Question 3 A firm has a marginal cost of $20 and charges a price of $40. The Lerner index for this firm is 0.20 0.50 0.33 0.75

Question 3
A firm has a marginal cost of $20 and charges a price of $40. The Lerner index for this firm is
0.20
0.50
0.33
0.75

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