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A wholesaler (upstream firm) sells a product to a retailer (downstream firm). Both the wholesaler and the retailer are monopolists. The wholesaler faces a constant marginal cost of $2 and charges the retailer a wholesale price w. The retailer resells the product to final consumers at price P and the wholesale price w is its only cost. The demand for the good is P = 12 - Q. For your calculations below, assume that both the P and w are measured in dollars per unit. Hint. The retailer's profit function is = (P-w)Q. a (8). Find the profit-maximizing retail and wholesale prices and quantities b (2). Using your answers in (a), calculate the retailers and wholesaler's profits.