SECOND-DEGREE PRICE DISCRIMINATION: A form of price discrimination in which a seller charges the different prices for different quantities of a good. This also goes by the name block pricing. This is possible because the different quantities are purchased by different types of buyers with different demand elasticities. This is one of three price discrimination degrees. The others are first-degree price discrimination and third-degree price discrimination. See also | price discrimination | market control | first-degree price discrimination | third-degree price discrimination | demand price | monopoly | price elasticity of demand |