雨课堂学堂在线学堂云《Business Economics( 江财)》单元测试考核答案

注：不含主观题第1题单选题(1分)

ARollingStonessonggoes:

"Youcan'talwaysgetwhatyouwant."

Thisechoesanimportantthemefrommicroeconomics.

Whichofthefollowingstatementsisthebestexampleofthistheme?

A

Consumersmustmakethebestpurchasingdecisionstheycan,giventheirlimitedincomes.

BWorkersdonothaveasmuchleisureastheywouldlike,giventheirwagesandworkingconditions.CWorkersinplannedeconomies,suchasNorthKorea,donothavemuchchoiceoverjobs.

DFirmsinmarketeconomieshavelimitedfinancialresources.

第2题单选题(1分)Usethefollowingtwostatementstoanswerthisquestion:

I.

Economictheoriesaredevelopedtoexplainobservedphenomenabydeducingfromasetofbasicrulesandassumptions.

II.Economictheoriesusevaluejudgmentstodeterminewhichpeopleoughttopaymoretaxes.

ABothIandIIaretrueB

Iistrue,andIIisfalse.CIisfalse,andIIistrue.

DBothIandIIarefalse.

1.2thescopeofeconomics第1题单选题(1分)

Whichofthefollowingstatementsisfalse?

Aneconomicanalysisofcarbontaxescan:

A

calculatetheincreaseincostsfacedbycoal-usingindustries.

BpredicttheeffectonunemploymentinWestVirginiacoalminingcommunities.

Ccomparethelikelyreductionsinmedicalexpendituresondiseasescausedbysmog.

Dpresentatrade-offofthecostsandbenefitsofdifferentlevelsofcarbontaxes.

Econcludethatsuchtaxesshouldbeimposedtobenefitfuturegenerations.正确答案：E第2题单选题(1分)WhichofthefollowingstatementsisNOTtrue?AIfaneconomictheoryisproventobeuntrue,thenitmustbediscarded.BIfaneconomictheoryisproventobeuntrue,thenitmaybemodifiedordiscarded.CEconomictheoriesprovidethebasisformakingpredictions.DEconomicmodelsarespecificrepresentationsofeconomictheories.1.3thekeyideasfortheeconomicwayofthinking第1题单选题(1分)

Economicsisabouttheallocationofscarceresources.

WhichofthefollowingisNOTanexampleofeconomicscarcity?

A

IfStevegoestoseeamovieonSaturday,hewillnotbeabletoaffordbuyingicecream.

B

IfJennystudiesforhereconomicsquizthisevening,shewillnothavetimetowalkherdog.

CIfGeneralMotorsincreasesitsproductionofSUVsthisyear,itwillhavetospendmoreonadvertising.

DIfBarnesandNoblebookstoreincreasesthenumberoftitlesitcarries,itwillhavetoreallocateshelfspacetoaccommodatethe第2题单选题(1分)

Firmsfacetrade-offsinproduction,includingdecisionsrelatedto:Awhichproductstoproduce.B

howmuchofaparticularproducttoproduce.Cthebestwaytoproduceagivenamountofoutput.Dalloftheabove1.4Economicsassocialscienceandpolicytool第1题单选题(1分)Whichofthefollowingisapositivestatement?

AIntermediatemicroeconomicsshouldberequiredofalleconomicsmajorsinordertobuildasolidfoundationineconomictheory.

BTheminimumwageshouldnotbeincreasedbecausethisactionwouldincreaseunemployment.

CSmokingshouldberestrictedonallairlineflights.

DAllautomobilepassengersshouldberequiredtowearseatbeltsinordertoprotectthemagainstinjury.

Enoneoftheabove

正确答案：E第2题单选题(1分)Whichofthefollowingisanormativestatement?

AThetaxespaidbythepoorshouldbereducedinordertoimprovetheincomedistributionintheU.S.

BStategovernmentsshouldnotsubsidizecorporationsbytrainingwelfarerecipients.

CPresidentialcandidatesshouldnotbegivenfundsfromthefederalgovernmenttoruncampaigns.

DTheseaottershouldnotbeallowedtospreadintoSouthernCaliforniacoastalwaters,becauseitwillreducethevalueoffisheries.

Ealloftheabove

正确答案：E2.1ProductionPossibilitiesandOpportunityCost第1题单选题(1分)Theproductionpossibilitiesfrontier

Areferstothetechnologyusedinsuch1.goodsascomputersandmilitaryaircraft.

