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If a monopoly faces an inverse demand curve of p equals=390390minus−​Q, has a constant marginal and...

If a monopoly faces an inverse demand curve of p equals=390390minus−​Q, has a constant marginal and average cost of ​$30​, and can perfectly price​ discriminate, what is its​ profit? What are the consumer​ surplus, welfare, and deadweight​ loss? How would these results change if the firm were a​ single-price monopoly?

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