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May 23, 2015

Homework Help: Microeconomics

Posted by G on Thursday, September 4, 2008 at 11:17am.

When firms in a perfectly competitive market face the same costs, in the long run they must be operating:

A) Under diseconomis of scale
B) With small but positive levels of profit
C) At their efficient scale
D) All of the above are correct

I picked C?

A competitive market is in long-run equlibrium. If demand decreases, we can be certain that price will:

A) Fall in the short run. All firms will shut down, and some of them will exit the industry, Price will then rise.
B) Fall in the short run. No firms will shut sown, but some of them will exit the industry, Price will then rise.
C) Fall in the short run, All, some, or no firms will shut down, and some of them will ejxit the industry. Price will then rise.
D) Not fall in the short run becasue firms will exit to maintain the price.

I picked C?

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