Modern companies must appeal to their target audiences by understanding customer needs and advertising how they meet those needs. Supermarkets like Tesco, Sainsbury's, Asda, and Morrisons frequently compare their products and offers in advertisements to attract customers and discourage shopping at competitors. These ads use subtle messages and in-store deals like Sainsbury's price matching to persuade audiences. Asda recently used snowmen representing the supermarkets in a clever ad that portrayed the others' snowmen as unhappy to promote their brand. Sainsbury's split-screen ad similarly portrayed shoppers as happier in their section to position themselves positively against Tesco and Asda. Product comparison ads demonstrate quality and value by showing results of brands like Ariel