曼昆微观经济学英文版01ten principles.ppt

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1、PowerPoint®LecturePresentationtoaccompanyPrinciplesofEconomics,ThirdEditionN.GregoryMankiwPreparedbyMarkP.Karscig,CentralMissouriStateUniversity.1INTRODUCTION1TenPrinciplesofEconomicsEconomy......ThewordeconomycomesfromaGreekwordfor“onewhomanagesahousehold.”TENPRINCIPLESOFECON

2、OMICSAhouseholdandaneconomyfacemanydecisions:Whowillwork?Whatgoodsandhowmanyofthemshouldbeproduced?Whatresourcesshouldbeusedinproduction?Atwhatpriceshouldthegoodsbesold?TENPRINCIPLESOFECONOMICSSocietyandScarceResources:Themanagementofsociety’sresourcesisimportantbecauseresour

3、cesarescarce.Scarcity...meansthatsocietyhaslimitedresourcesandthereforecannotproduceallthegoodsandservicespeoplewishtohave.TENPRINCIPLESOFECONOMICSEconomicsisthestudyofhowsocietymanagesitsscarceresources.TENPRINCIPLESOFECONOMICSHowpeoplemakedecisions.Peoplefacetradeoffs.Thecos

4、tofsomethingiswhatyougiveuptogetit.Rationalpeoplethinkatthemargin.Peoplerespondtoincentives.TENPRINCIPLESOFECONOMICSHowpeopleinteractwitheachother.Tradecanmakeeveryonebetteroff.Marketsareusuallyagoodwaytoorganizeeconomicactivity.Governmentscansometimesimproveeconomicoutcomes.T

5、ENPRINCIPLESOFECONOMICSTheforcesandtrendsthataffecthowtheeconomyasawholeworks.Thestandardoflivingdependsonacountry’sproduction.Pricesrisewhenthegovernmentprintstoomuchmoney.Societyfacesashort-runtradeoffbetweeninflationandunemployment.Principle#1:PeopleFaceTradeoffs.“Thereisno

6、suchthingasafreelunch!”Makingdecisionsrequirestradingoffonegoalagainstanother.Principle#1:PeopleFaceTradeoffs.Togetonething,weusuallyhavetogiveupanotherthing.Gunsv.butterFoodv.clothingLeisuretimev.workEfficiencyv.equityPrinciple#1:PeopleFaceTradeoffsEfficiencyv.EquityEfficien

7、cymeanssocietygetsthemostthatitcanfromitsscarceresources.Equitymeansthebenefitsofthoseresourcesaredistributedfairlyamongthemembersofsociety.Principle#2:TheCostofSomethingIsWhatYouGiveUptoGetIt.Decisionsrequirecomparingcostsandbenefitsofalternatives.Whethertogotocollegeortowork

8、?Whethertostudyorgooutonadate?Whethertogotoclassorsleepin?The