经济学原理对应练习-05Word文档格式.doc
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TOP:
Elasticity MSC:
Definitional
2. Whenstudyinghowsomeeventorpolicyaffectsamarket,elasticityprovidesinformationonthe
a. directionoftheeffectonthemarket.
b. magnitudeoftheeffectonthemarket.
c. speedofadjustmentofthemarketinresponsetotheeventorpolicy.
d. numberofmarketparticipantswhoaredirectlyaffectedbytheeventorpolicy.
B PTS:
2 REF:
Interpretive
3. Howdoestheconceptofelasticityallowustoimproveuponourunderstandingofsupplyanddemand?
a. Elasticityallowsustoanalyzesupplyanddemandwithgreaterprecisionthanwouldbethecaseintheabsenceoftheelasticityconcept.
b. Elasticityprovidesuswithabetterrationaleforstatementssuchas“anincreaseinxwillleadtoadecreaseiny”thanwewouldhaveintheabsenceoftheelasticityconcept.
c. Withoutelasticity,wewouldnotbeabletoaddressthedirectioninwhichpriceislikelytomoveinresponsetoasurplusorashortage.
d. Withoutelasticity,itisverydifficulttoassessthedegreeofcompetitionwithinamarket.
A PTS:
4. Elasticityimprovesourunderstandingofsupplyanddemandbyadding
a. measuresofequity.
b. measuresofefficiency.
c. aquantitativeelementtoouranalysis.
d. aqualitativeelementtoouranalysis.
C PTS:
5. Thepriceelasticityofdemandmeasureshowmuch
a. quantitydemandedrespondstoachangeinprice.
b. quantitydemandedrespondstoachangeinincome.
c. pricerespondstoachangeindemand.
d. demandrespondstoachangeinsupply.
5-1
Priceelasticityofdemand MSC:
6. Thepriceelasticityofdemandmeasures
a. buyers’responsivenesstoachangeinthepriceofagood.
b. theextenttowhichdemandincreasesasadditionalbuyersenterthemarket.
c. howmuchmoreofagoodconsumerswilldemandwhenincomesrise.
d. themovementalongasupplycurvewhenthereisachangeindemand.
7. Demandissaidtobeelasticif
a. thepriceofthegoodrespondssubstantiallytochangesindemand.
b. demandshiftssubstantiallywhenincomeortheexpectedfuturepriceofthegoodchanges.
c. buyersdonotrespondmuchtochangesinthepriceofthegood.
d. buyersrespondsubstantiallytochangesinthepriceofthegood.
Elasticdemand MSC:
Definitional
8. Demandissaidtobeinelasticif
a. buyersrespondsubstantiallytochangesinthepriceofthegood.
b. demandshiftsonlyslightlywhenthepriceofthegoodchanges.
c. thequantitydemandedchangesonlyslightlywhenthepriceofthegoodchanges.
d. thepriceofthegoodrespondsonlyslightlytochangesindemand.
Inelasticdemand MSC:
9. Ifdemandisinelastic,then
a. buyersdonotrespondmuchtoachangeinprice.
b. buyersrespondsubstantiallytoachangeinprice,buttheresponseisveryslow.
c. buyersdonotaltertheirquantitiesdemandedmuchinresponsetoadvertising,fads,orgeneralchangesintastes.
d. thedemandcurveisveryflat.
10. Whenquantitydemandedrespondsstronglytochangesinprice,demandissaidtobe
a. fluid.
b. elastic.
c. dynamic.
d. highlyvariable.
11. Whichofthefollowingstatementsaboutthepriceelasticityofdemandiscorrect?
a. Thepriceelasticityofdemandforagoodmeasuresthewillingnessofbuyersofthegoodtomoveawayfromthegoodasitspriceincreases.
b. Priceelasticityofdemandreflectsthemanyeconomic,psychological,andsocialforcesthatshapeconsumertastes.
c. Otherthingsequal,ifgoodxhasclosesubstitutesandgoodydoesnothaveclosesubstitutes,thenthedemandforgoodxwillbemoreelasticthanthedemandforgoody.
d. Alloftheabovearecorrect.
12. Foragoodthatisanecessity,
a. quantitydemandedtendstorespondsubstantiallytoachangeinprice.
b. demandtendstobeinelastic.
c. thelawofdemandoftendoesnotapply.
