Show a monopolistic firm earning an econ. profit > 0.
*Draw the MC curve (MC).
*Indicate the profit-max. price (P) and quantity (Q).
*Draw the ATC curve (ATC).
*Shade the economic profit > 0.
ERASE
Show a monopolistic firm earning an econ. profit = 0.
*Draw the MC curve (MC).
*Indicate the profit-max. price (P) and quantity (Q).
*Draw the ATC curve (ATC).
(NOTE:  This is a monopolistic competitive firm either in the SR or the LR)
ERASE
Show a monopolistic firm earning an econ. profit < 0.
*Draw the MC curve (MC).
*Indicate the profit-max. price (P) and quantity (Q).
*Draw the ATC curve (ATC).
*Shade the economic profit < 0 (economic loss).