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The United States currently imports allof its coffee. The annual demand for coffee by U.S. consumers is given by thedemand curve Q=250-10P, where Q isquantity (in millions of pounds) and Pis the market price per pound of coffee. World producers can harvest and shipcoffee to U.S.distributors at a constant marginal (=average) cost of $8 per pound. U.S. distributorscan in turn distribute coffee for a constant $2 per pound. The U.S. coffeemarket is competitive. Congress is considering a tariff on coffee imports of $2per pound.
a. If there isno tariff, how much do consumers pay for a pound of coffee? What is thequantity demanded?
b. If the tariffis imposed, how much will consumer pay for a pound of coffee? What is thequantity demanded?
c. Calculate thelost consumer surplus.
d. Calculate thetax revenue collected by the government?
e. Does the tariffresult in a net gain or a net loss to society as a whole?
a.P=10 Q=150
b.P=12 Q=130
c.loss of CS=280
d revenue of government = 260
e loss of society = 20
小弟有没有算错阿
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