Submitted on: 21 December 2008.
Revised on: 13 April 2009.
Accepted on: 24 April 2009.
___________________Journal of Business Economics and Management
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Submitted on: 20 August 2006.
Revised on: 13 October 2006.
Accepted on: 12 November 2006.
___________________Journal of Business Economics and Management
Submitted on: 14 October 2014.
Revised on: 11 November 2014.
Accepted on: 16 December 2014.
___________________Journal of Business Economics and Management
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Submitted on: 29 May 2000.
Revised on: 20 July 2000.
Accepted on: 10 August 2000.
___________________Journal of Business Economics and Management
Submitted on: 20 August 2003.
Revised on: 22 September 2003.
Accepted on: 18 October 2003.
___________________Journal of Business Economics and Management
Submitted on: 22 March 2004.
Revised on: 29 May 2004.
Accepted on: 12 July 2004.
___________________Journal of Business Economics and Management
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