Memory Demand TermsVersión en línea Econ Ch4.1 por Kim Jacoway The willingness, ability and desire to buy a product Market Demand Curve the extra usefulness or satisfaction a person gets from acquiring or using one more unit of a product Graph that shows the amount an individual or a market will pay for a product at multiple price points The quantity of a good or service demanded varies inversely with the price. the principle which states that the extra satisfaction we get from using additional quantities of the product begins to diminish. Individual Demand Schedule Demand Utility Diminishing Marginal Utility Marginal Utility Chart that shows the amount an individual is willing to pay for an item at multiple price points. the amount of usefulness or satisfaction that someone gets from the use of a product or service. Law of Demand