Some studies indicate that consumer responses to traditional marketing approaches are becoming less predictable for businesses. According to a 2018 study, nearly 90% of online consumers in the United States researched products and brands online before visiting the store or making a purchase. The Global Web Index estimated that in 2018, a little more than 50% of consumers researched products on social media. Businesses often rely on individuals portraying their products in a positive light on social media, and may adapt their marketing strategy to target people with large social media followings in order to generate such comments. In this manner, businesses can use consumers to advertise their products or services, decreasing the cost for the company.