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  Author Title Year Publication Volume Pages Links
Chang, H.; Choy, H.L.; Cooper, W.W.; Ruefli, T.W. Using Malmquist Indexes to measure changes in the productivity and efficiency of US accounting firms before and after the Sarbanes-Oxley Act 2009 Omega 37 951-960 details   doi
Chang, H.; Choy, H.L.; Cooper, W.W.; Parker, B.R.; Ruefli, T.W. Measuring productivity growth, technical progress, and efficiency changes of CPA firms prior to, and following the Sarbanes-Oxley Act 2009 Socio-Economic Planning Sciences 43 221-228 details   doi
Barua, A.; Brockett, P.L.; Cooper, W.W.; Deng, H.; Parker, B.R.; Ruefli, T.W.; Whinston, A. DEA Evaluations of Long- and Short-Run Efficiencies of Digital vs. Physical Product ’Dot Com’ Companies 2004 Socio-Economic Planning Sciences 38 233-253 details   doi
Thore, S.; Phillips, F.; Ruefli, T.W.; Yue, P. DEA and the management of the product cycle: the U.S. computer industry 1996 Computers and Operations Research 23 341-356 details   doi
Charnes, A.; Cooper, W.W.; Divine, D.; Ruefli, T.W.; Thomas, D. Comparisons of DEA and existing ratio and regression systems for effecting efficiency evaluations of regulated electric co 1989 Research in Governmental and Nonprofit Accounting 5 187-210 details   openurl
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