BonceappliedtoU.S.technologybutnowreferstoJapanesetechnology.

Cmarkstheboundarybetweenattainablecombinationsofgoodsandservicesandunattainablecombinations.

Disalsocalledthesupplycurve.第2题单选题(1分)Theproductionpossibilitiesfrontieristheboundarybetween

Athosecombinationsofgoodsandservicesthatcanbeproducedandthosethatcanbeconsumed.

Bthoseresourcesthatarelimitedandthosethatareunlimited.

Cthosecombinationsofgoodsandservicesthatcanbeproducedandthosethatcannot.

Dthosewantsthatarelimitedandthosethatareunlimited.

2.2UsingResourcesEfficiently第1题单选题(1分)Marginalcostcurvesgenerallyslope

Aupwardbecauseofincreasingopportunitycost.

Bupwardbecauseofdecreasingopportunitycost.

Cdownwardbecauseofincreasingopportunitycost.

Ddownwardbecauseofdecreasingopportunitycost.

第2题单选题(1分)Marginalbenefitcurvesgenerallyslope

Aupwardbecauseofincreasingopportunitycost.

Bupward,butnotbecauseofincreasingopportunitycost.

Cdownwardbecauseofincreasingopportunitycost.

Ddownward,butnotbecauseofincreasingopportunitycost.

2.3EconomicGrowth第1题单选题(1分)Anexpansionoftheproductionpossibilitiesfrontieris

Acalledeconomicgrowth.

Bproofthatscarcityisnotabindingconstraint.

Cafreegiftofnature.

Dsomethingthathasoccurredonlyrarelyinhistory.

第2题单选题(1分)EconomicgrowthistheresultofallofthefollowingEXCEPT

Atechnologicalchange.

Bcapitalaccumulation.

Copportunitycost.

Dinvestmentinhumancapital.

2.4EconomicCoordination第1题单选题(1分)Thesocialarrangementsthatgoverntheownership,use,anddisposalofpropertyarereferredtoas

Athedoublecoincidenceofwants.

Bcapitalism.

Cprivateenterprise.

Dpropertyrights.

第2题单选题(1分)Inmarkets,people'sdecisionsarecoordinatedbyAspecializationaccordingtoabsoluteadvantage.

Bchangesinpropertyrights.

Clearning-by-doing.

Dadjustmentsinprices.

3.1DefinitionofDemand第1题单选题(1分)Zhang'sdemandforbread

AZhangboughtbreadBZhangboughtpancakesinsteadofbreadCWhenthebreadissoldfor1yuaneach,Zhangisreadytobuy4withhisexistingincome,whilewheneachis2yuan,heisreadytobuy1DZhangisgoingtobuy10,buthedidn'tbringenoughmoneyENoneoftheaboveindicatesdemand第2题单选题(1分)

Duetotherecentincreaseinthepriceofnaturalgas,thequantityofcoaldemandedbyelectricpowergenerationplantshasincreased.

Basedonthisinformation,coalandnaturalgasare:Acomplements.Bsubstitutes.Cindependentgoods.Dnoneoftheabove3.2ChangesofDemand第1题单选题(1分)Whichofthefollowingwouldshiftthedemandcurvefornewtextbookstotheright?

AAfallinthepriceofpaperusedinpublishingtextsBAfallinthepriceofequivalentusedtextbooksCAnincreaseinthenumberofstudentsattendingcollegeDAfallinthepriceofnewtextbooks.第2题单选题(1分)YouareanalyzingthedemandforgoodX.

WhichofthefollowingwillresultinashifttotherightofthedemandcurveforX?

AAdecreaseinthepriceofXBAnincreaseinthepriceofagoodthatisacomplementtogoodXCAnincreaseinthepriceofagoodthatisasubstituteforXDalloftheabove

3.3DefinitionofSupply第1题单选题(1分)Asupplycurvereveals:

Athequantityofoutputconsumersarewillingtopurchaseateachpossiblemarketprice.

Bthedifferencebetweenquantitydemandedandquantitysuppliedateachprice.

Cthemaximumlevelofoutputanindustrycanproduce,regardlessofprice.

Dthequantityofoutputthatproducersarewillingtoproduceandsellateachpossiblemarketprice.

