中级微观经济学（双语）智慧树知到答案2024年山东财经大学

中级微观经济学（双语）山东财经大学智慧树知到答案2024年第一章测试

WhatMicroeconomicsisabout?(

)

A:StudyoftheEconomyatMicroLevelB:StudyoffinancialpositionoftheeconomyC:StudyofBusinessEnvironment

答案:AEconomicsproceedsbymakingmodelsof(

),whicharesimplifiedrepresentationsofreality.

A:storiesB:socialphenomenaC:people’simagination

答案:BThedemandcurveshows(

)

A:howmuchmarketwouldliketotrade.B:howmuchpeoplewouldliketopayatthereserveprices.C:howmuchfirmswouldliketosellateachprices.

答案:BTheconflictbetweenthescarceeconomicwantsofsocietyanditslimitedresourcesgivesrisetotheeconomizingproblem.

A:错B:对

答案:BTheonlyrequirementforamarkettobeperfectlycompetitiveisforthemarkettohavemanybuyersandsellers.

A:错B:对

答案:AEconimicsisthestudyof

A:Howsocietiesusescarceresources

B:HowtomakeeconomicpoliciesC:HowtomaxmizetheprofitD:Howtomaxmizecomsumerwealth

答案:AScarceresourcesmean

A:ResourcemustbeprotectfornextgenerationB:ResourceswillbeexhaustedC:ResourcesarenotrenewableD:Comparingwithdemand,resourcesarealwayslimited

答案:DInmarket,priceswilltransferinformationaboutsupplyanddemand

A:错B:对

答案:BEconomicequilibriummeanstheeconomicstatuswillnotbechangedwithoutotherschanging.

A:错B:对

答案:AMarketallocationofresourcesmeansmarketusepricesassignalstoallocateresourcestotheirhighestvalueduse.

A:对B:错

答案:A

第二章测试

Iftherearetwogoodswithpositivepricesandthepriceofonegoodisreduced,whileincome

andotherpricesremainconstant,thenthesizeofthebudgetsetisreduced.

A:错B:对

答案:A

Ifpreferencesaretransitive,moreisalwayspreferredtoless.

A:错B:对

答案:AWithquasi-linearpreferences,theslopeofindifferencecurvesisconstantalongallraysthroughtheorigin.

A:对B:错

答案:BHanshas27dollars,whichhedecidestospendonxandy.Commodityxcosts$16perunitandcommodityycosts$10perunit.HehastheutilityfunctionU(x,y)=5x2+2y2andhecanpurchasefractionalunitsofxandy.

A:

Hanswillchosesomeofeachcommodity,butmoreythanx.B:

Hanswillchooseonlyx.C:

Hanswillchoosesomeofeachcommodity,butmorexthany.D:

Hanswillchooseonlyy.

答案:DWandaLittlemore'sutilityfunctionisU(x,y)=x+63y2.Herincomeis184.Ifthepriceofxis1andthepriceofyis33,howmanyunitsofgoodxwillWandademand?

A:24B:17C:19D:22

答案:CIfoneutilityfunctionisamonotonictransformationofanother,thentheformermustassignahigherutilitynumbertoeverybundlethanthelatter.

A:对B:错

答案:BIfaconsumerdoesnothaveconvexpreferences,thenapointoftangencybetweenherindifferencecurveandherbudgetlinemustbeanoptimalconsumptionpoint.

A:对B:错

答案:BIsobelconsumespositivequantitiesofbothjamandandjuice.Thepriceofjamis5centsperunitandthepriceofjuiceis10centsperunit.Hermarginalutilityofjamis10andhermarginalutilityofjuiceis5.

A:Wecan'ttellwhetheranyoftheotherstatementsaretrueorfalsewithoutknowingthequantitiessheconsumes.B:Withoutchanginghertotalexpendituresonjamandjuice,shecouldnotincreaseherutility.C:Withoutchanginghertotalexpenditures,shecouldincreaseherutilitybyconsumingmorejamandlessjuice.D:Withoutchanginghertotalexpenditures,shecouldincreaseherutilitybyconsumingmorejuiceandlessjam.

