Managerial decision-making lies at the core of business success in an increasingly complex and competitive economic environment. Managers are required to allocate scarce resources, anticipate market changes, and balance short-term operational efficiency with long-term strategic objectives. Economic analysis provides a systematic framework that enhances managerial judgment by applying economic principles such as demand analysis, cost behavior, market structure, and risk assessment to real-world business decisions. This chapter explores the role of economic analysis in managerial decision-making, emphasizing its relevance for researchers and practicing professionals. It examines the theoretical foundations of managerial economics, key decision areas, analytical tools, and emerging challenges in a dynamic global economy. By integrating economic reasoning with managerial practice, the chapter highlights how informed decisions contribute to sustainable business performance and competitive advantage.