Submitted on: 16 April 2003.
Revised on: 28 May 2003.
Accepted on: 15 June 2003.
NULL
Submitted on: 08 July 1999.
Revised on: 24 July 1999.
Accepted on: 21 August 1999.
NULL
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Submitted on: 05 January 1999.
Revised on: 15 February 1999.
Accepted on: 27 February 1999.
REICE-Revista Electronica de Investigacion en Ciencias Economicas
Submitted on: 07 April 2010.
Revised on: 08 May 2010.
Accepted on: 26 May 2010.
NULL
Submitted on: 11 November 2008.
Revised on: 06 December 2008.
Accepted on: 23 December 2008.
REICE-Revista Electronica de Investigacion en Ciencias Economicas
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