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Unformatted text preview: MR is correct by analyzing its components. MR = (100  Q)  Q (100  Q ) is the price according to our market demand curve. This 100  Q represents the marginal revenue brought in by selling the next unit. However, in order to sell the next unit, we had to lower the price by 1 for all units sold (the demand curve has a slope of 1, so the tradeoff between Q and P is 1 for 1). Therefore, on the margin, we lost 1 unit of revenue for all Q units sold. The marginal revenue is then (100  Q )  Q = 100  2* Q . To solve for the monopolistic equilibrium, we find the quantity at which MR = MC . Solving: 100  2 * Q = 10 => Q = 45 At this quantity, the market price would be 100  45 = 55 . Assuming no fixed costs, the profits for this firm would be 45*(55  10) = 2025 . Naturally, this is a vast improvement for the firm over the competitive outcome of zero profits....
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This note was uploaded on 12/13/2011 for the course ECO 1320 taught by Professor Staff during the Fall '11 term at Texas State.
 Fall '11
 staff

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