答案:C

A:17B:24C:22D:19

答案:DIftheequlibriumpriceofgasolineis$1.00pergallonandthegovernmentplacesapriceceilingongasolineof$1.50pergallon,theresultwillbeashortageofgasoline

A:对B:错

答案:B

第三章测试

Ifpreferencesarequasilinear,thenforveryhighincomestheincomeoffercurveisastraightlineparalleltooneoftheaxes.

A:错B:对

答案:BIftwogoodsaresubstitutes,thenanincreaseinthepriceofoneofthemwillincreasethedemandfortheother.

A:对B:错

答案:AAnEngelcurveisademandcurvewiththeverticalandhorizontalaxesreversed.

A:错B:对

答案:ADaisyreceivedataperecorderasabirthdaygiftandisnotabletoreturnit.HerutilityfunctionisU(x,y,z)=x+z1/2f(y)wherezisthenumberoftapesshebuys,yisthenumberoftaperecordersshehasandxistheamountofmoneyshehaslefttospend.f(y)=0ify<1andf(y)=8ifyis1orgreater.Thepriceoftapesis2andshecaneasilyaffordtobuydozensoftapes.Howmanytapeswillshebuy?

A:4B:2C:8D:6

答案:AMikeconsumestwocommodities,xandy;andhisutilityfunctionismin{x+2y,y+2x}.Hechoosestobuy8unitsofgoodxand16unitsofgoody.Thepriceofgoodyis0.50.Whatishisincome?

A:32B:24C:16D:40

答案:CQuasilinearpreferencesarehomotheticwhentheoptimalamountofoneofthegoodsisnotaffordable.

A:错B:对

答案:AWaltconsumesstrawberriesandcreambutonlyinthefixedratioofthreeboxesofstrawberriestotwocartonsofcream.Atanyotherratio,theexcessgoodsaretotallyuselesstohim.Thecostofaboxofstrawberriesis10andthecostofacartonofcreamis10.Walt'sincomeis200.Whichofthefollowingistrue?

A:Waltdemands12boxesofstrawberries.B:Waltconsidersstrawberriesandcartonsofcreamtobeperfectsubstitutes.C:Waltdemands10boxesofstrawberries.D:Waltdemands10cartonsofcream.

答案:AMadonnabuysonlytwogoods.HerutilityfunctionisCobb-Douglas.Herdemandfunctionshavewhichofthefollowingproperties?

A:Herdemandforeachofthegoodsdependsonincomeandonthepricesofbothgoods.B:Herdemandforneithergooddependsonincome.C:Herdemandforoneofthetwogoodsdoesnotdependonincome.D:Herdemandforeachofthetwogoodsdependsonlyonherincomeandonthepriceofthatgooditself.

答案:DThedownwardslopingdemandcurvecanbeexplainedby：

A:TheincomeeffectB:noneofallC:DiminishingmarginalreturnsD:Diminishingmarginalutility

答案:ADOtherthingsheldconstant,whichofthefollowingwouldnotcauseachangeindemandforbeef?

A:AdecreaseinthepriceofbeefB:Adecreaseinconsumers'incomesduringarecessionC:AnincreaseinthepriceofchickenwhichisasubstituteforbeefD:Anexpectationthatnextmonthpriceswillbelower

答案:A

第四章测试

Thestrongaxiomofrevealedpreferencerequiresthatifaconsumerchoosesxwhenhecanaffordy;andchoosesywhenhecanaffordz;thenhewillnotchoosezwhenhecanaffordx.

A:对B:错

答案:AIfaconsumermaximizesautilityfunctionsubjecttoabudgetconstraintandhasstrictlyconvexpreferences,thenhisbehaviorwillnecessarilysatisfytheweakaxiomofrevealedpreferenceandthestrongaxiomofrevealedpreference.

