Submitted on: 21 March 2007.
Revised on: 21 May 2007.
Accepted on: 03 July 2007.
___________________Financial Markets and Portfolio Management
Submitted on: 23 March 2004.
Revised on: 14 July 2004.
Accepted on: 07 September 2004.
___________________Financial Markets and Portfolio Management
Submitted on: 16 November 2016.
Revised on: 29 December 2016.
Accepted on: 20 January 2017.
___________________Financial Markets and Portfolio Management
Submitted on: 10 May 2004.
Revised on: 02 August 2004.
Accepted on: 10 September 2004.
___________________Financial Markets and Portfolio Management
Submitted on: 30 June 2020.
Revised on: 18 October 2020.
Accepted on: 04 November 2020.
___________________Financial Markets and Portfolio Management
Submitted on: 04 March 2003.
Revised on: 01 July 2003.
Accepted on: 08 August 2003.
___________________Financial Markets and Portfolio Management
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Submitted on: 16 January 1999.
Revised on: 25 February 1999.
Accepted on: 13 April 1999.
___________________Financial Markets and Portfolio Management
http://reply.papertrans.cn/1/98/9777/9777-19.png
Submitted on: 24 January 2016.
Revised on: 15 April 2016.
Accepted on: 05 May 2016.
___________________Financial Markets and Portfolio Management