FIGURE 13.1 A monopolistically competituve firm: short run and long run. The monopolistic competitor maximizes profit or minimizes loss by producing the output at which MR = MC. The economic profit shown in (a) will induce new firms to enter, eventually eliminating economic profit. The loss shown in (b) will cause an exit of firms until normal profit is restored. After such entry and exit, the price will settle in (c) to where it just equals average total cost at the MR = MC output. At this price P, and output Q, the monopolistic competitor earns only a normal profit, and the industry is in long-run equilibrium. MC ATC Economic profit MR = MC MR Q, Quantity (a) Short-run profits MC ATC ATC MC Loss D2 MR = MC MR MR = MC MR Q3 Quantity Quantity (C) Long-run equilibrlum (b) Short-run losses Price and costs Price and costs Price and costs
1. Price exceeds MC in: a. graph (a) only. b. graph (b) only. c. graphs (a) and (b) only. d. graphs (a), (b), and (c). 2. Price exceeds
c. producing at the same level of output as a purely competitive firm. d. producing a standardized product. 4. Which of the following pairs are both “competition-like elements” in
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