Two firms with differentiated products are competing in price. Firm A and B face the following demand curves: Q_A = 70 − 2P_A + P_B and Q_B = 120 − 2P_B + P_A respectively. Assume production is costless. a. Give equations for and graph each firm’s reaction curve. b. If both firms set their prices at the same time, what is the Nash equilibrium price, quantity, and profit for each firm? c. Suppose A sets its price first and then B responds. What price and quantity does each firm set now? Is it advantageous to move first? d. Compare the profits from part b and c. Which firm benefits more from the sequential price choosing?

Two firms with differentiated products are competing in price. Firm A and B face the following demand curves: Q_A = 70 − 2P_A + P_B and Q_B = 120 − 2P_B + P_A respectively. Assume production is costless. a. Give equations for and graph each firm’s reaction curve. b. If both firms set their prices at the same time, what is the Nash equilibrium price, quantity, and profit for each firm? c. Suppose A sets its price first and then B responds. What price and quantity does each firm set now? Is it advantageous to move first? d. Compare the profits from part b and c. Which firm benefits more from the sequential price choosing?

Microeconomic Theory

12th Edition

ISBN:9781337517942

Author:NICHOLSON

Publisher:NICHOLSON

Chapter15: Imperfect Competition

Section: Chapter Questions

Problem 15.3P

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Which statement best describes a Nash equilibrium applies to price competition? 1. Two firms cooperate and set the price that maximizes joint profits. 2. Each firm automatically moves to the purely competitive equilibrium because it knows the other firm will eventually move to that price away. 3 given the prices chosen by its competitors, no firm has an incentive to change their prices from the equilibrium level. 4. One dominant firm sets the price, and the other firms take that’s price as if it were given by the market. 5. None of the above.
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