00421pab a2200145 454500008004000000100002300040245004800063260000900111300001100120362000800131650003700139650004300176650002700219773002900246180718b2001   xxu||||| |||| 00| 0 eng d  aJorgenson, Dale W.  aInformation technology and the U.S. economy  c2001  ap.1-32  aMar  aEconomic systems - United States  aInformation technology - United States  aInformation technology  aAmerican Economic Review