15 of 38 The following production possibilities schedule shows the quan of buckwheat and corn that can be produced in the United States and Canada with one unit of equivalent resources. Corn Buckwheat (bushels) (bushels) 12 United States 51 Canada 25 7. For both countries to be able to gain from trade, Canada would not gain by producing and exporting corn and importing buckwheat unless it received OA an quantity of buckwheat OB. more than 7 bushels of com OC more than 4.25 bushels of buckwheat per bushel of com Dore than 3.57 bushels of buckwheat per bushel of com