00814nam0-22002891i-450-99000373040040332120001010000373040FED01000373040(Aleph)000373040FED0100037304020000920d1991----km-y0itay50------baitay-------001yyInnovation and growth in the global economyG.M. Grossman , E.HelpmanU.K.The Mitt Press1991359 p.22cmGrossman,Gene M.<1955- >Helpman,Elhanan<1946- >ITUNINARICAUNIMARCBK990003730400403321O3.275544DECTSDECTSInnovation and growth in the global economy501392UNINAING01