Submitted on: 31 July 2012.
Revised on: 17 September 2012.
Accepted on: 10 November 2012.
___________________JOURNAL OF FORECASTING---WILEY
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Submitted on: 26 January 2009.
Revised on: 24 April 2009.
Accepted on: 22 May 2009.
___________________JOURNAL OF FORECASTING---WILEY
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Submitted on: 29 May 2005.
Revised on: 28 June 2005.
Accepted on: 12 August 2005.
___________________JOURNAL OF FORECASTING---WILEY
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Submitted on: 08 January 2012.
Revised on: 27 February 2012.
Accepted on: 17 March 2012.
___________________JOURNAL OF FORECASTING---WILEY