18. As a manager of a chain of movie theaters that are monopolies in their respective markets, you have noticed much higher demand on weekends than during the week. You therefore conducted a study that has revealed two different demand curves at your movie theaters. On weekends, the inverse demand function is P=15-0.001Q; on weekdays, it is P=10-0.001Q. You acquire legal rights from movie producers to show their films at a cost of $20,000 per movie, plus a $2 "royalty" for each moviegoer entering your theaters (the average moviegoer in your market watches a movie only once). Devise a pricing strategy to maximize your firm's profit

19.Many home improvement retailers like Home Depot and Lowes have lowprice guarantee policies. At a minimum, these guarantees promise to match a rival's price, and some promise to beat the lowest advertised price by a given percentage. Do these types of pricing strategies result in cutthroat Bertrand competition and zero economic profits? If not, why not? If so, suggest an alternative pricing strategy that will permit these firms to earn positive economic profits.