticC.unitelasticD.Elastic9【判斷題】(10分)ElasticityofDemandmeansameasureofhowresponsiveconsumersaretopricechanges.A.錯B.對10【判斷題】(10分)PriceFloormeansalegalminimumpricethatbuyersmustpayforaproduct.A.對B.錯第九章測試1【判斷題】(10分)Ifthesupplycurveisvertical,thentheamountsuppliedisindependentofprice.A.對B.錯2【判斷題】(10分)Thesupplycurveslopesupandtotheright.Ifthedemandcurveshiftsupwardtoanewcurvewhichiseverywherehigherthantheoldcurve(butpossiblyofdifferentslope)andifthesupplycurvedoesnotshift,thentheequilibriumpriceandquantitymustnecessarilyincrease.A.錯B.對3【判斷題】(10分)AneconomicsituationisParetooptimalonlyifthereisnowaytomakesomeonebetteroff.A.對B.錯4【單選題】(10分)Thedemandforpicklesisgivenbyp=131-2qandsupplyisgivenbyp=5+7q.Whatistheequilibriumquantity?A.14B.103C.19D.115【單選題】(10分)Thedemandfunctionforfreshstrawberriesisq=200-5pandthesupplyfunctionisq=60+2p.Whatistheequilibriumprice?A.40B.10C.20D.506【判斷題】(10分)Ifaquantitytaxiscollectedfromcompetitivesuppliersofagood,placingataxonthegoodcausesthepricepaidbyconsumerstoincreasemorethanifthetaxhadbeencollecteddirectlyfromthebuyers.A.對B.錯7【單選題】(10分)ThedemandfunctionforxisD(p)=65-2pandthesupplyfunctionisS(p)=20+p.Thepricethatshouldbesettorestrictquantitysuppliedto30unitsisclosestto:A.5B.10C.15D.508【單選題】(10分)Thedemandfunctionforrentalapartmentsisq=960-7pandthesupplyfunctionisq=160+3p.Thegovernmentmakesitillegaltochargearenthigherthan35.Howmuchexcessdemandwilltherebe?A.450B.726C.149D.3649【單選題】(10分)()factorsotherthanpricethatlocatethepositionofademandcurve1.consumers'tastes2.ofconsumersinthemarket3.consumers'incomes4.thepricesofrelatedgoods5.expectedpricesSHIFTSthecurveA.inferiorgoodB.determinantsofdemandC.determinantsofsupplyD.normalgood10【單選題】(10分)agood(orservice)whoseconsumptiondeclinesasincomerisesandincreasesasincomedecreasesincreaseinincome=decreaseinconsumptiondecreaseinincome=increaseinconsumptionA.substitutegoodB.pricefloorC.normalgoodD.inferiorgood第十章測試1【判斷題】(10分)Theproductionsetofafirmisthesetofallproductsthefirmcanproduce.A.錯B.對2【判斷題】(10分)Aproductionisoquantisalocusofcombinationsofinputsthatareequallyprofitable.A.對B.錯3【單選題】(10分)Ifafirmmovesfromonepointonaproductionisoquanttoanotherpointonthesameisoquant,whichofthefollowingwillcertainlyNOThappen?A.achangeintheratioinwhichtheinputsarecombinedB.achangeinthemarginalproductsoftheinputsC.achangeinthelevelofoutputD.achangeintherateoftechnicalsubstitution4【單選題】(10分)Inanyproductionprocess,themarginalproductoflaborequals:A.totaloutputproducedwiththegivenlaborinputs.B.thechangeinoutputperunitchangeinlaborinputfor'small'changesintheamountofinput.C.thevalueoftotaloutputminusthecostofthefixedcapitalstock.D.totaloutputdividedbytotallaborinputs.5【判斷題】(10分)Theproductionfunctionf(x,y)=x+yhasconstantreturnstoscaleA.對B.