Submitted on: 20 June 2018.
Revised on: 29 August 2018.
Accepted on: 18 October 2018.
___________________Journal of Financial Econometrics
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Submitted on: 15 December 2007.
Revised on: 10 March 2008.
Accepted on: 13 April 2008.
___________________Journal of Financial Econometrics
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Submitted on: 10 December 2005.
Revised on: 25 February 2006.
Accepted on: 23 March 2006.
___________________Journal of Financial Econometrics
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