http://reply.papertrans.cn/3/294/29396/29396-21.png
Submitted on: 09 December 2000.
Revised on: 05 January 2001.
Accepted on: 13 January 2001.
Theoretical Economics
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http://reply.papertrans.cn/3/294/29396/29396-24.png
Submitted on: 15 January 2004.
Revised on: 08 February 2004.
Accepted on: 19 February 2004.
Theoretical Economics---ECONOMETRIC SOCIETY
http://reply.papertrans.cn/3/294/29396/29396-26.png
Submitted on: 18 March 1998.
Revised on: 18 April 1998.
Accepted on: 24 April 1998.
Theoretical Economics
http://reply.papertrans.cn/3/294/29396/29396-28.png
Submitted on: 10 January 2022.
Revised on: 14 February 2022.
Accepted on: 08 March 2022.
Theoretical Economics
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