Submitted on: 19 February 2005.
Revised on: 02 April 2005.
Accepted on: 23 April 2005.
Theoretical Economics
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http://reply.papertrans.cn/3/294/29396/29396-13.png
Submitted on: 15 November 2003.
Revised on: 12 December 2003.
Accepted on: 25 December 2003.
Theoretical Economics
Submitted on: 10 March 2020.
Revised on: 12 April 2020.
Accepted on: 29 April 2020.
Theoretical Economics---ECONOMETRIC SOCIETY
Submitted on: 01 November 2013.
Revised on: 01 December 2013.
Accepted on: 24 December 2013.
Theoretical Economics
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http://reply.papertrans.cn/3/294/29396/29396-18.png
Submitted on: 16 August 2016.
Revised on: 04 September 2016.
Accepted on: 25 September 2016.
Theoretical Economics
Submitted on: 14 December 1999.
Revised on: 15 January 2000.
Accepted on: 05 February 2000.
Theoretical Economics---ECONOMETRIC SOCIETY