文档介绍：Discussant’sCommentson ’s:ASpatialVARApproach byKlausNeusserHanna-LeenaMännistöBankofFinlandCEPR-Workshop,Helsinki28-29Nov2005Osastolyhenne/päiväysMotivationWhatcausesbusinesscycles?TheauthorexpectstofindjointevolutionofgrowthratesofsectoralTFP'sdueto-Marshallianexternalitiesorspillovers-Lackofsubstitutabilityineachsector'sinputs-Aggregation2Osastolyhenne/päiväysModellingstrategyNBER-,458sectorsTheeffectasectorhasonanotherdependsonthe"economicdistance"betweenthem-inputfactorshares(avg1958-1996)-input-outputtables(1987)Twospecifications,SVARXandARSXautocorrelationandlaggedeffectacrosssectorsexogenousaggregatevariablestocountforthecyclicalvariationincapacityutilizationMarshallianexternalitiesquantifieddirectly3Osastolyhenne/päivä-plementaritiesamongsectoraltechnologyshocks4Osastolyhenne/mentsEmpiricalfindingsseemtobeagainstauthor’smotivationandagainstdiscussant’sintuitionHowtoreconcilethem,say,withliteratureontechnologydiffusion? Eaton&Kortum,IER40(3),1999 Innovativecountriesarethemostproductive,,petitionandTrade5(1)2005R&D,Internationaltradeandcreativedest