A:错B:对

答案:BTheLaspeyrespriceindexdiffersfromthePaaschepriceindexbecausetheLaspeyresindexholdspricesconstantandvariesquantitieswhilethePaaschepriceindexholdsquantitiesconstantandvariesprices.

A:对B:错

答案:B

LetAstandforthebundle(7,9);Bstandforthebundle(10,5);andCstandforthebundle(6,6).Whenpricesare(2,4);BettychoosesC.Whenpricesare(12,3)shechoosesA.Whichofthefollowingistrue?

A:AisindirectlyrevealedpreferredtoB.B:CisdirectlyrevealedpreferredtoA.C:AisdirectlyrevealedpreferredtoB.D:Noneofall

答案:DRememberthattheLaspeyrespriceindexusestheoldquantitiesfortheweights.In1971,goodxcost3andgoodycost1.Thecurrentpriceofgoodxis3andthecurrentpriceofgoodyis5.In1971theconsumptionbundlewas(x,y)=(3,5).Thecurrentconsumptionbundleis(x,y)=(9,4).TheLaspeyresindexofcurrentpricesrelativeto1971pricesisclosesttowhichofthefollowingnumbers?

A:1.52B:0.30C:3.36D:2.43

答案:DItfollowsfromtheweakaxiomofrevealedpreferencethatifaconsumerchoosesxwhenhecouldaffordyandchoosesywhenhecouldaffordx;thenhisincomemusthavechangedbetweenthetwoobservations.

A:对B:错

答案:BAtprices(4,12);Harrychoosesthebundle(9,4).Attheprices(8,4);Harrychoosesthebundle(2,9).Isthisbehaviorconsistentwiththeweakaxiomofrevealedpreference?

A:Wewouldhavetoobserveathirdchoicetobeabletosay.B:YesC:NoD:Itdependsonhisincome.

答案:BAstudentspendsallofherincomeonpizzaandbooks.Whenpizzascost$3eachandbookscost$10each,sheconsumed30pizzasand3bookspermonth.Thepriceofpizzasfellto$2.90eachwhilethepriceofbooksroseto$11each.Thepricechange:

A:hadthesameeffectasa$3increaseinherincome.B:leftherexactlyaswelloff

asbefore.C:leftheratleastaswelloff

asbeforeandpossiblyhelpedher.D:madeherworseoff

答案:CIfthebundlexisrevealed(directlyorindirectly)aspreferredtothebundleyandx¹y,thenitisneverthecasethattheyisrevealed(directlyorindirectly)aspreferredtox;sothenecessaryandsufficientconditionforwell-behavedpreferenceis(

)

A:indirectlypreferredB:StrongAxiomofRevealedPreferenceC:RevoveringindifferencecurveD:convexityandmonotonicity

答案:BRevealedpreferenceanalysisteststhebehavioralhypothesisthataconsumerchoosesthemostpreferredbundlefromthoseavailable.Discovertheconsumer'spreferencerelation.

A:错B:对

答案:A

第五章测试

AGiffengoodmustbeaninferiorgood.

A:对B:错

答案:AThecompensateddemandfunctionreferstothedemandfunctionofsomeonewhoisadequatelypaidforwhatheforshesells.

A:错B:对

答案:AInthecaseofhomotheticpreferencestheentirechangeindemandfromapricechangeisduetothesubstitutioneffect.

A:错B:对

答案:AWaltconsidersxandytobeperfectsubstitutes.Theyoriginallycost10and9respectively.Hisincomeis720.Onedaythepriceofxdropsto8.Whichofthefollowingistrue?

A:Thesubstitutioneffectincreasesthequantityofyby80.B:Theincomeeffectincreasesthequantityofyby90．C:Thesubstitutioneffectincreasesthequantityofxby90D:Theincomeeffectincreasesthequantityofxby80.

