Submitted on: 05 April 2020.
Revised on: 18 May 2020.
Accepted on: 08 June 2020.
Revue de l IRES---INST RECHERCHES ECONOMIQUES & SOCIALES-IRES
Submitted on: 22 May 2003.
Revised on: 23 June 2003.
Accepted on: 01 July 2003.
NULL
Submitted on: 13 November 2004.
Revised on: 20 November 2004.
Accepted on: 28 November 2004.
NULL
Submitted on: 29 August 2009.
Revised on: 14 September 2009.
Accepted on: 27 September 2009.
Revue de l IRES---INST RECHERCHES ECONOMIQUES & SOCIALES-IRES
Submitted on: 03 September 2005.
Revised on: 27 September 2005.
Accepted on: 14 October 2005.
NULL
Submitted on: 21 July 2023.
Revised on: 03 August 2023.
Accepted on: 13 August 2023.
Revue de l IRES---INST RECHERCHES ECONOMIQUES & SOCIALES-IRES