Consider a market where demand is P = 10 - 2Q and supply is P =
Q/2. There is a consumption positive externality of $2.50/unit of
consumption
a. Calculate the market equilibrium.
b. What is the social optimum quantity and price?
c. If the government uses a tax to get producers to internalize
their externality, what is the net price received by producers?
d. Calculate the total surplus in the market equilibrium, at the
social optimum and with the tax....