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Author Question: Two firms compete in a market by selling imperfect substitutes. The demand equations are given by ... (Read 18 times)

londonang

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on: Jul 1, 2018
Two firms compete in a market by selling imperfect substitutes. The demand equations are given by the following equations:
 
  Q1 = 50 - p1 + p2
   Q2 = 50 - p2 + p1
  For now, assume that each firm has a marginal cost and average cost of 0.
  a. From the equations, how can you tell these goods are substitutes? How can you tell they are imperfect substitutes?
  b. Suppose the firms compete by simultaneously choosing price. Find the best response function of each firm as a function of the other firm's price.
  c. Compute the equilibrium price and quantity for each firm.
  d. Suppose firm 1 (and only firm 1 ) had a marginal and average cost of 10. How would the equilibrium change? How does this compare to the Bertrand result when the firms sell perfect substitutes?

Question 2

Which of the following belongs to the government regulation to control pollution?
 
  A) emissions standard
  B) emissions fee
  C) effluent charge
  D) All of the above


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Christopher

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Reply #1 on: Jul 1, 2018
Answer to Question 1

a. The price of the other good increases the firm's own demand.
b. pi = (pj +50)/2
c. p = 50 = Q
d. It would shift out that firm's BR function, but it would still be able to compete.
Demand curves are downward slopingnot horizontal. The firm with the higher marginal cost is not forced out of the market necessarily.

Answer to Question 2

D


londonang

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Reply 2 on: Jul 1, 2018
Gracias!

strudel15

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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