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Economics

Marginal Revenue

Quick fact

Under perfect competition, marginal revenue equals the market price. But for a monopoly, marginal revenue is always less than the price—a key reason why monopolies produce less than competitive firms.

Why this is interesting

Imagine you run a lemonade stand. When you sell one more cup, does that cup always add the same amount to your total revenue? Often it doesn't—and that's where marginal revenue comes in.