A Competitive Market Is in Long-Run Equilibrium

question 251

Multiple Choice

A competitive market is in long-run equilibrium. If demand increases, we can be certain that price will

• A)rise in the short run. Some firms will enter the industry. Price will then rise to reach the new long-run equilibrium.
• B)rise in the short run. Some firms will enter the industry. Price will then fall to reach the new long-run equilibrium.
• C)fall in the short run. All, some, or no firms will shut down, and some of them will exit the industry. Price will then rise to reach the new long-run equilibrium.
• D)not rise in the short run because firms will enter to maintain the price.

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