答案:CSupposethatbananasareanormalgoodandWoodyiscurrentlyconsuming100bananasatapriceof10centseach.

A:HisordinarydemandcurvegoingthroughthispointissteeperthanhisSlutskycompensateddemandcurve.B:HisSlutskycompensateddemandcurvegoingthroughthispointissteeperthanhisordinarydemandcurve.C:HisordinarydemandcurveissteepertotheleftandhisSlutskycompensateddemandcurveissteepertotherightofthispoint.D:Whetherhisordinarydemandcurveorhiscompensateddemandcurveissteeper,dependsonwhetherhispriceelasticityisgreaterthan1.

答案:BJohnpurchasestwogoods,xandy.Goodxisaninferiorgoodforsomerangeofincome.Theremustbeanotherrangeofincomeforwhichgoodxisanormalgood.

A:错B:对

答案:BThefollowingcanbesaidabouttheincomeandsubstitutioneffectsofapriceincreaseonthedemandforthegoodwhosepricerose:

A:Bothcanbeeitherpositiveornegative.B:Theformerisalwayspositiveandthelatterisalwaysnegative.C:Whiletheformerisalwaysnegative,thelattercanbeeitherpositiveornegative.D:Whilethelatterisalwaysnegative,theformercanbeeitherpositiveornegative.

答案:DWhenthepriceofxrises,Marvinrespondsbychanginghisdemandforx.Thesubstitutioneffectisthepartofthischangethatrepresentshischangeindemand:

A:noneofall.B:holdingthepricesofsubstitutesconstant.C:ifhismoneyincomeisheldconstantwhenthepriceofxchanges.D:ifheisallowedtosubstituteasmuchxforyashewishes.

答案:Anonnegativemeans(

)

A:Forsamllchangesinprice,HicksandSlutskydefinitionsforsubstitutioneffectsarenonnegativeB:Ifwehaveanormalgood,thesubtitutioneffectandtheincomeeffectworkinisnonnegative.C:Ifthepriceofagoodgoesup,ifthegoodisanormalgood,thenitisnonnegativeD:Ifpriceofgoodgoesdown,thechangeinthedemandforthegoodduetothesubtitutioneffectmustbenonnegative

答案:Doppositetothatofthepricechange,(

)justlikethesultskysubstitution

effect

A:HickssubstitutioneffectmustbeinadirectionB:SARPisbothanecessaryandasufficientcondition(UnlikeWARP)forwhat?C:HickssubstitutioneffectD:Thesubstitutioneffectis

答案:A

第六章测试

Ifarationalutilitymaximizerisanetdemanderofagood,andifanincreaseinitspricecauseshimtobuymoreofit,thenitmustbeaninferiorgood.

A:错B:对

答案:BIfaconsumerisabuyerofsomegoodsandasellerofothers,thenachangeinpriceswillgenerateanextraincomeeffectintheSlutskyequationduetotherevaluationoftheconsumer'sendowment.

A:错B:对

答案:BIfautilitymaximizerisanetsellerofsomethingandthepriceofthatgoodriseswhileotherpricesstayconstant,hersituationmightimprovesomuchthatshebecomesanetbuyer

A:错B:对

答案:AMarshaMellowisveryflexible.Sheconsumesxandy.Shesays`Givemexorgivemey;Idon'tcare.Ican'ttellthedifferencebetweenthem.'Sheiscurrentlyendowedwith14unitsofxand6unitsofy.Thepriceofxis4timesthepriceofy.Marshacantradexandyatthegoingprices,buthasnoothersourceofincome.HowmanyunitsofywillMarshaconsume?

A:20B:66C:6D:62

答案:DYoraminsistsonconsuming3timesasmuchyasheconsumesofx(sohealwayshasy=3x).Hewillconsumethesegoodsinnootherratio.Thepriceofxis2timesthepriceofy.Yoramhasanendowmentof24x0sand42y0swhichhecantradeatthegoingprices.Hehasnoothersourceofincome.WhatisYoram'sgrossdemandforx?

