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Submitted on: 03 February 2008.
Revised on: 03 May 2008.
Accepted on: 21 May 2008.
___________________CANADIAN JOURNAL OF AGRICULTURAL ECONOMICS-REVUE CANADIENNE D AGROECONOMIE
Submitted on: 07 February 1999.
Revised on: 30 May 1999.
Accepted on: 17 June 1999.
___________________CANADIAN JOURNAL OF AGRICULTURAL ECONOMICS-REVUE CANADIENNE D AGROECONOMIE
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