第2题单选题(1分)Whendrawingthecottonsupplycurve,whichofthefollowingfactorsdoesnotremainconstant?AtechnicallevelBfertilityofsoilCcottonplantingareaDpriceofcotton

3.4ChangesofSupply第1题单选题(1分)Whenanindustry'srawmaterialcostsincrease,otherthingsremainingthesame,

Athesupplycurveshiftstotheleft.

Bthesupplycurveshiftstotheright.

Coutputincreasesregardlessofthemarketpriceandthesupplycurveshiftsupward.

Doutputdecreasesandthemarketpricealsodecreases.

第2题单选题(1分)Whichofthefollowingeventswillcausealeftwardshiftinthesupplycurveofgasoline?

AAdecreaseinthepriceofgasolineBAnincreaseinthewagerateofrefineryworkersCDecreaseinthepriceofcrudeoilDAnimprovementinoilrefiningtechnologyEalloftheabove

3.5MarketEquilibrium第1题单选题(1分)Whenthecurrentpriceisabovethemarket-clearinglevelwewouldexpect:Aquantitydemandedtoexceedquantitysupplied.

Bquantitysuppliedtoexceedquantitydemanded.

Cashortage.

Dgreaterproductiontooccurduringthenextperiod.

第2题单选题(1分)Assumethatthecurrentmarketpriceisbelowthemarketclearinglevel.

Wewouldexpect:

Aasurplustoaccumulate.

Bdownwardpressureonthecurrentmarketprice.

Cupwardpressureonthecurrentmarketprice.

Dlowerproductionduringthenexttimeperiod.

4.1priceelasticityofdemand第1题单选题(1分)Thepriceelasticityofdemandforademandcurvethathasazeroslopeis

Azero.

Bone.

Cnegativebutapproacheszeroasconsumptionincreases.

Dinfinity.

第2题单选题(1分)Elasticitymeasures

Atheslopeofademandcurve.

Btheinverseoftheslopeofademandcurve.

Cthepercentagechangeinonevariableinresponsetoaonepercentincreaseinanothervariable.

Dsensitivityofpricetoachangeinquantity.

4.2otherfactors第1题单选题(1分)Alonganydownwardslopingstraight-linedemandcurve:

Aboththepriceelasticityandslopevary.

Bthepriceelasticityvaries,buttheslopeisconstant.

Ctheslopevaries,butthepriceelasticityisconstant.

Dboththepriceelasticityandslopeareconstant.

第2题单选题(1分)Supposethemarketpriceforwheatchanges,andwemovefrompointAtopointBonthewheatdemandcurve.

Ifthepriceelasticityofwheatdemandwas-0.3atpointAand-0.4atpointB,whatisaplausiblevalueforthearcelasticityofdemandforwheatbetweenpointsAandB?A

-0.25B-0.35C-0.45D-0.704.3incomeelasticityandcrosselasticity-第1题单选题(1分)Theincomeelasticityofdemandisthe

Aabsolutechangeinquantitydemandedresultingfromaoneunitincreaseinincome.

Bpercentchangeinquantitydemandedresultingfromtheabsoluteincreaseinincome.

Cpercentchangeinquantitydemandedresultingfromaonepercentincreaseinincome.

Dpercentchangeinincomeresultingfromaonepercentincreaseinquantitydemanded.

Epercentchangeinincomeresultingfromaonepercentincreaseinprice.

第2题单选题(1分)Thecross-priceelasticitybetweenapairofcomplementarygoodswillbe

Apositive.

Bnegative.

CzeroDpositiveorzerodependinguponthestrengthoftherelationship4.4elasticityofsupply第1题单选题(1分)Inordertoincreasethefiscalrevenue,thegovernmentdecidedtotaxtheselleraccordingtothesalesvolume.Ifthegovernmentwantsthetaxburdentobebornebythebuyeranddoesnotaffectthetransactionvolumeasmuchaspossible,theconditionsthatshouldbemetare

AthepriceelasticityofdemandandsupplyisgreaterthanzeroandlessthaninfinityBthepriceelasticityofdemandisgreaterthanzeroandlessthaninfinity,andthepriceelasticityofsupplyisequaltozeroCthepriceelasticityofdemandisequaltozero,andthepriceelasticityofsupplyisgreaterthanzeroandlessthaninfinityDthepriceelasticityofdemandisinfinite,andthepriceelasticityofsupplyisequaltozero第2题单选题(1分)SupposetheUSdemandcurveforgasolineshiftsrightward,andtheU.S.supplycurveforgasolineremainsunchanged.

