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Submitted on: 01 October 2007.
Revised on: 28 November 2007.
Accepted on: 30 December 2007.
___________________Journal of Public Finance and Public Choice
Submitted on: 10 March 2015.
Revised on: 28 June 2015.
Accepted on: 27 July 2015.
___________________Journal of Public Finance and Public Choice
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Submitted on: 14 November 2014.
Revised on: 12 March 2015.
Accepted on: 26 April 2015.
___________________Journal of Public Finance and Public Choice
Submitted on: 21 October 2016.
Revised on: 05 January 2017.
Accepted on: 24 January 2017.
___________________Journal of Public Finance and Public Choice