#readwise # Marginal Utility - Wikipedia  ## Metadata - Full Title: Marginal Utility - Wikipedia - URL: https://en.wikipedia.org/wiki/Marginal_utility ## Highlights In economics, **utility is the satisfaction or benefit derived by consuming a product**; thus the **marginal utility** of a good or service **describes how much pleasure or satisfaction is gained from an increase in consumption**. It may be positive, negative, or zero. For example, purchasing more than one needs brings little satisfaction as the purchaser feels it is wasted money, hence zero marginal utility. If one is actually harmed by extra consumption then it is negative, and if some satisfaction is gained by extra consumption then it is positive. ^w440en ---