Submitted on: 15 July 2016.
Revised on: 26 July 2016.
Accepted on: 18 August 2016.
QME-Quantitative Marketing and Economics
Submitted on: 24 July 2019.
Revised on: 21 August 2019.
Accepted on: 30 August 2019.
QME-Quantitative Marketing and Economics
Submitted on: 16 January 2016.
Revised on: 26 February 2016.
Accepted on: 13 March 2016.
QME-Quantitative Marketing and Economics
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http://reply.papertrans.cn/3/259/25851/25851-25.png
Submitted on: 30 April 2004.
Revised on: 07 May 2004.
Accepted on: 22 May 2004.
QME-Quantitative Marketing and Economics
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Submitted on: 11 June 1998.
Revised on: 19 July 1998.
Accepted on: 31 July 1998.
QME-Quantitative Marketing and Economics
Submitted on: 04 October 2019.
Revised on: 02 November 2019.
Accepted on: 26 November 2019.
QME-Quantitative Marketing and Economics