A:18B:90C:66D:16

答案:AIfleisureisanormalgood,thenanincreaseinnon-laborincomewillreducelaborsupply.

A:错B:对

答案:BMr.Coghas18hoursperdaytodividebetweenlaborandleisure.HisutilityfunctionisU(C,R)=CR;whereCisdollarsperyearspentonconsumptionandRishoursofleisure.Ifhehasanonlaborincomeof40dollarsperdayandawagerateof8dollarsperhour,hewillchooseacombinationoflaborandleisurethatallowshimtospend:

A:184dollarsperdayonconsumption.B:112dollarsperdayonconsumption.C:92dollarsperdayonconsumption.D:82dollarsperdayonconsumption.

答案:CIfAbishagowns12quincesand10kumquats,andifthepriceofkumquatsis3timesthepriceofquinces,howmanykumquatscansheaffordifshebuysasmanykumquatsasshecan?

A:10B:22C:14D:28

答案:CIfAbishagowns16quincesand15kumquats,andifthepriceofkumquatsis4timesthepriceofquinces,howmanykumquatscansheaffordifshebuysasmanykumquatsasshecan?

A:15B:38C:31D:19

答案:DThesharepriceofGrathOiliscurrently$77.06.Severalmonthsago,whenthepricewas$51.21,Charlesbought186sharesofGrathOil.IfhesellsallofhisstockinGrathOiltoday,howmuchprofitwillhemake?→$1,504.17

A:错B:对

答案:A

第七章测试

Consumer'ssurplusisanothernameforexcessdemand.

A:错B:对

答案:ATheequivalentvariationinincomefromataxistheamountofextraincomethataconsumerwouldneedinordertobeaswelloffafterthetaxisimposedashewasoriginally.

A:对B:错

答案:B

Withquasilinearpreferences,theequivalentvariationandthecompensatingvariationinincomeduetoataxarethesame.

A:错B:对

答案:BElla'sutilityfunctionismin{4x,y}.Ifthepriceofxis15andthepriceofyis20,howmuchmoneywouldsheneedtobeabletopurchaseabundlethatshelikesaswellasthebundle(x,y)=(5,8)?

A:235B:92

C:190D:198

答案:CSam'sutilityfunctionisU(x,y)=2x+ywherexisthenumberofx'sheconsumesperweekandyisthenumberofy'sheconsumesperweek.Samhas$200aweektospend.Thepriceofxis4.Samcurrentlydoesn'tconsumeanyy.Samhasreceivedaninvitationtojoinaclubdevotedtoconsumptionofy.Ifhejoinstheclub,Samcangetadiscountonthepurchaseofy.Ifhebelongedtotheclubhecouldbuyyfor$1aunit.HowmuchisthemostSamwouldbewillingtopaytojointhisclub?

A:nothingB:$40aweekC:$50aweekD:$100aweek

答案:DSirPlushasademandfunctionformeadthatisgivenbytheequationD(p)=100-P.Ifthepriceofmeadis75,howmuchisSirPlus'snetconsumersurplus?

A:25B:625C:312.5D:156.25

答案:CSamhasquasilinearpreferencesandhisdemandfunctionforxisD(p)=15-p/3.Thepriceofxisinitially$15perunitandincreasesto$24perunit.Sam'schangeisconsumersurplusistheclosestto:

A:-168B:-27C:-76D:75

答案:CAttheinitialprices,Teodoroisanetsellerofapplesandanetbuyerofbananas.Ifthepriceofapplesdecreasesandthepriceofbananasdoesnotchange:

A:thecompensatingvariationmustbenegativeandtheequivalentvariationpositive.B:boththecompensatingvariationandtheequivalentvariationmustbepositive.C:thecompensatingvariationmustbepositiveandtheequivalentvariationnegative.D:boththecompensatingvariationandtheequivalentvariationmustbenegative.