錯6【單選題】(10分)TheproductionfunctionQ=50K0.75L0.75exhibitsA.decreasingreturnstoscale.B.constantreturnstoscale.C.increasing,thendiminishingreturnstoscale.D.increasingreturnstoscale.7【單選題】(10分)Afirmhasaproductionfunctionf(x,y)=1:10(x0.20+y0.20)5wheneverx>0andy>0.A.increasingreturnstoscale.B.constantreturnstoscale.C.increasingreturnstoscaleifx+y>1anddecreasingreturnstoscaleotherwise.D.decreasingreturnstoscale.8【單選題】(10分)()meanstherelationshipbetweentheinputsemployedbyafirmandthemaxoutputitcanproducewiththoseinputs.-TechnologyisprocesstoturnintooutproductionfunctionrepresentsfirmstechnologyA.ProductionfunctionB.GraphingproductionC.AveragetotalcostD.constantreturnstoscale9【判斷題】(10分)Atsomepintaddingmoreofavariableinput,suchaslabor,tothesameamountofafixedinput,suchascapital,willcausethemarginalproductofthevariableinputtodecline--MPLcouldbecomenegativeifworkersgotineachother'swaybutnofirmwouldhiretothispointA.錯B.對10【單選題】(10分)Does()declineeventuallyasthenumberofworkersincreasesA.MPLB.totalcostC.MinimumefficientscaleD.averagefixedcost第十一章測試1【判斷題】(10分)Themarginalproductofafactorisjustthederivativeoftheproductionfunctionwithrespecttotheamountofthisfactor,holdingtheamountsofotherfactorinputsconstant.A.對B.錯2【判斷題】(10分)Theweakaxiomofprofitmaximizingbehaviorstatesthatinamodernmixedeconomy,firmshaveonlyaweakincentivetomaximizeprofits.A.對B.錯3【判斷題】(10分)Afixedfactorisafactorofproductionthatisusedinfixedproportiontothelevelofoutput.A.對B.錯4【單選題】(10分)Acompetitivefirmproducesoutputusingthreefixedfactorsandonevariablefactor.Thefirm'sshortrunproductionfunctionis,wherexistheamountofvariablefactorused.Thepriceofoutputis$3perunitandthepriceofthevariablefactoris$9perunit.Intheshortrun,howmanyunitsofxshouldthefirmuse?A.40B.19C.80D.205【單選題】(10分)Aprofit-maximizingcompetitivefirmusesjustoneinput,x.Itsproductionfunctionisq=8x1/2.Thepriceofoutputis16andthefactorpriceis8.Theamountofthefactorthatthefirmdemandsis:A.10B.48C.22.63D.646【判斷題】(10分)Justasinthetheoryofutilitymaximizingconsumers,thetheoryofprofitmaximizingfirmsallowsthepossibilityof"Giffenfactors".Thesearefactorsforwhichafallinpriceleadstoafallindemand.A.對B.錯7【單選題】(10分)TheproductionfunctionisgivenbyF(L)=6L2/3.Supposethatthecostperunitoflaboris12andthepriceofoutputis6,howmanyunitsoflaborwillthefirmhire?A.8B.24C.16D.48【單選題】(10分)WhenFarmerHoglundappliesNpoundsoffertilizerperacre,themarginalproductoffertilizeris1-(N=200)bushelsofcorn.Ifthepriceofcornis$1perbushelandthepriceoffertilizeris$0.40perpound,thenhowmanypoundsoffertilizerperacreshouldFarmerHoglunduseinordertomaximizehisprofits?A.240B.64C.120D.2489【單選題】(10分)Acompetitivefirmproducesoutputusingthreefixedfactorsandonevariablefactor.Thefirm'sshortrunproductionfunctionisq=163x-2x2,wherexistheamountofvariablefactorused.Thepriceofoutputis$3perunitandthepriceofthevariablefactoris$9perunit.Intheshortrun,howmanyunitsofxshouldthefirmuse?A.20B.40C.19D.8010【單選題】(10分)Whichofthefollowingisashort-runadjustment?A.SixnewfirmsentertheplasticsindustryB.AlocalbakeryhirestwoadditionalbakersC.ThenumberoffarmsintheUnitedStatesdeclinesby5percentD.BMWconstructsanewassemblyplantinSouthCarolina第十二章測試1【判斷題】(10分)Inaperfectlycompetitiveindustry,thedemandcurveforthetotaloutputoftheindustrymaybedownwardsloping.A.