Suppose a competitive industry has 1,000 identical firms. After years of firms entering and exiting this industry the market is now in a stable equilibrium where all surviving firms are of the optimal size (their fixed costs are exactly such that the long run costs and short run costs are identical). Each firm has a total cost curve of: TC = 2 + 4q + .5q2. This total cost curve implies a marginal cost curve of: MC = 4 + q. a) How much will each firm produce? b) What is the equilibrium price in this market?

Managerial Economics: A Problem Solving Approach
5th Edition
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Chapter9: Market Structure And Long-run Equilibrium
Section: Chapter Questions
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Suppose a competitive industry has 1,000 identical firms. After years of firms entering and exiting this industry the market is now in a stable equilibrium where all surviving firms are of the optimal size (their fixed costs are exactly such that the long run costs and short run costs are identical). Each firm has a total cost curve of: TC = 2 + 4q + .5q2. This total cost curve implies a marginal cost curve of: MC = 4 + q.

a) How much will each firm produce?

b) What is the equilibrium price in this market?

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