Average total cost $ Quantity 100
$ Total-revenue curve Total revenue $ Q ElasticInelastic Demand and marginal-revenue curve Price
Price, costs, and revenue Quantity Q $200
Average total costs Quantity ATC x ATC 1 ATC x’ ATC 2 Q2Q2 Q1Q1 0
Price and costs A1A1 P1P1 Q1Q1 Q1Q1 Q2Q2 A2A2 Single-price monopolistPerfectly discriminating monopolist
Price and costs (dollars) Quantity QmQm QfQf QrQr PrPr PfPf PmPm