Submitted on: 28 February 2021.
Revised on: 18 April 2021.
Accepted on: 03 June 2021.
___________________Investigaciones de Historia Economica
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Submitted on: 22 August 2005.
Revised on: 25 October 2005.
Accepted on: 17 November 2005.
___________________Investigaciones de Historia Economica