1Brynjolfsson,E.:The Productivity Paradox of Information Technology,Communications of the ACM,36(12):67-77,1993.
2Kettinger,W.and Grover,V.:Strategic Information Systems Revisited:A Study in Sustainability and Performance,MIS Quarterly,18(1):31-58,1994.
3Carr,N.G:IT Doesn't Matter,Harvard Business Review,71(5):41-49,2003.
4Lichtenberg,F.:The Output Contributions of Computer Equipment and Personnel:A Firm-Level Analysis,NBER Working Paper No.4540,1993.
5Dewan S.and Kraemer,K.L.:International Dimensions of the Productivity Paradox,Communications of the ACM,41(8):56-62,1998.
6Shao,B.B.M.and Lin,W.T.:Measuring the Value of Information Technology in Technical Efficiency with Stochastic Production Frontiers,Decision Support Systems,43(7):447-456,2001.
7Hansen,B.E.:Threshold Effects in Non-dynamic Panels:Estimation,Testing and Inference,Journal of Econometrics,93(2):345-368,1999.
