经济学原理对应练习--17.doc

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Chapter17

MonopolisticCompetition

MultipleChoice

1. Whichofthefollowingisnotacharacteristicofmonopolisticcompetition?

a. Alargenumberofsellers.

b. Firmsarepricetakers.

c. Thereisfreeentryintothemarket.

d. Sellersofferproductsthatare,insomeway,differentfromtheircompetitorsproducts.

ANS:B PTS:1 DIF:1 REF:17-0

TOP:Monopolisticcompetition MSC:Definitional

2. Whichofthefollowingmarketswouldmostlikelyberepresentedbymonopolisticcompetition?

a. Themarketforcorn.

b. Themarketforcabletelevisionservice.

c. Themarketfor#2woodenpencils.

d. Themarketforclothing.

ANS:D PTS:1 DIF:2 REF:17-0

TOP:Monopolisticcompetition MSC:Interpretive

3. Monopolisticcompetitionischaracterizedbywhichofthefollowingattributes?

(i) Freeentry

(ii) Productdifferentiation

(iii) Manysellers

a. (i)and(iii)only

b. (i)and(ii)only

c. (ii)and(iii)only

d. (i),(ii),and(iii)

ANS:D PTS:1 DIF:1 REF:17-1

TOP:Monopolisticcompetition MSC:Definitional

4. Inamonopolisticallycompetitiveindustry,firmssetprice

a. equaltomarginalcostsinceeachfirmisapricetaker.

b. belowmarginalcostsinceeachfirmisapricetaker.

c. abovemarginalcostsinceeachfirmisapricesetter.

d. alwaysafractionofmarginalcostsinceeachfirmisapricesetter.

ANS:C PTS:1 DIF:2 REF:17-1

TOP:Price MSC:Interpretive

5. Inwhichofthefollowingmarketstructuresaretherealargenumberofsellers?

(i) Monopolisticcompetition

(ii) Perfectcompetition

(iii) Oligopoly

a. (i)and(ii)only

b. (ii)and(iii)only

c. (ii)only

d. (i),(ii),and(iii)

ANS:A PTS:1 DIF:1 REF:17-1

TOP:Markets MSC:Definitional

6. Inwhichofthefollowingmarketstructuresdoesfreeentryandexitplayanimportantroleinthelong-runequilibriumoutcome?

(i) Perfectcompetition

(ii) Monopolisticcompetition

(iii) Monopoly

a. (i)only

b. (i)and(ii)only

c. (ii)and(iii)only

d. (i),(ii),and(iii)

ANS:B PTS:1 DIF:2 RE

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