Question 4 Two consumers, Smith and Jones, have the following demand curves for Podunk Public Radio broadcasts of recorded opera on Saturdays: Smith: Ps = 12 - Q Jones: PJ = 12 - 2Q Where Ps and PJ represent marginal willingness-to-pay values for Smith and Jones, respectively, and Q represents the number of hours of opera broadcast each Saturday. (a) If Smith and Jones are the only public radio listeners in Podunk, construct the demand curve for opera broadcasts. (b) If the marginal cost of opera broadcasts is a constant amount of $15, what is the socially optimal number of hours of broadcast opera