Submitted on: 25 April 2015.
Revised on: 29 May 2015.
Accepted on: 20 June 2015.
Nankai Business Review International
Submitted on: 02 September 2009.
Revised on: 10 October 2009.
Accepted on: 02 November 2009.
Nankai Business Review International
Submitted on: 03 March 2008.
Revised on: 12 March 2008.
Accepted on: 18 March 2008.
Nankai Business Review International
Submitted on: 19 June 2005.
Revised on: 06 July 2005.
Accepted on: 02 August 2005.
Nankai Business Review International
Submitted on: 10 June 2002.
Revised on: 22 June 2002.
Accepted on: 10 July 2002.
Nankai Business Review International
Submitted on: 05 March 2016.
Revised on: 28 March 2016.
Accepted on: 24 April 2016.
Nankai Business Review International
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Submitted on: 07 December 2019.
Revised on: 14 December 2019.
Accepted on: 04 January 2020.
Nankai Business Review International
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