00908nam0-22003131i-450-99000370984040332120001010044824170000370984FED01000370984(Aleph)000370984FED0100037098420000920d1996----km-y0itay50------baitay-------001yyInternational productivity differencesmeasurement and explanationsKarin Wagner, Bart van ArkAmsterdamElsevier Science1996325 pp.18 cmContributions to economic analysis ; 233Wagner,Karin140742Ark,Van BartITUNINARICAUNIMARCBK990003709840403321O4.256850DECTSDECTSInternational productivity differences500687UNINAING01