尼科尔森微经练习题 (7).pdf

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1、Chapter9ProfitMaximization97.Afirm’smarginalrevenueisdefinedasa.theratiooftotalrevenuetototalquantityproduced.b.theadditionaloutputproducedbyloweringprice.c.theadditionalrevenuereceivedduetotechnicalinnovation.*d.theadditionalrevenuereceivedwhensellingonemoreunitofoutput.98.Inordertomaximizepr

2、ofits,afirmshouldproduceattheoutputlevelforwhicha.averagecostisminimized.*b.marginalrevenueequalsmarginalcost.c.marginalcostisminimized.d.priceminusaveragecostisaslargeaspossible.99.Ifdemandfacingthefirmisprice-inelastic,marginalrevenuewillbea.positive.b.zero.*c.negative.d.constant.100.Ifafirm

3、wishedtomaximizetotalrevenuesitshouldproducewherea.marginalcostiszero.*b.marginalrevenueiszero.c.marginalrevenueisequaltomarginalcost.d.marginalrevenueisequaltoprice.101.Ifafirmisapricetaker,itsmarginalrevenueis*a.equaltomarketprice.b.lessthanmarketprice.c.greaterthanmarketprice.d.amultipleofm

4、arketpricethatmaybeeithergreaterthanorlessthanone.102.Ifafirm’smarginalrevenueisbelowitsmarginalcost,anincreaseinproductionwillusuallya.increaseprofits.b.leaveprofitsunchanged.*c.decreaseprofits.d.increasemarginalrevenue.141103.Ifthedemandfacedbyafirmisinelastic,sellingonemoreunitofoutputwilla

5、.increaserevenues.*b.decreaserevenues.c.keeprevenuesconstant.d.increaseprofits.104.Ifthedemandfacedbyafirmiselastic,sellingonelessunitofoutputwilla.increaserevenue.*b.decreaserevenue.c.keeprevenuesconstant.d.decreaseprice.105.Ifthedemandcurveafirmfacesshiftstotheright,usuallya.itwouldbeimpossi

6、bletotellwhetherthemarginalrevenuecurveshifts.b.themarginalrevenuecurvewouldshifttotheleft.*c.themarginalrevenuecurvewouldshifttotheright.d.themarginalrevenuecurvewouldnotshift.106.Itisusuallyassumedthataperfectlycompetitivefirm’ssupplycurveisgivenbyitsmarginalcostcurve.Inorderforthistobetrue,

7、whichofthefollowingadditionalassumptionsarenecessary:I.Thatthefirmseektomaximizeprofits.II.Thatthemarginalcostcurvebepositivelysloped.III.Thatpriceexceedaveragevariablecost.IV.Thatpriceexceedaveragetotalcost.a.Alloftheaboveb.IandIIbutno