In Problem 7, as more and more computer users read documents online rather than print them, the market demand for paper decreases and in the short run the demand schedule becomes the schedule shown in the table. If each firm producing paper has the costs set out in Problem 7, what is the market price and the economic profit or loss of each firm in the short run?
In problem 7

Quantity demanded (dollars per box) 3.65 5.20 6.80 8.40 10.00 11.60 13.20 (thousands of boxes per week) 500 450 400 350 300 250 200 Each producer of paper has the following costs when it uses its least-cost plant: Average ariable cos total cost Average Outut Marginal cost boxes (dollars per per week additional box) (dollars per box 200 250 300 350 400 450 500 6.40 7.00 7.65 8.40 10.00 12.40 20.70 7.80 7.00 7.10 7.20 7.50 8.00 9.00 12.80 11.00 10.43 10.06 10.00 10.22 11.00