OverviewPrinciples of Macroeconomics provides a rigorous and theoretical treatment of concepts in an easy-to-follow and logical format. This fourth edition is fully up-to-date with all the latest relevant theories, figures and, data including a brand new chapter on macroeconomic policy (Chapter 10). The authors introduce a coherent short list of core principles and reinforce them by illustrating and applying each in numerous contexts. With engaging questions, explanations and exercises, the authors help students relate economic principles to a host of everyday experiences such as going to the ATM or purchasing airline tickets. Throughout this process, the authors encourage students to think like an economist and to and employ basic economic principles to understand and explain what they observe in the world around them. This approach engages student interest while teaching them to see each feature of their economic landscape as the reflection of an implicit or explicit cost-benefit calculation.