Monopolistic Competitors in the short run (a Firm Makes a Profit Price MC ATC Price laaaasasaaa Average… total cost Profit Demand MR 0 Profit maximizing quantity Quantity H arc Inc items and derived items copyright o 2001 by Harcourt, IncHarcourt, Inc. items and derived items copyright © 2001 by Harcourt, Inc. Monopolistic Competitors in the Short Run... (a) Firm Makes a Profit Quantity 0 Price Demand MR ATC Profit MC Profit- maximizing quantity Price Average total cost