Book excerpt: Strategic Logic lays the foundations for a clear understanding of corporate profitability and provides the reader with innovative insights on how to develop original yet realistic strategies. Working with real-life examples and based on rigorous theory, the author analyses key managerial decisions and shows how to ensure these enhance the company's long-term profitability. Mergers and acquisitions are great opportunities for strategic development, but they can also destroyer value. The author indicates how to judge on what side a specific case will fall.