00992nam0-22002891i-450-99000386462040332120130610171614.0000386462FED01000386462(Aleph)000386462FED0100038646220030910d2000----km-y0itay50------baengITExternalities, knowledge, spillovers and the spatial distribution of innovationRaffaele Paci, Stefano Usai[S.l.s.n.]2000Contributi di ricercaCRENoS, Centro ricerche economiche Nord Sud, Università degli studi di Cagliari2000Innovazioni tecnologicheAspetti economiciPaci,Raffaele115539Usai,Stefano122755ITUNINARICAUNIMARCBK990003864620403321PaperSESSESExternalities, knowledge, spillovers and the spatial distribution of innovation514705UNINA