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Submitted on: 17 September 2000.
Revised on: 16 October 2000.
Accepted on: 28 October 2000.
___________________Competition & Change---SAGE PUBLICATIONS LTD
Submitted on: 30 June 2000.
Revised on: 21 July 2000.
Accepted on: 03 August 2000.
___________________Competition & Change---SAGE PUBLICATIONS LTD