Competitive Market Worksheet: A single firm in a competitive market. ( Price or Cost 90 80 70 60 50 40 30 20 10 ) ( Price or Cost $ 90 80 70 60 50 40 30 20 10 ) Count’s costs Market Supply and Demand ( MC ) ( ATC ) ( ( m arket ) supply ) ( Demand ) ( 1 2 3 4 5 20 40 60 80 100 120 140 160 quantity ( 1,000 calculators/wk) QUANTITY (1,000 calculators /week) ) The graph on the left shows the cost curves for Count, a company that produces calculators. The graph on the right shows Supply and Demand for the calculator market, which we will assume is competitive. Part A: Short Run Assume that the market is competitive and in short run equilibrium and that Count is making profit-maximizing short run decisions. 1. What is the current market price? $ __35____ How many calculators are being produced per week in this market? ____130_____ 2. What price will Count charge? _______ Why will Count charge this price? ___________________________________ 3. What is Count’s: Output (q): ________ At that output, what is MC ________ and ATC _________? Average profit per unit: $ ___________. (Note: If it is a loss, state it as a negative profit) Part B Long Run 1. If other producers have the same costs as Count, and are making the same profits/losses as count is in question #4, what will happen to each of the following in the market in the long run: Will firms enter or exit ______________________ Shift(s) in supply or demand ________________________________ Change in the price________________________. Change in the profits (losses) of firms. _______________________ 2. Once the market has reached long-run equilibrium, what is the expected market price? $_____________ Explain why:______________________________________________________________________________ 3. In long run equilibrium, all firms’ Marginal Cost will be = $ _____, since MC =_price_MR______ ; all firms’ ATC will be $______ , sinc.