Revenue and Market Structure Introduction to Economics ECO-101
Contents Concept of revenue Total revenue Average Revenue Average revenue and price Marginal revenue Relationship between AR and MR
Revenue Total revenue : The total amount of sale proceeds or the total receipts of the firm. We can calculate the Total Revenue of the firm by multiplying the quantity of goods with its price. TR= P×Q For Example: If a firm sells 100 meters of cloth at a price of 4 Rs. per meter. Then TR will be: TR= 100 x 4= 400
Average Revenue Average Revenue (AR) is revenue earned per unit of output. Average Revenue is obtained by dividing the total revenue by the number of units sold in the market. Average Revenue represents the average sale price per unit of the commodity. Average revenue can also be called demand curve. AR = AR=
Marginal revenue Marginal revenue is the addition made to the total revenue by a one-unit increase in the volume of the sales by the firm in the market. MR = Under Perfect Competition : Price remains constant Under Imperfect Competition: Price decreases with increase in output
Relationship between AR and MR Under Perfect Competition (when price remains constant) when price remains constant, firms can sell any quantity of output at the price fixed by the market. No firm is in a position to influence the market price of the product. A firm can sell more quantity of output at the same price. It means, the revenue of every additional unit (MR) is equal to AR.
Table and graph
Explanation As a result, MR curve and AR is a horizontal straight line parallel the x-axis. Since MR remains constant, TR increases at a constant rate. Due to this reason, the TR curve is positively sloped straight line. As TR zero at zero level of output, TR curve starts from the origin.
TR MR and AR
Relationship between AR and MR Under Imperfect Competition (when price falls with increase in output) It can be in the form of Monopoly, duopoly or oligopoly. Demand curve facing the firm is negatively sloped. Under imperfect competition, the behavior of MR is that it lies below the AR Curve.
When firms can increase their volume of sales only by decreasing the price, AR falls with increase in sale. It means, revenue from every additional unit (i.e. MR) will be less than AR. As a result, both AR and MR curve slope downwards from left to right. Both MR and AR fall with increase in output. However, fall in MR is double than that in AR.i.e ., MR falls at a rate which is twice the rate of fall in AR. MR curve is steeper than AR curve because MR is limited to one unit, whereas, AR is derived by all units.