答案:B(

)isthedifferencebetweenwhatconsumersarewillingandabletopayforagoodandwhattheyactuallypayforthegood.

A:marginalproductB:DemandcurvesC:measuresofcostD:ConsumerSurplus

答案:D(

)depictthevariousquantitiesthatbuyerswouldbewillingandabletopurchaseatdifferentprices

A:AveragecostsB:ConsumersurplusC:FixedcostD:Demandcurves

答案:D

第八章测试

TheinversedemandcurveP(x)foragoodxmeasuresthepriceperunitatwhichthequantityxwouldbedemanded.

A:错B:对

答案:BIfapricechanges,thenchangesinconsumptionattheintensivemarginarechangesthathappenbecauseconsumersaltertheamountsthattheyconsume,butdonoteitherstopconsumingorstartconsumingthegood.

A:错B:对

答案:BIfthedemandfunctionisq=3m=p;wheremisincomeandpisprice,thentheabsolutevalueofthepriceelasticityofdemanddecreasesaspriceincreases.

A:错B:对

答案:AApeckis1/4ofabushel.Ifthepriceelasticityofdemandforbranis-0.2whenbranismeasuredinbushels,thenwhenbranismeasuredinpecks,thepriceelasticityofdemandforbranwillbe:

A:-0.05B:-0.1

C:-0.8

D:Noneofall

答案:DMarginalrevenueisequaltopriceifthedemandcurveishorizontal.

A:对B:错

答案:ATheconstantelasticityofdemandforcigaretteshasbeenestimatedtobe0.5.Toreducesmokingby75%,approximatelyhowmuchtaxneedstobeaddedtoa$1pack?

A:$1.5B:$2.25C:$0.38D:$0.75

答案:AMarketdemandrelevanttoindustrymarketingexpenditureshowinfinity,issaidtobe(

)

A:sharepotentialB:marketpotentialC:productpotentialD:marketdemand

答案:B(

)Occurswhenthequantitydemandedchangeslittleaspricechanges

A:ElasticB:unitelasticC:InelasticD:Fixedcost

答案:CElasticityofDemandmeansameasureofhowresponsiveconsumersaretopricechanges.

A:对B:错

答案:APriceFloormeansalegalminimumpricethatbuyersmustpayforaproduct.

A:对B:错

答案:A

第九章测试

Ifthesupplycurveisvertical,thentheamountsuppliedisindependentofprice.

A:错B:对

答案:BThesupplycurveslopesupandtotheright.Ifthedemandcurveshiftsupwardtoanewcurvewhichiseverywherehigherthantheoldcurve(butpossiblyofdifferentslope)andifthesupplycurvedoesnotshift,thentheequilibriumpriceandquantitymustnecessarilyincrease.

A:错B:对

答案:BAneconomicsituationisParetooptimalonlyifthereisnowaytomakesomeonebetteroff.

A:对B:错

答案:BThedemandforpicklesisgivenbyp=131-2qandsupplyisgivenbyp=5+7q.Whatistheequilibriumquantity?

A:11B:19C:103D:14

答案:DThedemandfunctionforfreshstrawberriesisq=200-5pandthesupplyfunctionisq=60+2p.Whatistheequilibriumprice?

A:50B:10C:40D:20

答案:DIfaquantitytaxiscollectedfromcompetitivesuppliersofagood,placingataxonthegoodcausesthepricepaidbyconsumerstoincreasemorethanifthetaxhadbeencollecteddirectlyfromthebuyers.

A:对B:错

答案:BThedemandfunctionforxisD(p)=65-2pandthesupplyfunctionisS(p)=20+p.Thepricethatshouldbesettorestrictquantitysuppliedto30unitsisclosestto:

A:5B:10C:15D:50

答案:BThedemandfunctionforrentalapartmentsisq=960-7pandthesupplyfunctionisq=160+3p.Thegovernmentmakesitillegaltochargearenthigherthan35.Howmuchexcessdemandwilltherebe?

