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A simulation study of DEA and parametric frontier models in the presence of heteroscedasticity

Banker, Rajiv D.; Chang, Hsihui; Cooper, William W. - In: European Journal of Operational Research 153 (2004) 3, pp. 624-640

Persistent link: https://www.econbiz.de/10005347189

Using Malmquist Indexes to measure changes in the productivity and efficiency of US accounting firms before and after the Sarbanes-Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Omega 37 (2009) 5, pp. 951-960

There have been many criticisms of the Sarbanes-Oxley (SOX) Act passed in July of 2002 to correct business accountability and performance practices. The act has a major emphasis on accounting and its practices. This paper attempts a response to these criticisms by investigating changes in...

Persistent link: https://www.econbiz.de/10005333846

Equivalence and implementation of alternative methods for determining returns to scale in data envelopment analysis

Banker, Rajiv D.; Chang, Hsihui; Cooper, William W. - In: European Journal of Operational Research 89 (1996) 3, pp. 473-481

Persistent link: https://www.econbiz.de/10005253250

Measuring productivity growth, technical progress, and efficiency changes of CPA firms prior to, and following the Sarbanes-Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Socio-Economic Planning Sciences 43 (2009) 4, pp. 221-228

This paper investigates productivity growth, technical progress, and efficiency change for a group of the 56 largest CPA firms in the US from the period 1996-1999 through the period 2003-2006, where the former preceded, and the latter followed, enactment of the Sarbanes-Oxley Act (SOX). Data...

Persistent link: https://www.econbiz.de/10005067106

Using Malmquist Indexes to measure changes in the productivity and efficiency of US accounting firms before and after the Sarbanes-Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Omega : the international journal of management science 37 (2009) 5, pp. 951-960

Persistent link: https://www.econbiz.de/10003861892

The Sarbanes-Oxley Act and the production efficiency of public accounting firms

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; Lin, … - In: New frontiers in enterprise risk management, (pp. 145-161). 2008

Persistent link: https://www.econbiz.de/10003709353

A simulation study of DEA and parametric frontier models in the presence of heteroscedasticity

Banker, Rajiv D.; Chang, Hsihui; Cooper, William W. - In: European journal of operational research : EJOR 153 (2004) 3, pp. 624-640

Persistent link: https://www.econbiz.de/10006648570

Measuring productivity growth, technical progress, and efficiency changes of CPA firms prior to, and following the Sarbanes–Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Socio-economic planning sciences : the international … 43 (2009) 4, pp. 221-228

Persistent link: https://www.econbiz.de/10008285677

Measuring producitivity growth, technical progress, and efficiency changes of CPA firms proir to, and following the Sarbanes-Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Socio-economic planning sciences : the international … 43 (2009) 4, pp. 221-228

Persistent link: https://www.econbiz.de/10003893723

Measuring productivity growth, technical progress, and efficiency changes of CPA firms prior to, and following the Sarbanes–Oxley Act

Chang, Hsihui; Choy, Hiu Lam; Cooper, William W.; … - In: Socio-economic planning sciences : the international … 43 (2009) 4, pp. 221-229

Persistent link: https://www.econbiz.de/10008882980