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ID:22036982
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页数:7页
时间:2018-10-26
《浅论aging and productivity among economists》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、浅论AGINGANDPRODUCTIVITYAMONGECONOMISTSAbstract--Economists'productivityovertheircareersandasmeasuredbypublicationinleadingjournalsdeclinesverysharplyittedtoaleadingjournalongtheverytoppublishersthanamongothers,andtheprobabilityofacceptanceisincreasinglyrelatedtotheauthor'squalityrathe
2、rthantheauthor'sage.Itisan(1953)suggestsanearlypeakinproductivityinavarietyofscientificandartisticendeavors,andDiamond(1986)documentsthepatternforseveralscholarlypursuits.LevinandStephan(1992)provideclearevidencethatthisdeclineexistsevenaftercarefulattemptstoaccountforindividualandco
3、hortdifferences.Fair(1994)findsdeclinesinphysicalabilityamongeliterunners,asdoesLydall(1968,pp.113passim)inphysicalabilitiesofthepopulationgenerally.Inthisstudyineproductivitydeclinesinouroainneouruseoftation,theequivalentofhouseholdandestablishmentdata,tostudythestonefieldoveressent
4、iallythesameperiodoftime.SectionIdiscussesthegeneralresultsonagingandproductivity,portanceofheterogeneity.I.DecliningProductivityedium-normal>UsingtheAmericanEconomicAssociation(AEA)DirectoryofMembers,icsfacultyat17topresearchinstitutionsandobtainedtheyearsoftheirPh.D.degrees.[1icLit
5、eratureistscurrentlyintheeconomicsdepartmentsofthoseinstitutionsedium-normal>Tomeasureproductivitysofsalarydetermination,thereturnsfromnonreferredpublicationsarequiteloeasures.I1ongjournals.Forexample,theJournalofPoliticalEconomyhasaicInquiryhasaeongjournalsbyassigningallarticlesinth
6、enine"core"journalsidentifiedbyLabandandPietteavalueof1,icreturnstocoauthorship.[4easurethechangeinproductivityoverthelifecyclebythepercentagechangeinthenumberofpublicationsfrom9-10yearspastthePh.D.totheperiods14-15yearsandthen19-20yearsafter.Formostoftheeliteeconomiststhebaseperiodi
7、sequivalent(accountingforpublicationlags)tothetimeoftenure,ightexpectthatincentivestoproduceareatapeak.Usingtancemeasures.Onemightarguethatstillotherscientificlife-cyclemileposts(e.g.,attainingafullprofessorship)shouldbeaccountedfortoo(andtosomeextentthe14-15-yearpointdoesthis).Butou
8、rmainpurpose
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