There are three groups in a community. Their demand curves for public television in hours of programming, T, are given respectively by
W1 =$200−T W2 =$240−2T W3 =$320−2T.
Suppose public television is a pure public good that can be produced at a constant marginal cost of $200 per hour.
(a) What is the efficient number of hours of public television?
(b) How much public television would a competitive private market provide?