錯B.對2【判斷題】(10分)PriceequalsmarginalcostisasufficientconditionforprofitmaximizationA.對B.錯3【單選題】(10分)Aprofitmaximizingdairyfarmiscurrentlyproducing10,000gallonsofmilkperday.Thegovernmentisconsideringtwoalternativepolicies.Oneistogivethefarmalumpsumsubsidyof$500permonth.Theotherpolicyistogivethefarmasubsidyof$.05pergallonofoutput.A.Whichsubsidyhasthegreatereffectonproductionatthisfarmdependsonwhetherfixedcostsaregreaterthanvariablecosts.B.Productionwillbeincreasedbyeitherkindofsubsidyifandonlyiftherearenotdecreasingreturnstoscale.C.Neithersubsidywillaffectproductionatthisfarm,sinceoutputisdeterminedbyprofitmaximization.D.Productionatthisfarmwillbeincreasediftheperunitsubsidyisadopted,butnotifthelump-sumsubsidyisadopted.E.Bothkindsofsubsidywillincreaseproductionatthisfarm.4【判斷題】(10分)Thecostfunctionc(w1,w2,y)expressesthecostperunitofoutputofproducingyunitsofoutputifequalamountsofbothfactorsareused.A.錯B.對5【單選題】(10分)Ifitcosts$10tosetupandlatercleanabagelpressandbagelscost$1perweek,perbagel,tostore,howmanytimesshouldthebagelpressberuneachweektoproduce500bagelsaweektobesoldcontinuously?A.Once.B.4timesC.3times.D.Twice6【單選題】(10分)IfoutputisproducedaccordingtoQ=4LK,thepriceofKis$10,andthepriceofLis$10,thenthecostminimizingcombinationofKandLcapableofproducing16unitsofoutputisA.L=8andK=8B.L=1andK=1C.L=2andK=2D.L=4andK=17【判斷題】(10分)TheaveragevariablecostcurvemustalwaysbeUshaped.A.錯B.對8【判斷題】(10分)Themarginalcostcurvepassesthroughtheminimumpointoftheaveragefixedcostcurve.A.錯B.對9【單選題】(10分)WhichofthefollowingismostlikelytobeanimplicitcostforCompanyX?A.forgonerentfromthebuildingownedandusedbyCompanyXB.paymentsforrawmaterialspurchasedfromCompanyYC.transportationcostspaidtoanearbytruckingfirmD.rentalpaymentsonIBMequipment10【單選題】(10分)Totheeconomist,totalcostincludes:A.implicit,butnotexplicit,costsB.explicitandimplicitcosts,includinganormalprofitC.neitherimplicitnorexplicitcostsD.explicit,butnotimplicit,costs第十三章測試1【判斷題】(10分)Inaperfectlycompetitiveindustry,thedemandcurveforthetotaloutputoftheindustrymaybedownwardsloping.A.錯B.對2【判斷題】(10分)PriceequalsmarginalcostisasufficientconditionforprofitmaximizationA.錯B.對3【單選題】(10分)Aprofitmaximizingfirmcontinuestooperateeventhoughitislosingmoney.Itsellsitsproductatapriceof$100.Fromthesefactswededucethat:A.averagetotalcostislessthan$100.B.averagefixedcostislessthan$100.C.averagevariablecostislessthan$100.D.marginalcostisincreasing.4【判斷題】(10分)Thechangeinproducer'ssurpluswhenthemarketpricechangesfromp1top2ishalfoftheareatotheleftofthemarginalcostcurvebetweenp1andp2.A.對B.錯5【單選題】(10分)AfirmhasthelongruncostfunctionC(q)=4q2+4.Inthelongrun,itwillsupplyapositiveamountofoutput,solongasthepriceisgreaterthan:

A.4B.8C.24D.166【單選題】(10分)SupposethatDentCarr'slongruntotalcostofrepairingscarsperweekisc(s)=3s2+27.Ifthepricehereceivesforrepairingacaris30,theninthelongrun,howmanycarswillhefixperweekifhemaximizesprofits?

