In the trade scenario in problem 1, due to over?shing, Norway becomes unable to catch the quantity of ?sh that it could in previous years. This change causes both a reduction in the potential quantity of ?sh that can be produced in Norway and an increase in the relative world price for ?sh, Pf /Pa.
a. Show how the over?shing problem can result in a decline in welfare for Norway.
b. Also show how it is possible that the over?shing problem could result in an increase in welfare for Norway.