Which one of the following conditions is incorrect?
(Where, SMC - Short term Marginal Cost, AVC - Average Variable cost, SAC - Short run average cost, LRMC - Long run marginal cost, LRAC - Long run average cost.)
Which one of the following conditions is incorrect?
(Where, SMC - Short term Marginal Cost, AVC - Average Variable cost, SAC - Short run average cost, LRMC - Long run marginal cost, LRAC - Long run average cost.)
Solution
✅ Correct Option: 3
A marginal cost curve always cuts the corresponding average cost curve from below at the latter's minimum point. So SMC cuts AVC and SAC from below at their minima, and LRMC cuts LRAC from below at its minimum. The statement that LRMC cuts LRAC from above is therefore incorrect, making option 3 the answer.
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