09宏观经济学(曼昆-第6版-配套习题.doc

09宏观经济学(曼昆-第6版-配套习题.doc

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Chapter09/AggregateDemandandAggregateSupplyF567

Chapter9

AggregateDemandandAggregateSupply

MULTIPLECHOICE

1. Whichofthefollowingexplainswhyproductionrisesinmostyears?

a. increasesinthelaborforce

b. increasesinthecapitalstock

c. increasesintechnology

d. Alloftheabovearecorrect.

ANSWER:

d. Alloftheabovearecorrect.

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2. Onaverageoverthepast50years,theU.S.economyhasgrownattherateofabout

a. 1percentperyear.

b. 3percentperyear.

c. 4percentperyear.

d. 6percentperyear.

ANSWER:

b. 3percentperyear.

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3. Ashortperiodoffallingincomesandrisingunemploymentiscalleda

a. depression.

b. recession.

c. expansion.

d. businesscycle.

ANSWER:

b. recession.

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4. Duringrecessions

a. workersarelaidoff.

b. factoriesareidle.

c. firmsmayfindtheyareunabletosellalltheyproduce.

d. Alloftheabovearecorrect.

ANSWER:

d. Alloftheabovearecorrect.

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5. Duringarecessiontheeconomyexperiences

a. risingemploymentandincome.

b. risingemploymentandfallingincome.

c. risingincomeandfallingemployment.

d. fallingemploymentandincome.

ANSWER:

d. fallingemploymentandincome.

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6. Businesscycles

a. areeasilypredictedbycompetenteconomists.

b. haveneveroccurredveryclosetogether.

c. canonlybeseenaschangesinrealGDP.

d. Noneoftheaboveiscorrect.

ANSWER:

d. Noneoftheabovearecorrect.

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7. Businesscycles

a. areexplainedmostlybyfluctuationsinconsumption.

b. nolongerareveryimportantduetogovernmentpolicy.

c. arefluctuationsinrealGDPandrelatedvariablesovertime.

d. areeasilypredictedbycompetenteconomists.

ANSWER:

c. arefluctuationsinrealGDPandrelatedvariablesovertime.

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8. Duringrecessions

a. salesandprofitsfall.

b. salesandprofitsrise.

c. salesrise,profitsfall.

d. profitsfall,salesrise.

ANSWER:

a. salesandprofitsfall.

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9. ThedecreaseinrealGDPduringarecessionis

a. mostlyadecreaseininvestmentspending.

b. mostlyadecreaseinconsumptionspending.

c. aboutequallydividedbetweenconsumptionandinvestmentspending.

d. sometimesmostlyadecreaseinconsumptionandsometimesmostlyadecreaseininvestment.

ANSWER:

a. mostlyadecreaseininvestmentspending.

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10. Whichofthefollowingtypicallyrisesduringarecession?

a. garbagecollection

b. unemployment

c. corporateprofits

d. automobilesales

ANSWER:

b. unemployment

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11. Mosteconomistsusetheaggregatedemandandaggregatesupplymodelprimarilytoanalyze

a. short-runfluctuationsintheeconomy.

b. theeffectsofmacroeconomicpolicyonthepricesofindividualgoods.

c. thelong-runeffectsofinternationaltradepolicies.

d. productivityandeconomicgrowth

ANSWER:

a. short-runfluctuationsintheeconomy.

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12. RealGDP

a. isthedollarvalueofallgoodsproducedbythecitizensofaneconomywithinagiventimemeasuredincurrentyearprices.

b. measureseconomicactivityandincome.

c. isusedprimarilytomeasurelong-runtrendsintheeconomy.

d. Alloftheabovearecorrect.

ANSWER:

b. measureseconomicactivityandincome.

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13. RealGDP

a. movesinthesamedirectionasunemployment.

b. isnotadjustedforinflation.

c. alsomeasuresincome.

d. Alloftheabovearecorrect.

ANSWER:

c. alsomeasuresincome.

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14. Inarecession,comparedtothepercentagedeclineinGDP,investmentspending

a. fallsbyalargerpercentage.

b. fallsbyaboutthesamepercentageasGDP.

c. fallsbyasmallerpercentagethanGDP.

d. fallsbutthepercentagechangeissometimesmuchlargerandsometimesmuchsmaller.

ANSWER:

a. fallsbyalargerpercentage.

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15. WhichpartofrealGDPfluctuatesmostoverthecourseofthebusinesscycle?

a. consumption

b. governmentexpenditures

c. investment

d. netexports

ANSWER:

c. investment

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16. In2001,theUnitedStateswasinrecession.Whichofthefollowingthingswouldyouexpectnottohavehappened?

a. layoffsandfirings

b. ahigherrateofbankruptcy

c. increasedclaimsforunemploymentinsurance

d. increasedinvestmentspending

ANSWER:

d. increasedinvestmentspending

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17. Investmentisa

a. smallpartofrealGDP,soitaccountsforasmallshareofthefluctuationinrealGDP.

b. smallpartofrealGDP,yetitaccountsforalarg