A:450B:726C:149D:364

答案:A(

)factorsotherthanpricethatlocatethepositionofademandcurve1.consumers'tastes2.ofconsumersinthemarket3.consumers'incomes4.thepricesofrelatedgoods5.expectedpricesSHIFTSthecurve

A:determinantsofdemandB:normalgoodC:determinantsofsupplyD:inferiorgood

答案:Aagood(orservice)whoseconsumptiondeclinesasincomerisesandincreasesasincomedecreases

increaseinincome=decreaseinconsumptiondecreaseinincome=increaseinconsumption

A:normalgoodB:inferiorgoodC:substitutegoodD:pricefloor

答案:B

第十章测试

Theproductionsetofafirmisthesetofallproductsthefirmcanproduce.

A:对B:错

答案:BAproductionisoquantisalocusofcombinationsofinputsthatareequallyprofitable.

A:对B:错

答案:BIfafirmmovesfromonepointonaproductionisoquanttoanotherpointonthesameisoquant,whichofthefollowingwillcertainlyNOThappen?

A:achangeintherateoftechnicalsubstitutionB:achangeintheratioinwhichtheinputsarecombinedC:achangeinthelevelofoutputD:achangeinthemarginalproductsoftheinputs

答案:CInanyproductionprocess,themarginalproductoflaborequals:

A:totaloutputproducedwiththegivenlaborinputs.B:totaloutputdividedbytotallaborinputs.C:thechangeinoutputperunitchangeinlaborinputfor'small'changesintheamountofinput.D:thevalueoftotaloutputminusthecostofthefixedcapitalstock.

答案:CTheproductionfunctionf(x,y)=x+yhasconstantreturnstoscale

A:错B:对

答案:BTheproductionfunctionQ=50K0.75L0.75exhibits

A:increasing,thendiminishingreturnstoscale.B:increasingreturnstoscale.C:decreasingreturnstoscale.D:constantreturnstoscale.

答案:BAfirmhasaproductionfunctionf(x,y)=1:10(x0.20+y0.20)5wheneverx>0andy>0.

A:increasingreturnstoscaleifx+y>1anddecreasingreturnstoscaleotherwise.B:constantreturnstoscale.C:increasingreturnstoscale.D:decreasingreturnstoscale.

答案:C(

)meanstherelationshipbetweentheinputsemployedbyafirmandthemaxoutputitcanproducewiththoseinputs.-Technologyisprocesstoturnintooutproductionfunctionrepresentsfirmstechnology

A:GraphingproductionB:ProductionfunctionC:AveragetotalcostD:constantreturnstoscale

答案:BAtsomepintaddingmoreofavariableinput,suchaslabor,tothesameamountofafixedinput,suchascapital,willcausethemarginalproductofthevariableinputtodecline--MPLcouldbecomenegativeifworkersgotineachother'swaybutnofirmwouldhiretothispoint

A:对B:错

答案:ADoes(

)declineeventuallyasthenumberofworkersincreases

A:MPLB:averagefixedcostC:totalcostD:Minimumefficientscale

答案:A

第十一章测试

Themarginalproductofafactorisjustthederivativeoftheproductionfunctionwithrespecttotheamountofthisfactor,holdingtheamountsofotherfactorinputsconstant.

A:错B:对

答案:BTheweakaxiomofprofitmaximizingbehaviorstatesthatinamodernmixedeconomy,firmshaveonlyaweakincentivetomaximizeprofits.

A:对B:错

答案:BAfixedfactorisafactorofproductionthatisusedinfixedproportiontothelevelofoutput.

A:错B:对

答案:AAcompetitivefirmproducesoutputusingthreefixedfactorsandonevariablefactor.Thefirm'sshortrunproductionfunctionis,wherexistheamountofvariablefactorused.Thepriceofoutputis$3perunitandthepriceofthevariablefactoris$9perunit.Intheshortrun,howmanyunitsofxshouldthefirmuse?

