A competitive industry consists of 100 firms. The short-run marginal cost curve for each firm is given by MC=200+30Q.
(a) What is the supply function for each firm?
(b) What is the market supply function?
(c) Suppose that the market demand function is P = 400 0.1Q. Calculate the market equilibrium price and quantity.
(d) Calculate the elasticity of supply at the market equilibrium.