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Submitted on: 02 August 2007.
Revised on: 08 November 2007.
Accepted on: 26 December 2007.
___________________Cambridge Journal of Regions Economy and Society
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Submitted on: 26 October 2005.
Revised on: 14 January 2006.
Accepted on: 06 February 2006.
___________________Cambridge Journal of Regions Economy and Society
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