1. Best responses in a Cournot Oligopoly Firm A and Firm B sell identical goods Total market demand for the good is: The inverse demand function is therefore Q(P) = 35, 100 - 45P P(QM) = 780 1 |—— 45 = 780 -0.02222QM QM is total market production (i.e., combined production of firm's A and B. That is: QM = A +QB As a result, the inverse demand curve for each firm is: 1 1 P(Q₁, QB) = 780-5₁528 -QB = 780 -0.022220A-0.02222QB 45 45 Unlike the example in class, the two firms have different costs. TCA (QA) = 400QA TCB (QB) = 260QB a. Using the demand function and the cost functions above, what is firm A's profit function. b. Using the profit function above and assuming that firm B produces QB, calculate what firm A's best response is to firm B's decision to produce QB. Note: Firm A's best response should be a function of B
1. Best responses in a Cournot Oligopoly Firm A and Firm B sell identical goods Total market demand for the good is: The inverse demand function is therefore Q(P) = 35, 100 - 45P P(QM) = 780 1 |—— 45 = 780 -0.02222QM QM is total market production (i.e., combined production of firm's A and B. That is: QM = A +QB As a result, the inverse demand curve for each firm is: 1 1 P(Q₁, QB) = 780-5₁528 -QB = 780 -0.022220A-0.02222QB 45 45 Unlike the example in class, the two firms have different costs. TCA (QA) = 400QA TCB (QB) = 260QB a. Using the demand function and the cost functions above, what is firm A's profit function. b. Using the profit function above and assuming that firm B produces QB, calculate what firm A's best response is to firm B's decision to produce QB. Note: Firm A's best response should be a function of B
Chapter15: Imperfect Competition
Section: Chapter Questions
Problem 15.3P
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