Marketing positioning is the process by which marketers try to create an identity for a brand in the minds of customers. Repositioning involves changing this identity relative to competitors. Reasons for repositioning include responding to competition, increasing slow sales, clarifying the brand message, boosting company value, and attracting new customers. Repositioning can strengthen competitive position, improve sales, better target the market, align with customer needs, and generate media attention through various approaches like emphasizing celebrity endorsements, changing target segments, symbolism, moving up-market, expanding niches, or overhauling brand image.