Submitted on: 26 June 2002.
Revised on: 23 July 2002.
Accepted on: 10 August 2002.
___________________International Journal of Financial Engineering
Submitted on: 18 November 2007.
Revised on: 21 February 2008.
Accepted on: 16 March 2008.
___________________International Journal of Financial Engineering
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Submitted on: 14 October 2000.
Revised on: 22 November 2000.
Accepted on: 21 December 2000.
___________________International Journal of Financial Engineering
Submitted on: 04 September 2012.
Revised on: 17 October 2012.
Accepted on: 25 November 2012.
___________________International Journal of Financial Engineering
Submitted on: 28 November 2020.
Revised on: 23 March 2021.
Accepted on: 06 April 2021.
___________________International Journal of Financial Engineering
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Submitted on: 23 June 2021.
Revised on: 15 September 2021.
Accepted on: 20 October 2021.
___________________International Journal of Financial Engineering