If a firm operating in a perfectly competitive industry maximizes short-run profits by producing some quantity of output q* > 0, which of the following must be true at that level of output?
A) p > MC
B) MR > MC
C) p ≥ AVC
D) All of the above
E) B and C only
Answer : The answer is option C.
For perfectly competitive firm the profit maximizing output level is that output level where P (Price) = MC (Marginal Cost). For perfectly competitive firm P = MR (Marginal Revenue). So, at profit maximizing output level P = MR = MC for perfectly competitive firm. Now if the perfectly competitive firm earn maximum short run economic profit then definitely at profit maximizing output level P AVC (Average Variable Cost). Therefore, option C is correct.
If a firm operating in a perfectly competitive industry maximizes short-run profits by producing some quantity...
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