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Submitted on: 07 May 1999.
Revised on: 26 May 1999.
Accepted on: 21 June 1999.
QME-Quantitative Marketing and Economics
Submitted on: 18 August 2009.
Revised on: 29 September 2009.
Accepted on: 12 October 2009.
QME-Quantitative Marketing and Economics
Submitted on: 20 October 2001.
Revised on: 14 November 2001.
Accepted on: 28 November 2001.
QME-Quantitative Marketing and Economics
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Submitted on: 07 December 2014.
Revised on: 03 January 2015.
Accepted on: 26 January 2015.
QME-Quantitative Marketing and Economics
Submitted on: 22 July 2022.
Revised on: 15 August 2022.
Accepted on: 28 August 2022.
QME-Quantitative Marketing and Economics