Basic purpose of this lecture is to present on Strategy and Competitive Advantage in Diversified Companies. The competitive benefits of its diversification strategy, it must thoroughly understand its present corporate strategy by examining all aspects of the business as they relate to building a sustainable competitive advantage.The firm has ranked its business units on the basis of resource allocation priority, it can then maximize its strategic position by investing in the strengthening or expansion of current businesses, engaging in mergers or acquisitions to position itself in new industries, or funding long-term research and development initiatives.