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Submitted on: 27 February 1999.
Revised on: 06 May 1999.
Accepted on: 12 June 1999.
___________________Journal of Policy History---CAMBRIDGE UNIV PRESS
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Submitted on: 14 January 1999.
Revised on: 30 March 1999.
Accepted on: 26 May 1999.
___________________Journal of Policy History---CAMBRIDGE UNIV PRESS