This is the international edition of anagerial Economics in a Global Economy. This text uses the theory of the firm as the unifying theme to examine how a firm can make optimal managerial decisions in the face of the constraints. The text introduces a global view and many new exciting topics into managerial economics (such as firm architecture, the evolution of the creative firm, Porter's strategic framework, business ethics, electronic cmmerce, and risk management) and shows how managerial decisions are actually made with more than 140 real-world cases.