In a monopolistically competitive industry, firms’ demand curves also represent
a. marginal revenue.
b. marginal cost.
c. average revenue.
d. profit.
The correct answer and explanation is :
The correct answer is c. average revenue.
Explanation:
In a monopolistically competitive industry, firms produce differentiated products that are similar but not identical, which allows them to have some control over the price of their products. The demand curve faced by a firm in monopolistic competition represents the relationship between the price of its product and the quantity of that product it can sell at various price levels. This demand curve is important for understanding the firm’s pricing and revenue behavior.
- Average Revenue (AR): The average revenue of a firm is defined as the revenue per unit of output sold. It is calculated by dividing total revenue (TR) by the quantity (Q) of output produced. In this case, total revenue is equal to the price per unit (P) times the quantity sold (Q), so average revenue (AR) is simply the price at which the firm sells its product. Since the firm faces a downward-sloping demand curve in monopolistic competition, the price the firm can charge for each additional unit sold decreases as the quantity increases. The demand curve, therefore, shows the price at each level of output, which is the firm’s average revenue.
- Marginal Revenue (MR): Marginal revenue, on the other hand, is the additional revenue generated by selling one more unit of output. In monopolistic competition, marginal revenue is less than the price because the firm must lower its price on all previous units in order to sell one more unit, due to the downward-sloping demand curve. The marginal revenue curve is always below the average revenue curve.
- Marginal Cost (MC): Marginal cost is the additional cost incurred when producing one more unit of output. While it is an important factor for determining a firm’s optimal output level, it is not represented by the demand curve.
- Profit: Profit is the difference between total revenue and total cost, and while the demand curve impacts revenue, it does not directly represent profit.
In conclusion, in a monopolistically competitive market, a firm’s demand curve represents its average revenue because the price the firm can charge for each quantity of output is the revenue per unit of output.