Concentration strategy involves focusing a business's efforts on a specific target such as a customer group, product, or geographic market. There are three main types of concentration strategies: market penetration, market development, and product development. Market penetration aims to gain market share in an existing market. Market development expands an existing product to new markets. Product development introduces new products for the existing market. Companies that employ concentration strategies specialize in their area of focus to develop expertise and efficiencies. Examples include McDonald's focusing on the Latin American market through advertising and Starbucks selling coffee beans through other retailers.