The law of demand applies to millions of products sold in grocery stores, department stores, clothing stores, shoe stores, drugstores, music stores, bookstores, hardware stores, other retailers, travel agencies, and restaurants, as well as mail- order catalogs, ________, classified ads, online sites, stock markets, real estate markets, job markets, flea markets, and all other m Even decisions that appear to be more personal than economic, such as whether or not to keep a pet, are subject to the law of demand.