Asaresult,thepriceofgasolineincreasesby9percent,andtheequilibriumquantityincreasesby3percent.

Whichofthefollowingstatementsistruebasedonthisinformation?AThepriceelasticityofsupplyforgasolineisroughly0.33.BThepriceelasticityofsupplyforgasolineisroughly3.CThepriceelasticityofdemandforgasolineisroughly0.33.DThepriceelasticityofdemandforgasolineisroughly-3.5.1Thealternativemethodsforallocatingscarceresources第1题单选题(1分)TheresourceallocationmethodthatisusedtoallocatescarceresourcesbetweenprivateuseandpublicuseisAfirst-come,first-served.Bpersonalcharacteristics.Cmajorityrule.Dmarketprice.第2题单选题(1分)Somerecentdevelopmentsinfinancialresearchfocusonwaystomakeportfolioallocationsandotherinvestmentdecisionsinwaysthatlargelyignorethepossiblegainsbutprotectagainstlargelosses.

Thesetoolsaredesignedtoreflect________behavioramonginvestors.AriskneutralBsubstitutionClossaversionDanchoring5.2ConsumerSurplusandProducerSurplus第1题单选题(1分)Thedifferencebetweenwhataconsumeriswillingtopayforaunitofagoodandwhatmustbepaidwhenactuallybuyingitiscalled

Aproducersurplus.

Bconsumersurplus.

Ccostbenefitanalysis.

Dnetutility.

第2题单选题(1分)Inthelongrun,afirm'sproducersurplusisequaltothe

Aeconomicrentitenjoysfromitsscarceinputs.

Brevenueitearnsinthelongrun.

Cpositiveeconomicprofititearnsinthelongrun.

Ddifferencebetweentotalrevenueandtotalvariablecosts.

Edifferencebetweentotalrevenueandtotalfixedcosts.

5.3MarketEfficiency第1题单选题(1分)Thestatement:

"Ifeveryonetradesinthecompetitivemarketplace,allmutuallybeneficialtradeswillbecompleted,andtheresultingequilibriumallocationofresourceswillbeeconomicallyefficient."isformallyknownas:

Athelawofsupplyanddemand.

Bthefirsttheoremofsupplyanddemand.

Cthefirsttheoremofwelfareeconomics.

Dthefirsttheoremofefficiencyineconomics.

第2题单选题(1分)InanEdgeworthbox,allpointsofefficiencyoccuratthe

Aintersectionsoftheindifferencecurves.Bthepointsoftangencybetweenthesetsofindifferencecurves.

Cinthemidpointofthediagram.

Datanypointotherthantheintersectionsoftheindifferencecurves.

5.4MarketFairness第1题单选题(1分)Usingthe"It'snotfairiftheresultisn'tfair"principleoffairness,anincometaxdesignedtotransferwealthfromtherichtothepoorAincreasesefficiencyandequity.Bincreasesefficiencyanddoesnotaffectequity.Cdecreasesefficiencyandincreasesequity.Ddecreasesefficiencyandequity.第2题单选题(1分)UtilitarianismarguesthatAonlyequalitybringsefficiency.Bthereisatradeoffbetweenequalityandefficiency.Ctheresultisfairiftherulesarefair.Dthecompetitivemarketisfair.6.1Housingmarket第1题单选题(1分)Apriceceilingisaprice

Abelowwhichasellercannotlegallysell.

Babovewhichasellercannotlegallysell.

Cthatcreatesasurplusofthegood.

DBothanswersAandCarecorrect.

第2题单选题(1分)Aprice________isaregulated________thatmustbesetbelowtheequilibriumpricetohaveaneffect.

Afloor;price

Bfloor;quantity

Cceiling;price

Dceiling;quantity

6.2LabormarketandTaxes第1题单选题(1分)Apricefloorisaprice

Abelowwhichasellercannotlegallysell.

Babovewhichasellercannotlegallysell.

Cthatcreatesasurplusofthegoodifitissetabovetheequilibriumprice.

DBothanswersAandCarecorrect.

第2题单选题(1分)Asalestaxisimposedonthesellersofgasoline.Thistaxshifts

Athesupplyofgasolinecurveleftward.

Bthesupplyofgasolinecurverightward.

Cthedemandforgasolinecurveleftward.

Dboththesupplycurveofgasolineanddemandcurveforgasolineleftward.

