Submitted on: 24 April 1998.
Revised on: 18 May 1998.
Accepted on: 27 June 1998.
___________________Journal of Business Economics and Management
Submitted on: 19 September 2003.
Revised on: 16 November 2003.
Accepted on: 04 January 2004.
___________________Journal of Business Economics and Management
Submitted on: 15 March 2021.
Revised on: 26 May 2021.
Accepted on: 03 July 2021.
___________________Journal of Business Economics and Management
Submitted on: 17 November 2022.
Revised on: 31 December 2022.
Accepted on: 30 January 2023.
___________________Journal of Business Economics and Management
http://reply.papertrans.cn/2/157/15655/15655-25.png
http://reply.papertrans.cn/2/157/15655/15655-26.png
Submitted on: 14 April 2006.
Revised on: 26 May 2006.
Accepted on: 21 July 2006.
___________________Journal of Business Economics and Management
http://reply.papertrans.cn/2/157/15655/15655-28.png
http://reply.papertrans.cn/2/157/15655/15655-29.png
http://reply.papertrans.cn/2/157/15655/15655-30.png