13. Foragoodthatisaluxury,demand
a. tendstobeinelastic.
b. tendstobeelastic.
c. hasunitelasticity.
d. cannotberepresentedbyademandcurveintheusualway.
14. Ifapersononlyoccasionallybuysacupofcoffee,hisdemandforcoffeeisprobably
a. representedbyaverticalornearly-verticaldemandcurve.
b. noteasilyrepresentedbyademandscheduleordemandcurve.
c. inelastic.
d. elastic.
5-2
15. Apersonwhotakesaprescriptiondrugtocontrolhighcholesterolmostlikelyhasademandforthatdrugthatis
a. inelastic.
b. unitelastic.
c. elastic.
d. highlyresponsivetochangesinincome.
16. Otherthingsequal,thedemandforagoodtendstobemoreinelastic,the
a. fewertheavailablesubstitutes.
b. longerthetimeperiodconsidered.
c. morethegoodisconsideredaluxurygood.
d. morenarrowlydefinedisthemarketforthegood.
Interpretive
17. ThedemandforChocolateChipCookieDoughicecreamislikelyquiteelasticbecause
a. icecreammustbeeatenquickly.
b. thisparticularflavoroficecreamisviewedasanecessitybymanyice-creamlovers.
c. themarketisbroadlydefined.
d. otherflavorsoficecreamaregoodsubstitutesforthisparticularflavor.
Priceelasticityofdemand|Substitutes MSC:
18. ThedemandforWertherscandyislikely
a. elasticbecausecandyisexpensiverelativetoothersnacks.
b. elasticbecausetherearemanyclosesubstitutesforWerthers.
c. elasticbecauseWerthersareregardedasanecessitybymanypeople.
d. inelasticbecauseitisusuallyeatenquickly,makingtherelevanttimehorizonshort.
19. Thereareveryfew,ifany,goodsubstitutesformotoroil.Therefore,
a. thedemandformotoroilwouldtendtobeinelastic.
b. thedemandformotoroilwouldtendtobeelastic.
c. thedemandformotoroilwouldtendtorespondstronglytochangesinpricesofothergoods.
d. thesupplyofmotoroilwouldtendtorespondstronglytochangesinpeople’stastesforlargecarsrelativetotheirtastesforsmallcars.
20. Holdingallotherforcesconstant,whenthepriceofgasolinerises,thenumberofgallonsofgasolinedemandedwouldfallsubstantiallyoveraten-yearperiodbecause
a. buyerstendtobemuchlesssensitivetoachangeinpricewhengivenmoretimetoreact.
b. buyerstendtobemuchmoresensitivetoachangeinpricewhengivenmoretimetoreact.
c. buyerswillhavesubstantiallymoreincomeoveraten-yearperiod.
d. thequantitysuppliedofgasolineincreasesverylittleinresponsetoanincreaseinthepriceofgasoline.
21. Agoodwillhaveamoreinelasticdemand,
a. thegreatertheavailabilityofclosesubstitutes.
b. thebroaderthedefinitionofthemarket.
c. thelongertheperiodoftime.
d. themoreitisregardedasaluxury.
22. Itislikelythat
a. thedemandforflat-screencomputermonitorsismoreelasticthanthedemandformonitorsingeneral.
b. thedemandforgrandfatherclocksismoreelasticthanthedemandforwristwatches.
c. thedemandforcardboardismoreelasticoveralongperiodoftimethanoverashortperiodoftime.
23. Itislikelythat
a. thedemandfornaturalgasismoreelasticoverashortperiodoftimethanoveralongperiodoftime.
b. thedemandforsmokealarmsismoreelasticthanthedemandforPersianrugs.
c. thedemandforbourbonwhiskeyismoreelasticthanthedemandforalcoholicbeveragesingeneral.
24. Whenthepriceofbubblegumis$0.50,thequantitydemandedis400packsperday.Whenthepricefallsto$0.40,thequantitydemandedincreasesto600.Giventhisinformationandusingthemidpointmethod,weknowthatthedemandforbubblegumis
c. unitelastic.
d. perfectlyinelastic.
Priceelasticityofdemand|Midpointmethod MSC:
Applicative
25. Economistscomputethepriceelasticityofdemandasthe
a. percentagechangeinpricedividedbythepercentagechangei