A.0B.10C.7.5D.57【單選題】(10分)A.126B.252C.63D.2608【單選題】(10分)A.B.C.D.9【判斷題】(10分)Foraperfectlycompetitivefirmoperatingattheprofit-maximizingoutputlevelintheshortrun,itsmarginalcostequalsmarketpriceA.錯B.對10【單選題】(10分)A.72B.16C.32D.64第十四章測試1【單選題】(10分)Microsoftisa/an___inWindowsoperatingsystem.A.competitivefirmB.oligopolyC.monopsonyD.monopoly2【單選題】(10分)Monopolyis___.A.pricemakerB.quantitytakerC.pricetakerD.quantitymaker3【單選題】(10分)Monopolymaximizesitsprofitmainlyrelyonits___.A.costcurveB.supplycurveC.demandcurveD.demandcurveandcostcurve4【單選題】(10分)Whenmonopolisticprofithasbeenmaximized,itsmarginalcostis___thanitsmarginalrevenue.A.allaboveoptionsareB.smallerC.equaltoD.bigger5【單選題】(10分)Deadweightlossofmonopolyis___.A.badforproducerB.goodforconsumersC.goodforthesocietyD.badforthesociety6【判斷題】(10分)Foramonopolistwhofacesadownwardslopingdemandcurve,marginalrevenueislessthanpricewheneverquantitysoldispositive.A.錯B.對7【判斷題】(10分)MRcanpossiblybenegative.A.錯B.對8【單選題】(10分)()isamethodofsettingpricesthatoccurswhenmarginalrevenueequalsmarginalcostORsupplyquanitywhereTRexceedsTCbygreatestamount.A.PriceDiscriminationB.PricemakerC.BarriesofentryD.ProfitMaximization9【單選題】(10分)BarriesofEntryis()A.legal(patent),economiesofscale,controlofresourcesB.akindofstatethatnoonecouldchange.C.chargingdifferentpricestodifferentgroups.D.setbytheindustryorganization10【單選題】(10分)TosellataLargerQ,MonopolymustA.Thebuyer'sWTPwhichalsoincreasesProfitB.reducedfromaLowerPriceC.Sellssamegoodtodifferentpeopleatdifferentprices.D.LowerPricefromallunitssold=MR<P第十五章測試1【單選題】(10分)Amonopolistisabletopracticethirddegreepricediscriminationbetweentwomarkets.Thedemandfunctioninthefirstmarketisq=500-2pandthedemandfunctioninthesecondmarketisq=1500-6p.Tomaximizehisprofits,heshould:A.chargeahigherpriceinthefirstmarketthaninthesecond.B.sellonlyinoneofthetwomarkets.C.chargethesamepriceinbothmarkets.D.chargeahigherpriceinthesecondmarketthaninthefirst.2【單選題】(10分)Amonopolistsellsintwomarkets.Thedemandcurveforherproductisgivenbyp1=119-2x1inthefirstmarketandp2=123-5x2inthesecondmarket,wherexiisthequantitysoldinMarketiandpiisthepricechargedinMarketi.Shehasaconstantmarginalcostofproduction,c=3;andnofixedcosts.Shecanchargedifferentpricesinthetwomarkets.Whatistheprofit-maximizingcombinationofquantitiesforthismonopolist?A.x1=29andx2=12B.x1=41andx2=29C.x1=58andx2=14D.x1=39andx2=103【單選題】(10分)Aprice-discriminatingmonopolistsellsintwoseparatemarketssuchthatgoodssoldinonemarketareneverresoldintheother.It