曼昆经济学题库chapter13

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1、Chapter14/FirmsinCompetitiveMarketsF435Chapter13FirmsinCompetitiveMarketsMultipleChoice1.Amarketiscompetitiveif(i)firmshavetheflexibilitytopricetheirownproduct.(ii)eachbuyerissmallcomparedtothemarket.(iii)eachsellerissmallcomparedtothemarket.a.(i)and(ii)onlyb.(i)and(iii)only

2、c.(ii)and(iii)onlyd.Alloftheabovearecorrect.ANSWER:c.(ii)and(iii)onlyTYPE:MDIFFICULTY:2SECTION:14.12.Whenafirmhaslittleabilitytoinfluencemarketpricesitissaidtobeinwhatkindofamarket?a.acompetitivemarketb.astrategicmarketc.athinmarketd.apowermarketANSWER:a.acompetitivemarketTY

3、PE:MDIFFICULTY:1SECTION:14.13.Inacompetitivemarket,theactionsofanysinglebuyerorsellerwilla.haveanegligibleimpactonthemarketprice.b.havelittleeffectonoverallproductionbutwillultimatelychangefinalproductprice.c.causeanoticeablechangeinoverallproductionandachangeinfinalproductp

4、rice.d.adverselyaffecttheprofitabilityofmorethanonefirminthemarket.ANSWER:a.haveanegligibleimpactonthemarketprice.TYPE:MDIFFICULTY:2SECTION:14.1Usetheinformationinthetablebelowtoanswerquestions4through7.QuantityPrice1132133134135136137138139134.Thepriceandquantityrelationshi

5、pinthetableismostlikelythatfacedbyafirminaa.monopoly.b.concentratedmarket.c.competitivemarket.d.strategicmarket.ANSWER:c.competitivemarket.TYPE:MDIFFICULTY:1SECTION:14.1Chapter14/FirmsinCompetitiveMarketsF4355.Overwhichrangeofoutputisaveragerevenueequaltoprice?a.1to5b.3to7c.

6、5to9d.Averagerevenueisequaltopriceoverthewholerangeofoutput.ANSWER:d.Averagerevenueisequaltopriceoverthewholerangeofoutput.TYPE:MDIFFICULTY:1SECTION:14.16.Overwhatrangeofoutputismarginalrevenuedeclining?a.1to6b.3to7c.7to9d.None;marginalrevenueisconstantoverthewholerangeofout

7、put.ANSWER:d.None;marginalrevenueisconstantoverthewholerangeofoutput.TYPE:MDIFFICULTY:2SECTION:14.17.Ifthefirmdoublesitsoutputfrom3to6units,totalrevenuewilla.increasebylessthan$39.b.increasebyexactly$39.c.increasebymorethan$39.d.Itcannotbedeterminedfromtheinformationprovided

8、.ANSWER:b.increasebyexactly$39.TYPE:MDIFFICULTY:1SECTION:14.18.Forafirminap