Submitted on: 09 August 2012.
Revised on: 30 November 2012.
Accepted on: 15 December 2012.
___________________Journal of Empirical Finance---ELSEVIER
Submitted on: 23 March 2017.
Revised on: 13 June 2017.
Accepted on: 06 August 2017.
___________________Journal of Empirical Finance---ELSEVIER
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