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In the Land of Hialeah the supply curve for roses is given by

and the demand curve for roses is given by

A. What are the equilibrium price and quantity? P Q
P=10, Q=5

B. What is the price elasticity of demand at the equilibrium price and quantity?
elasticity = -1

C. Suppose that a $.50 excise tax (i.e. a per unit tax) is collected from the supplier. What will be the new equilibrium price and quantity?
P  Q
P=10.37, Q=4.812

D. What is the change in price paid by the consumer
between parts A. and C.?
.375

E. What is the change in the price received by the seller, net of taxes?
.125