Consider a monopolistic firm producing a good with the following cost funciton:
C(y) = ay
where a > 0. The firm faces the following demand function:
D(p) = Bp-n
where B, n > 0. This kind of demand function is known as CES (Constant Elasticity of Substitution).
solve the firm's problem, i.e. compute the equilibrium price and quantity sold by the monopolist.