管理经济学作业答案.doc

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1、ManagerialEconomicsHOMEWORKSET#2Name:Class:Student#:(Dueday:Nextclass)Part1:1.ThepriceofgoodAgoesup.AsaresultthedemandforgoodBshiftstotheleft.Fromthiswecaninferthat:a.goodAisanormalgood.b.goodBisaninferiorgood.c.goodsAandBaresubstitutes.d.goodsAandBarecomplements.e.noneoftheabove.Choos

2、e:d)thedefinitionoscomplements2.Joe'sbudgetlineis15F+45C=900.WhenJoechooseshismostpreferredmarketbasket,hebuys10unitsofC.therefore,healsobuys:a.10unitsofFb.30unitsofFc.50unitsofFd.60unitsofFe.NoneoftheaboveChoose:b)WeassumethatJoewillspendallhisincome.IfC=10,then15F=900–45(10)=450,soF=

3、450/15=30.3.Kimonlybuyscoffeeandcompactdiscs.Coffeecosts$0.60percup,andCDscost$12.00each.Shehas$18perweektospendonthesetwogoods.IfKimismaximizingherutility,hermarginalrateofsubstitutionofcoffeeforCDsis:a.0.05b.20c.18d.1.50e.NoneoftheaboveChoose:a)AtKim'smostpreferredmarketbasket,herMRS

4、equalsthepriceratio(Pcoffee/PCD),whichequals0.6/12or0.05.4.Thebandwagoneffectcorrespondsbesttowhichofthefollowing?a.snobeffect.b.externaleconomy.c.negativenetworkexternality.d.positivenetworkexternality.指许多人都已拥有或购买某种商品的情况下，消费者希望能够拥有或购买拥.Choose:d)5.AGiffengooda.isalwaysthesameasaninferi

5、orgood.b.isthespecialsubsetofinferiorgoodsinwhichthesubstitutioneffectdominatestheincomeeffect.c.isthespecialsubsetofinferiorgoodsinwhichtheincomeeffectdominatesthesubstitutioneffect.d.musthaveadownwardslopingdemandcurve.Choose:c)thedefinitionofGiffengood6.AnEngelcurveforagoodhasaposit

6、iveslopeifthegoodis:a.aninferiorgood.b.aGiffengood.c.anormalgood.d.a,b,andcaretrue.e.Noneoftheaboveistrue.Choose:c)InferiorandGiffengoodshavenegativelyslopedEngelcurves.7.ThepriceofbeefandquantityofbeeftradedareP*andQ*,respectively.Giventhisinformation,consumersurplusisthearea:a.0BCQ*b

7、.ABCc.ACP*d.CBP*e.0ACQ*Choose:d)Consumersurplusistheareabetweenthedemandlineandtheprice.8.InFigure1,holdingincomeconstant,whatchangemusthaveoccurredtorotatethebudgetlinefromtheoldline(1)tothenewline(2)?(1)(2)PizzaCokeFigure1a.ThepriceofCokefellb.Thepriceofpizzafellc.Thepriceofpizzaro