曼昆宏观经济学课件 ppt 30

曼昆宏观经济学课件 ppt 30

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时间:2019-03-01

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1、CHAPTER30MoneyGrowthandInflationEcoPRINnCIPoLEmSOFicsN.GregoryMankiwPremiumPowerPointSlidesbyRonCronovich©2009South-Western,apartofCengageLearning,allrightsreservedInthischapter,lookfortheanswerstothesequestions:§Howdoesthemoneysupplyaffectinflationandnom

2、inalinterestrates?§DoesthemoneysupplyaffectrealvariableslikerealGDPortherealinterestrate?§Howisinflationlikeatax?§Whatarethecostsofinflation?Howseriousarethey?1Introduction§ThischapterintroducesthequantitytheoryofmoneytoexplainoneoftheTenPrinciplesofEcono

3、micsfromChapter1:Pricesrisewhenthegovtprintstoomuchmoney.§MosteconomistsbelievethequantitytheoryisMONEYGROWTHANDINFLATION21TheValueofMoney§P=thepricelevel(e.g.,theCPIorGDPdeflator)Pis§1/Pis§Example:basketcontainsonecandybar.§IfP=$2,valueof$1is1/2candybar§

4、IfP=$3,valueof$1is1/3candybar§InflationdrivesuppricesandMONEYGROWTHANDINFLATION3TheQuantityTheoryofMoney§Developedby18thcenturyphilosopherDavidHumeandtheclassicaleconomists§AdvocatedmorerecentlybyNobelPrizeLaureateMiltonFriedman§§Westudythistheoryusingtwo

5、approaches:1.Asupply-demanddiagram2.AnequationMONEYGROWTHANDINFLATION4MoneySupply(MS)§Inrealworld,determinedbyFederalReserve,thebankingsystem,consumers.§Inthismodel,weassumeMONEYGROWTHANDINFLATION52MoneyDemand(MD)§Refersto§Dependson§Thus,quantityofmoneyde

6、mandedis_____________relatedtothevalueofmoneyand___________relatedtoP,otherthingsequal.(These“otherthings”includerealincome,interestrates,availabilityofATMs.)MONEYGROWTHANDINFLATION6TheMoneySupply-DemandDiagramValueofPriceMoney,1/PLevel,P11¾1.33½2¼4Quanti

7、tyofMoneyMONEYGROWTHANDINFLATION7TheMoneySupply-DemandDiagramValueofPriceMoney,1/PMS1Level,P11¾1.33TheFedsetsMS½2atsomefixedvalue,regardlessofP.¼4$1000QuantityofMoneyMONEYGROWTHANDINFLATION83TheMoneySupply-DemandDiagramValueofAfallinvalueofmoneyPriceMoney

8、,1/P(orincreaseinP)Level,Pincreasesthequantity1ofmoneydemanded:1¾1.33½2¼4MD1QuantityofMoneyMONEYGROWTHANDINFLATION9TheMoneySupply-DemandDiagramValueofPriceMoney,1/PMS1Level,P11¾1.33½2¼4MD1$1000QuantityofMoneyMONEYGR

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