Submitted on: 20 March 2016.
Revised on: 08 June 2016.
Accepted on: 09 July 2016.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
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Submitted on: 30 March 2013.
Revised on: 26 July 2013.
Accepted on: 04 September 2013.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
Submitted on: 24 April 2018.
Revised on: 16 July 2018.
Accepted on: 31 August 2018.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
Submitted on: 13 May 2018.
Revised on: 03 September 2018.
Accepted on: 20 October 2018.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
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Submitted on: 17 October 2024.
Revised on: 28 November 2024.
Accepted on: 05 January 2025.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
Submitted on: 27 April 2005.
Revised on: 27 July 2005.
Accepted on: 29 August 2005.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO
Submitted on: 15 October 2018.
Revised on: 27 November 2018.
Accepted on: 09 December 2018.
___________________Empirical Economics---PHYSICA-VERLAG GMBH & CO