Submitted on: 17 April 2003.
Revised on: 07 June 2003.
Accepted on: 21 June 2003.
___________________FinanzArchiv-European Journal of Public Finance
Submitted on: 15 July 2003.
Revised on: 04 October 2003.
Accepted on: 24 October 2003.
___________________FinanzArchiv-European Journal of Public Finance
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Submitted on: 14 March 2010.
Revised on: 17 June 2010.
Accepted on: 30 July 2010.
___________________FinanzArchiv-European Journal of Public Finance
Submitted on: 14 July 2001.
Revised on: 17 August 2001.
Accepted on: 15 October 2001.
___________________FinanzArchiv-European Journal of Public Finance
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Submitted on: 17 March 2012.
Revised on: 17 May 2012.
Accepted on: 13 June 2012.
___________________FinanzArchiv-European Journal of Public Finance