6.3Quotasandsubsidies第1题单选题(1分)Governmentsofteninterveneinagriculturalmarketsby

Agrantingsubsidies.

Bsettingproductionquotasthatwillincreaseproduction.

Csettingpricefloorsthatreducepricesforbuyers.

Dimposingheavytaxesonfarmproducts.

第2题单选题(1分)Ifaproductionquotaissetbelowtheequilibriumquantity,atthequotaquantity,marginalbenefitis________marginalcostandthelevelofproductionis________.

Agreaterthan;inefficient

Bgreaterthan;efficient

Clessthan;inefficient

Dequalto;efficient

6.4Globalmarkets第1题单选题(1分)Acountryengagingintradeaccordingtotheprinciplesofcomparativeadvantagegainsfromtradebecauseit

Aisproducingexportswhileoutsourcingservices.

Bisproducingimportsindirectlymoreefficientlythanitcoulddomestically.

Cisproducingimportsindirectlyusingfewerlaborunits.

Disproducingexportsusingfewerlaborunits.

Eisproducingexportsindirectlymoreefficientlythanitcouldalternatively.

第2题单选题(1分)TheUnitedStatesislessdependentontradethanmostothercountriesbecause

AthemilitarypoweroftheUnitedStatesmakesitlessdependentonanything.

BtheUnitedStatesisarelativelylargecountrywithdiverseresources.

CtheUnitedStatesisa"Superpower."

DtheUnitedStatesinvestsinmanyothercountries.

EmanycountriesinvestintheUnitedStates.

6.5InternationalTradeRestrictions第1题单选题(1分)Inthecountrylevyingthetariff,thetariffwill

Aincreaseconsumersurplusanddecreaseproducersurplus.

Bdecreaseconsumersurplusbutleaveproducerssurplusunchanged.

Cdecreaseboththeconsumerandproducersurplus.

Ddecreaseconsumersurplusandincreaseproducersurplus.

Eincreasebothconsumerandproducersurplus.

第2题单选题(1分)SupposetheUnitedStateseliminatesitstariffonballbearingsusedinproducingexports.BallbearingpricesintheUnitedStateswouldbeexpectedto

Aincrease,andtheforeigndemandforU.S.exportswoulddecrease.

Bdecrease,andtheforeigndemandforU.S.exportswoulddecrease.

Cdecrease,andtheforeigndemandwouldbeunchanged.

Ddecrease,andtheforeigndemandforU.S.exportswouldincrease.

Eincrease,andtheforeigndemandforU.S.exportswouldincrease.

7.1ConsumptionChoices第1题单选题(1分)Aperson'sconsumptionpossibilitiesisdefinedbythebudgetlinebecauseAitmarkstheboundarybetweenwhatisaffordableandunaffordable.Bitrepresentstheindividual'spreferencefordifferentcombinationsofgoods.Citmarkstheboundarybetweenwhatcanbeproducedandwhatisunattainablegiventhecurrentstateoftechnologyandresources.Dallconsumersmustconsumeontheirbudgetline.第2题单选题(1分)TotalutilitydescribesAthebenefitgainedfromallconsumption.Banincreaseinconsumptionmultipliedbythegaininutility.Ctotalconsumptionmultipliedbymarginalutility.Dtotalconsumptiondividedbymarginalutility.7.2Utility-MaximizingChoices第1题单选题(1分)Withagivenincomeandpricesofgoods,MarcuswillbeinaconsumerequilibriumifAhismarginalutilityfromallgoodsisthesameBhepurchasesthesameamountsofallgoodsChemaximizeshistotalutilityDhismarginalutilityfromallgoodsisatitsmaximum第2题单选题(1分)Ifthepriceofagoodincreases,allelsethesame,thentheconsumer'stotalutilitywillAincrease.Bdecrease.Cremainthesameasconsumptionshiftstocheapergoods.Ddecreaseiftherearenosubstitutesforthegoodandremainthesameiftherearesubstitutesforthegood.7.3PredictionsofMarginalUtilityTheory第1题单选题(1分)MarginalutilitytheoryisusedinthederivationoftheAnegativeslopeofdemandcurves.Bnegativeslopeofsupplycurves.Cpositiveslopeofdemandcurves.Dpositiveslopeofsupplycurves.第2题单选题(1分)Teddybuysonlychocolatechipcookiesandhotchocolateandspendsallofhisincomeonthetwoitems.Supposethepriceofacookierises.Accordingtomarginalutilitytheory,TeddybuysAmorecookies.Bfewercookies.Cmorehotchocolate.Danequalamountofcookiesandhotchocolate.8.1PossibilitiesandtheBudgetEquation第1题单选题(1分)Mikeyisverypickyandinsiststhathismommakehisbreakfastwithequalpartsofcerealandapplejuice—anyothercombinationanditendsuponthefloor.

