The document discusses various competitive advantages and strategies used by companies. It defines four types of competitive advantages based on costs and differentiation: costs leadership, differentiation advantage, focus advantage, and combination advantage. It also describes strategies used by different types of market players: market leaders look to constantly advance and defend their position; market challengers may use frontal attacks, flank attacks, or surrounding tactics; market followers look to imitate or adapt leaders' offerings; market nichers focus on defending a small market segment; and outsiders try strategies like harvesting, reorganizing, or integrating to improve their weak position. Specific examples are given of strategies used by companies like Nescafe, Odnoklassniki, and Bionor