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Submitted on: 22 June 2003.
Revised on: 21 July 2003.
Accepted on: 14 August 2003.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
Submitted on: 23 November 2016.
Revised on: 13 December 2016.
Accepted on: 24 December 2016.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
Submitted on: 30 June 2002.
Revised on: 06 August 2002.
Accepted on: 27 August 2002.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
Submitted on: 14 October 2020.
Revised on: 16 November 2020.
Accepted on: 02 December 2020.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
Submitted on: 29 March 2014.
Revised on: 15 April 2014.
Accepted on: 24 April 2014.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS
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http://reply.papertrans.cn/3/239/23885/23885-28.png
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Submitted on: 28 April 2002.
Revised on: 28 May 2002.
Accepted on: 04 June 2002.
OXFORD BULLETIN OF ECONOMICS AND STATISTICS