Marketing shapes consumer needs and wants in several ways. Marketers actively influence consumers' demands through advertising and promotion that plant ideas to make consumers feel they need certain products. For example, advertisements highlighting discounts can encourage people to buy products they didn't originally need. Marketers also shape needs through rewards programs, as seen in a supermarket chain that uses awards to incentivize bulk purchases and create perceived needs among customers. While basic human needs are influenced by geographic and cultural factors, marketers effectively stimulate wants and demand above true needs through persuasive marketing communication strategies.