Submitted on: 04 July 2013.
Revised on: 17 October 2013.
Accepted on: 03 December 2013.
___________________China Finance Review International
Submitted on: 27 August 2002.
Revised on: 17 November 2002.
Accepted on: 07 December 2002.
___________________China Finance Review International
http://reply.papertrans.cn/1/53/5259/5259-33.png
http://reply.papertrans.cn/1/53/5259/5259-34.png
http://reply.papertrans.cn/1/53/5259/5259-35.png
Submitted on: 26 April 2021.
Revised on: 16 August 2021.
Accepted on: 02 October 2021.
___________________China Finance Review International