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Submitted on: 12 June 2000.
Revised on: 29 September 2000.
Accepted on: 18 October 2000.
___________________BULLETIN OF ECONOMIC RESEARCH---WILEY
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Submitted on: 25 September 2015.
Revised on: 18 November 2015.
Accepted on: 15 December 2015.
___________________BULLETIN OF ECONOMIC RESEARCH---WILEY
Submitted on: 15 November 2010.
Revised on: 08 February 2011.
Accepted on: 23 March 2011.
___________________BULLETIN OF ECONOMIC RESEARCH---WILEY
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Submitted on: 05 July 2021.
Revised on: 18 September 2021.
Accepted on: 02 October 2021.
___________________BULLETIN OF ECONOMIC RESEARCH---WILEY
Submitted on: 06 September 2008.
Revised on: 05 October 2008.
Accepted on: 05 November 2008.
___________________BULLETIN OF ECONOMIC RESEARCH---WILEY