曼昆经济学题库chapter13.docx
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曼昆经济学题库chapter13.docx
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标准文档
Chapter13
FirmsinCompetitiveMarkets
MULTIPLECHOICE
1.Amarketiscompetitiveif
(i)firmshavetheflexibilitytopricetheirownproduct.
(ii)eachbuyerissmallcomparedtothemarket.
(iii)eachsellerissmallcomparedtothemarket.
a.(i)and(ii)only
b.(i)and(iii)only
c.(ii)and(iii)only
d.Alloftheabovearecorrect.ANSWER:
c. (ii)and(iii)onlyTYPE:
MDIFFICULTY:
2SECTION:
14.1
2.Whenafirmhaslittleabilitytoinfluencemarketpricesitissaidtobeinwhatkindofamarket?
a.acompetitivemarket
b.astrategicmarket
c.athinmarket
d.apowermarket
ANSWER:
a. acompetitivemarketTYPE:
MDIFFICULTY:
1SECTION:
14.1
3.Inacompetitivemarket,theactionsofanysinglebuyerorsellerwill
a.haveanegligibleimpactonthemarketprice.
b.havelittleeffectonoverallproductionbutwillultimatelychangefinalproductprice.
c.causeanoticeablechangeinoverallproductionandachangeinfinalproductprice.
d.adverselyaffecttheprofitabilityofmorethanonefirminthemarket.ANSWER:
a. haveanegligibleimpactonthemarketprice.
TYPE:
MDIFFICULTY:
2SECTION:
14.1
Usetheinformationinthetablebelowtoanswerquestions4through7.
Quantity
Price
1
13
2
13
3
13
4
13
5
13
6
13
7
13
8
13
9
13
4.Thepriceandquantityrelationshipinthetableismostlikelythatfacedbyafirmina
a.monopoly.
b.concentratedmarket.
c.competitivemarket.
d.strategicmarket.
ANSWER:
c. competitivemarket.TYPE:
MDIFFICULTY:
1SECTION:
14.1
实用文案
Chapter14/FirmsinCompetitiveMarketsF4097
5.Overwhichrangeofoutputisaveragerevenueequaltoprice?
a.1to5
b.3to7
c.5to9
d.Averagerevenueisequaltopriceoverthewholerangeofoutput.ANSWER:
d. Averagerevenueisequaltopriceoverthewholerangeofoutput.TYPE:
MDIFFICULTY:
1SECTION:
14.1
6.Overwhatrangeofoutputismarginalrevenuedeclining?
a.1to6
b.3to7
c.7to9
d.None;marginalrevenueisconstantoverthewholerangeofoutput.ANSWER:
d. None;marginalrevenueisconstantoverthewholerangeofoutput.TYPE:
MDIFFICULTY:
2SECTION:
14.1
7.Ifthefirmdoublesitsoutputfrom3to6units,totalrevenuewill
a.increasebylessthan$39.
b.increasebyexactly$39.
c.increasebymorethan$39.
d.Itcannotbedeterminedfromtheinformationprovided.ANSWER:
b. increasebyexactly$39.
TYPE:
MDIFFICULTY:
1SECTION:
14.1
8.Forafirminaperfectlycompetitivemarket,thepriceofthegoodisalways
a.equaltomarginalrevenue.
b.equaltototalrevenue.
c.greaterthanaveragerevenue.
d.Alloftheabovearecorrect.ANSWER:
a. equaltomarginalrevenue.TYPE:
MDIFFICULTY:
1SECTION:
14.1
9.Ifafirminaperfectlycompetitivemarkettriplesthenumberofunitsofoutputsold,thentotalrevenuewill
a.morethantriple.
b.lessthantriple.
c.exactlytriple.
d.Alloftheabovearepotentiallytrue.ANSWER:
c. exactlytriple.
TYPE:
MDIFFICULTY:
1SECTION:
14.1
10.Becausethegoodsofferedforsaleinacompetitivemarketarelargelythesame,
a.therewillbefewsellersinthemarket.
b.therewillbefewbuyersinthemarket.
c.buyerswillhavemarketpower.
d.sellerswillhavelittlereasontochargelessthanthegoingmarketprice.ANSWER:
d. sellerswillhavelittlereasontochargelessthanthegoingmarketprice.TYPE:
MDIFFICULTY:
1SECTION:
14.1
11.WhichofthefollowingisNOTacharacteristicofaperfectlycompetitivemarket?
a.Firmsarepricetakers.
b.Firmshavedifficultyenteringthemarket.
c.Therearemanysellersinthemarket.
d.Goodsofferedforsalearelargelythesame.ANSWER:
b. Firmshavedifficultyenteringthemarket.TYPE:
MDIFFICULTY:
1SECTION:
14.1
12.Whenbuyersinacompetitivemarkettakethesellingpriceasgiven,theyaresaidtobe
a.marketentrants.
b.monopolists.
c.freeriders.
d.pricetakers.
ANSWER:
d. pricetakers.
TYPE:
MDIFFICULTY:
1SECTION:
14.1
13.Whenfirmsaresaidtobepricetakers,itimpliesthatifafirmraisesitsprice,
a.buyerswillgoelsewhere.
b.buyerswillpaythehigherpriceintheshortrun.
c.competitorswillalsoraisetheirprices.
d.firmsintheindustrywillexercisemarketpower.ANSWER:
a. buyerswillgoelsewhere.
TYPE:
MDIFFICULTY:
1SECTION:
14.1
14.Whichofthefollowingstatementsbestreflectsaprice-takingfirm?
a.Ifthefirmweretochargemorethanthegoingprice,itwouldsellnoneofitsgoods.
b.Thefirmhasnoincentivetochargelessthanthegoingprice.
c.Thefirmcansellasmuchasitwantstosellatthegoingprice.
d.Alloftheabovearecorrect.ANSWER:
d. Alloftheabovearecorrect.TYPE:
MDIFFICULTY:
2SECTION:
14.1
15.Inacompetitivemarket,nosingleproducercaninfluencethemarketpricebecause
a.manyothersellersareofferingaproductthatisessentiallyidenti
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