Marginal Revenue from Demand Curve Explained

Let's explore how demand curves relate to total revenue.A demand curve shows the relationship between price and quantity demanded of a product.As price decreases, quantity demanded increases, creating a downward-sloping curve.Let's look at some specific points on our demand curve.Total revenue is calculated by multiplying price times quantity at each point.When we plot total revenue against quantity, we get a parabolic shape.Let's see how the revenue points correspond to our demand curve points.The demand curve shows us that as price decreases, quantity demanded increases.Total revenue forms a parabola because of this inverse relationship between price and quantity.At low quantities, increasing quantity leads to higher revenue. But after a certain point, the price must be lowered so much that total revenue begins to fall.Marginal revenue represents the additional revenue gained from selling one more unit of a product.Starting with our demand curve, we can see how price changes as quantity increases.The marginal revenue curve starts at the same point as the demand curve, but falls twice as fast.We can calculate marginal revenue using this formula, which measures the change in total revenue divided by the change in quantity.Alternatively, we can express marginal revenue in terms of price and the price change with respect to quantity.Let's calculate marginal revenue at a specific point. When quantity equals 4, the price is 6 dollars.If we increase quantity by one unit to 5, we need to lower the price on all units, causing price to fall to 5 dollars.Let's calculate the marginal revenue at this point. The price is 6 dollars, and the price change is negative one, multiplied by quantity of 4.This gives us a marginal revenue of 2 dollars, which is less than the price due to the need to lower prices on all units.To maximize profits, firms need to find where marginal revenue equals marginal cost.The demand curve shows the price consumers are willing to pay at each quantity.The marginal revenue curve shows the additional revenue from selling one more unit.The marginal cost curve shows the cost of producing one additional unit.The profit-maximizing quantity occurs where marginal revenue equals marginal cost.At this quantity, the price is determined by the demand curve, which is higher than marginal revenue.In perfect competition, firms are price takers and marginal revenue equals price.But in imperfect competition, firms have market power and price exceeds marginal revenue.To calculate maximum profit, firms find where marginal revenue equals marginal cost, then multiply price times quantity minus total cost.Let's review the key points about profit maximization and market structures.Thanks for learning about profit maximization with Spark.E!