Question 4 (20 points). A two-firm duopoly producing an identical product dominates the market, and that the firms face a linear market demand curve P=650-Q where Q is quantity of products, and P is the price per unit. Thus Q=QA+QB. Total revenues for Firm A and Firm B are: TRA=PQA=650QA-1Q3-QAQB TRB=PQB=650QB- Q3-QAQB Marginal revenues for Firm A and Firm B are: MRA= QA OTRA-650-2Q A QB MRB= OTRa=650-2Q B-QA QB Both firms have no fixed cost and have constant marginal cost: MCA=MCB=$50. (1). Calculate the Courtnot market equilibrium price output solutions. (5 points) (2). Assuming that Firm A is the leading firm, and Firm B is the following firm, calculate the Stackelberg market equilibrium price-output solutions. (10 points) (3). The two firms face the same market demand curve and have the same cost functions. Why there are differences in price output solutions in (1) and (2)? (5 points)