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Submitted on: 26 May 2009.
Revised on: 03 July 2009.
Accepted on: 18 August 2009.
___________________JOURNAL OF ECONOMIC HISTORY---CAMBRIDGE UNIV PRESS
Submitted on: 26 May 2017.
Revised on: 11 September 2017.
Accepted on: 14 October 2017.
___________________JOURNAL OF ECONOMIC HISTORY---CAMBRIDGE UNIV PRESS