Relier Pairs Demand and Factors Affecting DemandVersion en ligne Match the concept with its description. par sarah ayyad 1 . Substitution effect 2 Income 3 Consumer Preferences 4 Income effect 5 Demand 6 Population 7 law of diminishing marginal utility 8 Advertising 9 Price 10 Complementary Goods 11 Substitute Goods The total number of people living in a particular area. The individual tastes, likes, and dislikes that influence consumer behavior. The promotion of a product or service to increase consumer awareness and demand. states that the marginal benefit from using each additional unit of a good or service during a given time period tends to decline as each is used. Goods that are typically consumed together. The amount of money that must be paid to acquire a good or service. Goods that can be used in place of one another. amount people buy changes as they buy substitute products one whose price has not changed and that offers a better relative value. The amount of money or resources that an individual or household earns over a period of time. The quantity of a good or service that consumers are willing and able to buy at a given price. amount people buy changes as purchasing power of their income changes changes—even though the income itself does not change.