TOTAL REVENUE CURVE, MONOPOLY: A curve that graphically represents the relation between total revenue received by a monopoly for selling its output and the quantity of output sold. It is used with the monopoly firm's total cost curve to determine economic profit. The marginal revenue curve, a key factor for determining the profit-maximizing level of a firm's output, is derived directly from the total revenue curve. See also | total revenue | curve | monopoly | total revenue curve | short-run production | quantity | price | average revenue | marginal revenue | total revenue and total cost | total revenue curve, monopolistic competition |