A:20B:80C:40D:19

答案:CAprofit-maximizingcompetitivefirmusesjustoneinput,x.Itsproductionfunctionisq=8x1/2.Thepriceofoutputis16andthefactorpriceis8.Theamountofthefactorthatthefirmdemandsis:

A:10

B:22.63C:64D:48

答案:CJustasinthetheoryofutilitymaximizingconsumers,thetheoryofprofitmaximizingfirmsallowsthepossibilityof"Giffenfactors".Thesearefactorsforwhichafallinpriceleadstoafallindemand.

A:对B:错

答案:BTheproductionfunctionisgivenbyF(L)=6L2/3.Supposethatthecostperunitoflaboris12andthepriceofoutputis6,howmanyunitsoflaborwillthefirmhire?

A:8B:24C:4D:16

答案:AWhenFarmerHoglundappliesNpoundsoffertilizerperacre,themarginalproductoffertilizeris1-(N=200)bushelsofcorn.Ifthepriceofcornis$1perbushelandthepriceoffertilizeris$0.40perpound,thenhowmanypoundsoffertilizerperacreshouldFarmerHoglunduseinordertomaximizehisprofits?

A:240B:64C:120D:248

答案:CAcompetitivefirmproducesoutputusingthreefixedfactorsandonevariablefactor.Thefirm'sshortrunproductionfunctionisq=163x-2x2,wherexistheamountofvariablefactorused.Thepriceofoutputis$3perunitandthepriceofthevariablefactoris$9perunit.Intheshortrun,howmanyunitsofxshouldthefirmuse?

A:19B:40C:80D:20

答案:BWhichofthefollowingisashort-runadjustment?

A:SixnewfirmsentertheplasticsindustryB:ThenumberoffarmsintheUnitedStatesdeclinesby5percentC:BMWconstructsanewassemblyplantinSouthCarolinaD:Alocalbakeryhirestwoadditionalbakers

答案:D

第十二章测试

Aprofitmaximizingdairyfarmiscurrentlyproducing10,000gallonsofmilkperday.Thegovernmentisconsideringtwoalternativepolicies.Oneistogivethefarmalumpsumsubsidyof$500permonth.Theotherpolicyistogivethefarmasubsidyof$.05pergallonofoutput.

A:Bothkindsofsubsidywillincreaseproductionatthisfarm.B:Whichsubsidyhasthegreatereffectonproductionatthisfarmdependsonwhetherfixedcostsaregreaterthanvariablecosts.C:Neithersubsidywillaffectproductionatthisfarm,sinceoutputisdeterminedbyprofitmaximization.D:Productionatthisfarmwillbeincreasediftheperunitsubsidyisadopted,butnotifthelump-sumsubsidyisadopted.E:Productionwillbeincreasedbyeitherkindofsubsidyifandonlyiftherearenotdecreasingreturnstoscale.

答案:DThecostfunctionc(w1,w2,y)expressesthecostperunitofoutputofproducingyunitsofoutputifequalamountsofbothfactorsareused.

A:错B:对

答案:AIfitcosts$10tosetupandlatercleanabagelpressandbagelscost$1perweek,perbagel,tostore,howmanytimesshouldthebagelpressberuneachweektoproduce500bagelsaweektobesoldcontinuously?

A:3times.B:Once.C:4timesD:Twice

答案:AIfoutputisproducedaccordingtoQ=4LK,thepriceofKis$10,andthepriceofLis$10,thenthecostminimizingcombinationofKandLcapableofproducing16unitsofoutputis

A:L=2andK=2B:L=4andK=1C:L=1andK=1D:L=8andK=8

答案:ATheaveragevariablecostcurvemustalwaysbeUshaped.

A:对B:错

答案:BThemarginalcostcurvepassesthroughtheminimumpointoftheaveragefixedcostcurve.

A:对B:错

答案