经济学原理对应练习 21.docx

经济学原理对应练习 21.docx

《经济学原理对应练习 21.docx》由会员分享，可在线阅读，更多相关《经济学原理对应练习 21.docx（85页珍藏版）》请在冰点文库上搜索。

经济学原理对应练习21

Chapter21

MultipleChoice

1.Thetheoryofconsumerchoiceprovidesthefoundationforunderstanding

a.thestructureofafirm.

b.theprofitabilityofafirm.

c.afirm'sproductdemand.

d.afirm'sproductsupply.

ANS:

CPTS:

1DIF:

1REF:

21-0

TOP:

ConsumerchoiceMSC:

Definitional

2.Thetheoryofconsumerchoiceexamines

a.thedeterminationofoutputincompetitivemarkets.

b.thetradeoffsinherentindecisionsmadebyconsumers.

c.howconsumersselectinputsintomanufacturingproductionprocesses.

d.thedeterminationofpricesincompetitivemarkets.

ANS:

BPTS:

1DIF:

1REF:

21-0

TOP:

ConsumerchoiceMSC:

Definitional

3.Considertwogoods,booksandhamburgers.Theslopeoftheconsumer'sbudgetconstraintismeasuredbythe

a.consumer'sincomedividedbythepriceofhamburgers.

b.relativepriceofbooksandhamburgers.

c.consumer'smarginalrateofsubstitution.

d.numberofbookspurchaseddividedbythenumberofhamburgerspurchased.

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Interpretive

4.Ifaconsumer'sincomedecreases,thebudgetconstraintforCDsandDVDswill

a.shiftoutward,paralleltotheoriginalbudgetconstraint.

b.shiftinward,paralleltotheoriginalbudgetconstraint.

c.rotateoutwardalongtheCDaxisbecausewecanaffordmoreCDs.

d.rotateoutwardalongtheDVDaxisbecausewecanaffordmoreDVDs.

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

5.Iftherelativepriceofaconcertticketis3timesthepriceofamealatagoodrestaurant,thentheopportunitycostofaconcertticketcanbemeasuredbythe

a.slopeofthebudgetconstraint.

b.slopeofanindifferencecurve.

c.marginalrateofsubstitution.

d.incomeeffect.

ANS:

APTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

6.Whenthepriceofashirtfalls,the

a.quantityofshirtsdemandedfalls.

b.quantityofshirtsdemandedrises.

c.quantityofshirtssuppliedrises.

d.demandforshirtsfalls.

ANS:

BPTS:

1DIF:

1REF:

21-1

TOP:

DemandMSC:

Analytical

7.Abudgetconstraint

a.showsthepricesthataconsumerchoosestopayforproductsheconsumes.

b.showsthepurchasesmadebyconsumers.

c.showstheconsumptionbundlesthataconsumercanafford.

d.representstheconsumptionbundlesthatgiveaconsumerequalsatisfaction.

ANS:

CPTS:

1DIF:

1REF:

21-1

TOP:

BudgetconstraintMSC:

Definitional

8.Assumethatacollegestudentspendsherincomeonbooksandpizza.Thepriceofapizzais$8.00,andthepriceofabookis$15.Ifshehas$100ofincome,shecouldchoosetoconsume

a.8pizzasand4books.

b.4pizzasand5books.

c.9pizzasand3books.

d.4pizzasand3books.

ANS:

DPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

9.Assumethatacollegestudentspendsherincomeonmac-n-cheeseandCDs.Thepriceofoneboxofmac-n-cheeseis$1.00,andthepriceofoneCDis$12.00.Ifshehas$100ofincome,shecouldchoosetoconsume

a.15boxesofmac-n-cheeseand6CDs.

b.20boxesofmac-n-cheeseand7CDs.

c.10boxesofmac-n-cheeseand8CDs.

d.30boxesofmac-n-cheeseand6CDs.

ANS:

APTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

10.Aconsumerthatdoesn'tspendallofherincome

a.wouldbeatapointoutsideofherbudgetconstraint.

b.wouldbeatapointinsideherbudgetconstraint.

c.mustnotbeconsumingpositivequantitiesofallgoods.

d.mustbeconsumingatapointwhereherbudgetconstrainttouchesoneoftheaxes.

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Interpretive

11.Anincreaseinincomewillcauseaconsumer'sbudgetconstraintto

a.shiftoutward,paralleltoitsinitialposition.

b.shiftinward,paralleltoitsinitialposition.

c.pivotaroundthe"Y"axis.

d.pivotaroundthe"X"axis.

ANS:

APTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

Figure21-1

12.RefertoFigure21-1.Whichpointinthefigureshowingaconsumer’sbudgetconstraintrepresentstheconsumer'sincomedividedbythepriceofaCD?

a.PointA

b.PointC

c.PointD

d.PointE

ANS:

CPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

13.RefertoFigure21-1.Aconsumerthatchoosestospendallofherincomecouldbeatwhichpoint（s）onthebudgetconstraint?

a.A

b.E

c.B,C,orD

d.A,B,C,orD

ANS:

CPTS:

1DIF:

1REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

14.RefertoFigure21-1.Allofthepointsidentifiedinthefigurerepresentpossibleconsumptionoptionswiththeexceptionof

a.A

b.E

c.AandE

d.None.Allpointsarepossibleconsumptionoptions.

