00951nam0 2200277 450 00002366020090227104039.0044470207520090227d1987----km-y0itay50------baengNLy-------001yyUnderstanding technical change as an evolutionary processRichard R. NelsonAmsterdamNorth Holland1987VIII, 125 p.20 cmLectures in economics82001Lectures in economicsUnderstanding technical change as an evolutionary process35054Progresso tecnicoAspetti economici338.0619Efficacia produttivaNelson,Richard Robinson106425ITUNIPARTHENOPE20090227RICAUNIMARC000023660641/76289NAVA2Understanding technical change as an evolutionary process35054UNIPARTHENOPE