A firm with market power faces the following estimated demand and average variable cost functions:Qd = 39,000 - 500P + 0.4M - 8,000PRAVC = 30 - 0.005Q + 0.0000005Q2where Qd is quantity demanded, P is price, M is income, and PR is the price of a related good. The firm expects income to be $40,000 and PR to be $2. Total fixed cost is $100,000. What is the estimated marginal revenue function for the firm?

A. MR = 78 - 0.004Q 
B. MR = 48 - 0.002Q 
C. MR = 48 - 0.004Q
D. MR = 78 - 0.002Q


Answer: A

Economics

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