34. 0 43 70 1 5 b c a d marginal cost marginal revenue = price individual seller surplus Production rate (Thousand dozens a week) Cost/revenue (Cents per dozen)
24 Profit-maximizing rule: produce where price equals marginal cost same in the long run as for the short run -- but use long-run price and long-run marginal cost Same analysis for manufacturing and services manufacturing -- production rate, eg, for auto producer, no. of automobiles per year service -- operating rate, eg, for telecoms carriers, no. of minutes per month
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31 market supply begins with lowest-cost seller; each new seller comes into market supply according to for short run: its minimum average variable cost for long run: its minimum average cost