Which of the following statements is NOT correct? O The long-run total cost curve is the lower envelope of all the short-run total cost curves. O The marginal cost curve intersects average variable cost (AVC) and average total cost (ATC) at the minimum of ATC and AVC. O The long-run average total cost curve must be the lower envelope of all of the firm's short-run average total cost curves. O In the short run where capital is fixed, to minimize the cost, the necessary condition is the technical rate of substitution equals to input price ratio.

ECON MICRO
5th Edition
ISBN:9781337000536
Author:William A. McEachern
Publisher:William A. McEachern
Chapter7: Production And Cost In The Firm
Section: Chapter Questions
Problem 3.7P
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Which of the following statements is NOT correct?
O The long-run total cost curve is the lower envelope of all the short-run total cost curves.
O The marginal cost curve intersects average variable cost (AVC) and average total cost (ATC) at the minimum of ATC and AVC.
O The long-run average total cost curve must be the lower envelope of all of the firm's short-run average total cost curves.
O In the short run where capital is fixed, to minimize the cost, the necessary condition is the technical rate of substitution equals to input price ratio.
Transcribed Image Text:Which of the following statements is NOT correct? O The long-run total cost curve is the lower envelope of all the short-run total cost curves. O The marginal cost curve intersects average variable cost (AVC) and average total cost (ATC) at the minimum of ATC and AVC. O The long-run average total cost curve must be the lower envelope of all of the firm's short-run average total cost curves. O In the short run where capital is fixed, to minimize the cost, the necessary condition is the technical rate of substitution equals to input price ratio.
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