Submitted on: 10 November 2003.
Revised on: 01 February 2004.
Accepted on: 16 March 2004.
___________________Computational Economics---SPRINGER
Submitted on: 14 September 2023.
Revised on: 10 December 2023.
Accepted on: 02 February 2024.
___________________Computational Economics---SPRINGER
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Submitted on: 28 May 2023.
Revised on: 15 July 2023.
Accepted on: 22 August 2023.
___________________Computational Economics---SPRINGER
http://reply.papertrans.cn/1/62/6182/6182-35.png
Submitted on: 12 September 2004.
Revised on: 02 November 2004.
Accepted on: 14 November 2004.
___________________Computational Economics---SPRINGER