Submitted on: 16 September 2017.
Revised on: 08 December 2017.
Accepted on: 31 January 2018.
___________________ENERGY JOURNAL---INT ASSOC ENERGY ECONOMICS
Submitted on: 17 January 2013.
Revised on: 08 March 2013.
Accepted on: 25 April 2013.
___________________ENERGY JOURNAL---INT ASSOC ENERGY ECONOMICS
Submitted on: 08 October 2002.
Revised on: 03 February 2003.
Accepted on: 22 March 2003.
___________________ENERGY JOURNAL---INT ASSOC ENERGY ECONOMICS
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Submitted on: 18 March 2005.
Revised on: 29 May 2005.
Accepted on: 01 July 2005.
___________________ENERGY JOURNAL---INT ASSOC ENERGY ECONOMICS
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Submitted on: 29 April 2005.
Revised on: 13 August 2005.
Accepted on: 03 October 2005.
___________________ENERGY JOURNAL---INT ASSOC ENERGY ECONOMICS
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