. The following table shows the demand curve facing a monopolist who produces at a constant marginal cost of $6:

PriceQuantity

180

164

148

1212

1016

820

624

428

232

036

a) Calculate the firm's marginal revenue curve.

b) What are the firm's profit-maximizing output and price? What is its profit?

c) What would the equilibrium price and quantity be in a competitive industry?

d) What would the social gain be if this monopolist were forced to produce and price at the competitive equilibrium? Who would gain and lose as a result? Illustrate the difference between the competitive and m