P-price: Q-quantity: MC-marginal cost: AC-average cost:Dsr-demand in short run: Psr-price in short run: MRsr-marginal revenue in short run: ACsr-average cost in short run
in the short run a monopolist can have income or loss, because monopolist does not adapt. Whether he receives income or loss depends on changes in demand. The graph shows situation when monopolist has profit.
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