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Submitted on: 14 July 1998.
Revised on: 10 August 1998.
Accepted on: 02 September 1998.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
Submitted on: 01 April 2008.
Revised on: 21 May 2008.
Accepted on: 04 June 2008.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
Submitted on: 02 December 2004.
Revised on: 30 March 2005.
Accepted on: 18 May 2005.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
Submitted on: 03 November 2002.
Revised on: 20 December 2002.
Accepted on: 17 January 2003.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
Submitted on: 07 November 1998.
Revised on: 05 February 1999.
Accepted on: 01 April 1999.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
Submitted on: 12 July 2013.
Revised on: 24 September 2013.
Accepted on: 30 October 2013.
___________________JOURNAL OF PRODUCTIVITY ANALYSIS
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