hw help please

1. Assume that C(x,y) = 11+x+y C(x,0) =6+x C(0,y) =8+y (a) Is this industry a natural monopoly? Does the industry exhibit economies of scope? Explain. Let pX and py denote the prices of x and y respectively. Suppose that the demands are P(z) = 6 4a: and _ 6 iprS3 y 0 ifpy>3 (b) Find the prices an unregulated monopoly will charge. (0) Describe the rst best regulatory scheme. (01) Explain What Ramsey prices are and then nd the Ramsey prices. (e) Do these Ramsey prices involve cross subsidy? Explain. (f) Show that the above regulatory scheme provides rms with an incentive to enter one of the monopolist's markets