Submitted on: 20 March 2007.
Revised on: 01 May 2007.
Accepted on: 18 May 2007.
OXFORD ECONOMIC PAPERS-NEW SERIES
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Submitted on: 22 June 2000.
Revised on: 17 July 2000.
Accepted on: 09 August 2000.
OXFORD ECONOMIC PAPERS-NEW SERIES
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Submitted on: 13 December 2011.
Revised on: 20 January 2012.
Accepted on: 07 February 2012.
OXFORD ECONOMIC PAPERS-NEW SERIES
Submitted on: 29 December 2001.
Revised on: 19 January 2002.
Accepted on: 30 January 2002.
OXFORD ECONOMIC PAPERS-NEW SERIES
Submitted on: 14 April 2007.
Revised on: 28 April 2007.
Accepted on: 24 May 2007.
OXFORD ECONOMIC PAPERS-NEW SERIES
Submitted on: 09 November 2015.
Revised on: 15 December 2015.
Accepted on: 22 December 2015.
OXFORD ECONOMIC PAPERS-NEW SERIES
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