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

Figure21-2

15.RefertoFigure21-2.WhichofthegraphsinthefigurereflectsadecreaseinthepriceofgoodXonly?

a.graph（a）

b.graph（b）

c.graph（c）

d.graph（d）

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

16.RefertoFigure21-2.WhichofthegraphsinthefigurereflectsanincreaseinthepriceofgoodYonly?

a.graph（a）

b.graph（b）

c.graph（c）

d.graph（d）

ANS:

CPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

17.RefertoFigure21-2.Whichofthegraphsinthefigurecouldreflectadecreaseinthepricesofbothgoods?

a.graph（a）

b.graph（b）

c.graph（c）

d.graph（d）

ANS:

DPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

18.Theslopeofthebudgetconstraintisdeterminedbythe

a.relativepriceofthegoodsmeasuredontheaxes.

b.relativepriceofthegoodsmeasuredontheaxesandtheconsumer’sincome.

c.endowmentofproductiveresources.

d.preferencesoftheconsumer.

ANS:

APTS:

1DIF:

1REF:

21-1

TOP:

BudgetconstraintMSC:

Definitional

19.Theslopeofthebudgetconstraintisallofthefollowingexcept

a.therelativepriceoftwogoods.

b.therateatwhichaconsumercantradeonegoodforanother.

c.themarginalrateofsubstitution.

d.constant.

ANS:

CPTS:

1DIF:

1REF:

21-1

TOP:

BudgetconstraintMSC:

Definitional

Figure21-3

20.RefertoFigure21-3.Ingraph（a）,ifincomeisequalto$120,thepriceofgoodyis

a.$1

b.$2

c.$3

d.$4

ANS:

CPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

21.RefertoFigure21-3.Ingraph（a）,whatisthepriceofgoodyrelativetogoodx（i.e.,Py/Px）?

a.1/3

b.1/4

c.3

d.4

ANS:

BPTS:

1DIF:

3REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

22.RefertoFigure21-3.Ingraph（b）,whatisthepriceofgoodxrelativetogoody（i.e.,Px/Py）?

a.2/7

b.3/6

c.7/2

d.7

ANS:

APTS:

1DIF:

3REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

23.RefertoFigure21-3.Assumethataconsumerfacesbothbudgetconstraintsingraph（a）andgraph（b）ontwodifferentoccasions.Ifherincomehasremainedconstant,whathashappenedtoprices?

a.ThepriceofXingraph（a）ishigherthanthepriceofXingraph（b）.

b.ThepriceofYingraph（a）ishigherthanthepriceofYingraph（b）.

c.ThepricesofbothXandYareloweringraph（a）.

d.Noneoftheabovearetrue.

ANS:

APTS:

1DIF:

3REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

24.Supposeaconsumerspendsherincomeontwogoods:

musicCDsandDVDs.Iftheconsumerhas$200toallocatetothesetwogoods,thepriceofaCDis$10,andthepriceofaDVDis$20,whatisthemaximumnumberofCDstheconsumercanpurchase?

a.10

b.20

c.40

d.50

ANS:

BPTS:

1DIF:

1REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

25.Supposeaconsumerspendsherincomeontwogoods:

musicCDsandDVDs.IfthepriceofaCDis$8,thepriceofaDVDis$20,andwegraphthebudgetconstraintbyplacingthequantityofCDspurchasedonthehorizontalaxis,whatistheslopeofthebudgetconstraint?

a.-5.0

b.-2.5

c.-0.4

d.Theslopeofthebudgetconstraintcannotbedeterminedwithoutknowingtheincometheconsumerhasavailabletospendonthetwogoods.

ANS:

CPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

26.Supposeaconsumeriscurrentlyspendingallofheravailableincomeontwogoods:

musicCDsandDVDs.IfthepriceofaCDis$9,thepriceofaDVDis$18,andsheiscurrentlyconsuming10CDsand5DVDs,whatistheconsumer'sincome?

a.$90

b.$180

c.$270

d.$360

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

27.Aconsumeriscurrentlyspendingallofheravailableincomeontwogoods:

musicCDsandDVDs.AthercurrentconsumptionbundlesheisspendingtwiceasmuchonCDsassheisonDVDs.Iftheconsumerhas$120ofincomeandisconsuming10CDsand2DVDs,whatisthepriceofaCD?

a.$4

b.$8

c.$12

d.$20

ANS:

BPTS:

1DIF:

3REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

28.Thefollowingdiagramshowsabudgetconstraintforaparticularconsumer.

Ifthepriceofxis$10,whatisthepriceofy?

a.$15

b.$25

c.$35

d.$70

ANS:

CPTS:

1DIF:

3REF:

21-1

TOP:

BudgetconstraintMSC:

Analytical

29.Budgetconstraintsexistforconsumersbecause

a.theirutilityfromconsuminggoodseventuallyreachesamaximumlevel.

b.evenwithunlimitedincomestheyhavetopayforeachgoodtheyconsume.

c.theyhavetopayforgoodsandtheyhavelimitedincomes.

d.pricesandincomesareinverselyrelated.

ANS:

CPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Interpretive

30.Afamilyonatripbudgets$800formealsandgasoline.Ifthepriceofamealforthefamilyis$50,howmanymealscanthefamilybuyiftheydonotbuyanygasoline?

a.8

b.16

c.24

d.32

ANS:

BPTS:

1DIF:

2REF:

21-1

TOP:

BudgetconstraintMSC:

Applicative

31.Afamilyonatripbudgets$800formealsandhotelaccommodations.Supposethepriceofamealis$40.Inaddition,supposethefamilyc