Demand curve 100 Marginal revenue Long run average cost Long run marginal cost Figure 8.5 The exhibit depicts demand and costs for a monopolistically competitive firm. If the firm's demand curve shifts to the left as more firms enter the market, A the firm's profit will be smaller at the new profit maximizing output level. the firm's profit will be greater at the new profit maximizing output level. C) There is not sufficient information. the firm's profit will remain the same at the new profit maximizing output level.

The accompanying graph depicts average total cost (ATC) marginal cost (MC), marginal revenue (M), and demand (D) 50 facing a monopolistically competitive firm MC 45 Place point A at the firm's profit maximizing price and quantity 40 35 What is the firm's total cost? ATC 30 25 total cost: 20 15 What is the firm's total revenue? 10 5 total revenue: $ MR 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95100 Quantity What is the firm's total profit? profit: $ Price and Cost ($)

Q. 2

WataDine is one of a city’s many restaurants that serve lunch and dinner in a monopolistically competitive market. Assume WataDine, as a typical restaurant in the city, is currently producing the profit-maximizing output level, and earns positive short-run economic profit. (a) How is monopolistic competition similar to each of the following market structures? (i) Perfect competition (ii) Monopoly (b) WataDine is currently earning short-run economic profits. Draw a correctly labeled graph for WataDine in short-run equilibrium and show each of the following. (i) The profit-maximizing quantity, labeled QM (ii) The profit-maximizing price, labeled PM (c) Given that WataDine is currently earning short-run economic profits, what will happen to each of the following in the long run? (i) WataDine's economic profit. Explain. (ii) WataDine's demand curve for its restaurant meals. (d) Assume WataDine is in long-run equilibrium. (i) Is WataDine taking advantage of its economies of scale? Explain.…