"When purchased from FlatWorld (the publisher), this Color Print Textbook includes Online Access, Quizzes, Flashcards and Homework (if professor uses Homework system). Online textbook is accessible. This new version of Principles of Macroeconomics welcomes a third co-author, Alan Grant, who brings fresh, classroom-based insights that enliven the text and bring it fully up to date. The two core premises of this book remain constant, 1. Economics is a unified discipline and not a bewildering array of seemingly unrelated topics. As a result, Version 4.0 of this volume remains structured around the model of aggregate demand and aggregate supply. 2. Basic macroeconomic principles are relevant to daily life and should be explained in everyday contexts. In this way, learners more readily perceive and understand the deeper meaning of core economic ideas. Engaging in-text applications and plentiful embedded video links are drawn from sports, politics, campus life, popular culture, and other familiar settings to illustrate the connections between theoretical principles and common experiences. "