Cerealcosts4centspertablespoonandapplejuicecosts6centspertablespoon.

IfMikey'smombudgets$8permonthforMikey'sbreakfast,howmuchcerealandjuicedoesshebuy?

A40tablespoonseachofcerealandjuiceB80tablespoonseachofcerealandjuiceC40tablespoonsofcerealand75tablespoonsofjuiceD100tablespoonsofcerealand67tablespoonsofjuice第2题单选题(1分)Whichofthefollowingwouldcauseaparallelshiftofthebudgetline?

AanchangeinmoneyincomeBthepriceofamovieincreasesCthepriceofamoviedecreasesDthepriceofasodaincreases8.2PreferenceandIndifferenceCurve第1题单选题(1分)Acurvethatrepresentsallcombinationsofmarketbasketsthatprovidethesamelevelofutilitytoaconsumeriscalled:

Aabudgetline.

Banisoquant.

Canindifferencecurve.

Dademandcurve.

Enoneoftheabove

第2题单选题(1分)Theslopeofanindifferencecurvereveals:

Athatpreferencesarecomplete.

Bthemarginalrateofsubstitutionofonegoodforanothergood.

Ctheratioofmarketprices.

Dthatpreferencesaretransitive.

Enoneoftheabove

8.3BestAffordableChoice第1题单选题(1分)AconsumermaximizessatisfactionatthepointwherehisvaluationofgoodX,measuredastheamountofgoodYhewouldwillinglygiveuptoobtainanadditionalunitofX,equals:

Athemagnitudeoftheslopeoftheindifferencecurvethroughthatpoint.

Boneoverthemagnitudeoftheslopeoftheindifferencecurvethroughthatpoint.

CPx/Py

DPy/Px

第2题单选题(1分)Thepriceoflemonadeis0.50;thepriceofpopcornis1.00.

IfFredhasmaximizedhisutilitybypurchasinglemonadeandpopcorn,hismarginalrate

substitutionwillbe:

A2lemonadesforeachpopcorn.

B1lemonadesforeachpopcorn.

C1/2lemonadeforeachpopcorn.

DindeterminateunlessmoreinformationonFred'smarginalutilitiesisprovided.

8.4SubstitutionEffectandIncomeEffect第1题单选题(1分)Sueviewshotdogsandhotdogbunsasperfectcomplementsinherconsumption,andthecornersofherindifferencecurvesfollowthe45-degreeline.

Initially,thepriceofhotdogsis3perpackage(8hotdogs),thepriceofbunsis3perpackage(8hotdogbuns),andSue'sbudgetis48permonth.Howdoesheroptimalconsumptionbundlechangeifthepriceofhotdogbunsincreasesto5perpackage?ASuedoesnotchangeherconsumptionbecausethesegoodsareperfectcomplements.BShebuysthesameamountofhotdogbunsandbuysmorehotdogs.CShebuysthesameamountofhotdogsandbuystwolesspackagesofhotdogbuns.DShereducesherconsumptionby2packagesofhotdogsand2packagesofhotdogbuns.第2题单选题(1分)Sueviewshotdogsandhotdogbunsasperfectcomplementsinherconsumption,andthecornersofherindifferencecurvesfollowthe45-degreeline.

Supposethepriceofhotdogsis5perpackage(8hotdogs),thepriceofbunsis3perpackage(8hotdogbuns),andSue'sbudgetis$48permonth.

Whatisheroptimalchoiceunderthisscenario?A8packagesofhotdogsand6packagesofbunsB8packagesofhotdogsand8packagesofbunsC6packagesofhotdogsand6packagesofbunsD6packagesofhotdogsand8packagesofbuns9.1firmanditseconomicproblem第1题单选题(1分)ThedifferencebetweentheeconomicandaccountingcostsofafirmareAtheaccountant'sfees.Bthecorporatetaxesonprofits.Ctheopportunitycostsofthefactorsofproductionthatthefirmowns.Dthesunkcostsincurredbythefirm.Etheexplicitcostsofthefirm.第2题单选题(1分)Whichofthefollowingstatementscorrectlyusestheconceptofopportunitycostindecisionmaking?

