Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Learn how monopolies maximize profits by equating marginal cost and revenue. Discover the economic principles guiding price and output decisions in monopoly markets.

Marginal revenue measures extra income from producing one more unit. Compare marginal revenue and cost to decide on production adjustments. Track marginal revenue changes to set optimal production and ...