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1、HowtoBuildanEconomicModelinYourSpareTimebyHalR.VarianUCBerkeleyDecember1994Currentversion:July25,2009Abstract.ThisisanessayforPassionandCraft:EconomistsatWork,editedbyMichaelSzenberg,UniversityofMichiganPress,1997.Keywords.Address.HalR.Varian,Dean,SchoolofInformationMangementandSystems,UCBerke
2、ley.Webpagehttp://www.sims.berkeley.edu~halHowtoBuildanEconomicModelinYourSpareTimeHalR.VarianMostofmyworkineconomicsinvolvesconstructingtheoreticalmodels.Overtheyears,Ihavedevelopedsomewaysofdoingthisthatmaybeworthdescribingtothosewhoaspiretopracticethisart.Inrealitytheprocessismuchmorehaphaz
3、ardthanmydescriptionwouldsuggest
4、themodelofresearchthatIdescribeisanidealizationofreality,muchliketheeconomicmodelsthatIcreate.Butthereisprobablyenoughconnectionwithrealitytomakethedescriptionuseful
5、whichIhopeisalsotrueformyeconomicmodels.1.GettingideasThe rststepistogetanidea.Thisisnotallthat
6、hardtodo.Thetrickypartistogetagoodidea.Thewayyoudothisistocomeupwithlotsandlotsofideasandthrowoutalltheonesthataren'tgood.Butwheretogetideas,that'sthequestion.Mostgraduatestudentsareconvincedthatthewayyougetideasistoreadjournalarticles.Butinmyexperiencejournalsreallyaren'taverygoodsourceoforig
7、inalideas.Youcangetlotsofthingsfromjournalarticles
8、technique,insight,eventruth.Butmostofthetimeyouwillonlygetsomeoneelse'sideas.True,theymayleaveafewlooseendslyingaroundthatyoucanpickupon,butthereasontheyarelooseisprobablythattheauthorthoughtaboutthemawhileandcouldn't gureoutwhattodowiththemor
9、decidedtheyweretootedioustobotherwith
10、whichmeansthatitislikelythatyouwill ndyourselfinthesamesituation.Mysuggestionisratherdi erent:Ithinkthatyoushouldlookforyourideasoutsidetheacademicjournals
11、innewspapers,inmagazines,inconversations,andinTVandradioprograms.Whenyoureadthenewspaper,lookforthea
12、rticlesabouteconomics:::andthenlookattheonesthataren'tabouteconomics,becauselotsofthetimetheyendupbeingabouteconomicstoo.Magazinesareusuallybetterthannewspapersbecausetheygointoissuesinmoredepth.Ontheotherhand,ashalloweranalysismaybemor
