QXd = 14 - (1/2)PX and QXs = (1/4)PX - 1
a. Determine the equilibrium price and quantity. Show the equilibrium graphically.
b. Suppose a $12 excise tax is imposed on the good. Determine the new equilibrium price and quantity.
Equilibrium price: $
Equilibrium quantity:
c. How much tax revenue does the government earn with the $12 tax?