Suppose the market for wine in the U.S is characterized by :
Qd = 100-20P (demand)
Qs = 20+20P (Supply )
the market for wine in the rest of the world is characterized by :
Qd = 80-20P (Demand)
Qs = 40+20P (Supply)
Calculate the deadweight loss if the U.S Imposes a prohibtive tariff per unit of imported wine
(Note : P = price per unit; Qd = billions of units demanded; Qs = billions of units supplied)