00867nam0-22002771i-450-9900038425304033210-262-02474-8000384253FED01000384253(Aleph)000384253FED0100038425320011212d2000----km-y0itay50------baGBRUSUnderstaqnding The Digital EconomyData, Tools, and Research<<edited by>> Erik Brynjolfsson <<and>> Brian KahinCambridge,MassachusettsMassachusetts Institute of Technology (MIT)2000401 p23 cmBrynjolfsson,Erik145626Kahin,Brian145627ITUNINARICAUNIMARCBK990003842530403321L01.468480DECTSDECTSUnderstaqnding The Digital Economy507513UNINA