Submitted on: 17 June 2018.
Revised on: 02 July 2018.
Accepted on: 07 July 2018.
Revista de Historia Economica---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/3/269/26822/26822-32.png
http://reply.papertrans.cn/3/269/26822/26822-33.png
Submitted on: 28 October 2015.
Revised on: 30 November 2015.
Accepted on: 26 December 2015.
Revista de Historia Economica---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/3/269/26822/26822-35.png
http://reply.papertrans.cn/3/269/26822/26822-36.png