I.

"Becausemysecretary'stimehasalreadybeenpaidfor,mycostoftakingonanadditionalprojectislowerthanitotherwisewouldbe."

II."SinceNASAisrunningunderbudgetthisyear,thecostofanotherspaceshuttlelaunchislowerthanitotherwisewouldbe."AIistrue,andIIisfalse.

BIisfalse,andIIistrue.

CIandIIarebothtrue.

DIandIIarebothfalse.

9.2Firm’sDecisions第1题单选题(1分)Afunctionthatindicatesthemaximumoutputperunitoftimethatafirmcanproduce,foreverycombinationofinputswithagiventechnology,iscalled

Aanisoquant.

Baproductionpossibilitycurve.

Caproductionfunction.

Danisocostfunction.

第2题单选题(1分)Whichoffollowingisakeyassumptionofaperfectlycompetitivemarket?

AFirmscaninfluencemarketprice.BCommoditieshavefewsellers.

CItisdifficultfornewsellerstoenterthemarket.

DEachsellerhasaverysmallshareofthemarket.

Enoneoftheabove

9.3Firm’sOutput第1题单选题(1分)Thelawofdiminishingreturnsreferstodiminishing

Atotalreturns.

Bmarginalreturns.

Caveragereturns.

Dallofthese.

第2题单选题(1分)Whenlaborusageisat12units,outputis36units.Fromthiswemayinferthat

Athemarginalproductoflaboris3.Bthetotalproductoflaboris1/3.

Ctheaverageproductoflaboris3.

Dnoneoftheabove

9.4firm'scostIintheshortrun第1题单选题(1分)Usethefollowingtwostatementstoanswerthisquestion:I.Theaveragetotalcostofagivenlevelofoutputistheslopeofthelinefromtheorigintothetotalcostcurveatthatlevelofoutput.

II.Themarginalcostofagivenlevelofoutputistheslopeofthelinethatistangenttothevariablecostcurveatthatlevelofoutput.

ABothIandIIaretrue.

BIistrue,andIIisfalse.

CIisfalse,andIIistrue.

DBothIandIIarefalse.

第2题单选题(1分)Inashort-runproductionprocess,themarginalcostisrisingandtheaveragetotalcostisfallingasoutputisincreased.

Thus,marginalcostis

Abelowaveragetotalcost.

Baboveaveragetotalcost.

Cbetweentheaveragevariableandaveragetotalcostcurves.

Dbelowaveragefixedcost.

9.5firm'scostIIinthelongrun第1题单选题(1分)Thetotalcostofproducingagivenlevelofoutputis

Amaximizedwhenacornersolutionexists.

Bminimizedwhentheratioofmarginalproducttoinputpriceisequalforallinputs.

Cminimizedwhenthemarginalproductsofallinputsareequal.

Dminimizedwhenmarginalproductmultipliedbyinputpriceisequalforallinputs.

第2题单选题(1分)Supposethatthepriceoflabor(PL)is10andthepriceofcapital(PK)is20.

Whatistheequationoftheisocostlinecorrespondingtoatotalcostof$100?

APL+20PK

B100=10L+20K

C100=30(L+K)

D100+30(PL+PK)Enoneoftheabove

10.1WhatisPerfectCompetition?第1题单选题(1分)Usethefollowingstatementstoanswerthisquestion:I.Marketsthathaveonlyafewsellerscannotbehighlycompetitive.II.Marketswithmanysellersarealwaysperfectlycompetitive.AIandIIaretrue.BIistrueandIIisfalse.CIIistrueandIisfalse.DIandIIarefalse.第2题单选题(1分)Firmsoftenusepatentrightsasa:Abarriertoexit.Bbarriertoentry.Cwaytoachieveperfectcompetition.Dnoneoftheabove10.2TheFirm’sOutputDecision第1题单选题(1分)Afirmmaximizesprofitbyoperatingatthelevelofoutputwhere

Aaveragerevenueequalsaveragecost.

Baveragerevenueequalsaveragevariablecost.

Ctotalcostsareminimized.

Dmarginalrevenueequalsmarginalcost.

Emarginalrevenueexceedsmarginalcostbythegreatestamount.

第2题单选题(1分)WhentheTRandTCcurveshavethesameslope,

Atheyarethefurthestfromeachother.

Btheyareclosesttoeachother.

Cthe