Consider the problem of a monopolist producing water at a constant marginal cost of$10per kiloliter. The preferences
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Question:
- Consider the problem of a monopolist producing water at a constant marginal cost of$10per kiloliter. The preferences of every household are separable in water and money, and households valuexkiloliters of water according to the functionu(x) = 100 log(x+ 1). Hence, their utility when purchasingxkiloliters at a total pricepsimply amounts tou(x)-p.
(a)First suppose that the monopolist can offer contracts which specify the water supply to a household and the total price charged for this supply. Find the profit-maximizing contract offered to households.
(b)Next suppose that the monopolist can only specify a price per kiloliter at which water is sold and that households then choose how many kiloliters to purchase. Find the profit- maximizing price set by the monopolist and the water supply to households at such a price.
(c)Compare the utility of households and the profits of the monopolist in parts (a) and (b). Comment on eficiency and fairness of outcomes in both settings.
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