Video Office Hours: These videos feature Roger Arnold as he walks students through key concepts and graphs in each chapter. Using innovative video and whiteboard technology, the author provides both short concept pieces and longer lectures for each chapter, talking through the concepts just as he would in class and displaying on the whiteboard lecture points and demonstrating graphs. Students can play and replay the lectures as often as needed to review concepts. * Office Hours: This feature emulates the kinds of questions students bring to instructors after class. Office Hours explores key concepts such as how the money supply works; the purpose of the PPF; whether price ceilings are really good or bad for consumers; and the purpose of the AD/AS framework. * Economics 24/7: Illustrating the practical relevance of key concepts, this feature explores anything that can be explained through economic analysis. For example: Why do people specialize and trade? Will a tax on soda help reduce obesity? Why might states ban real estate commission rebates? Which is better, a tax rebate or a tax bonus? Economics 24/7 helps students learn to look for economic forces at work--and understand the principles behind them. * Chapter 18 on the financial crisis of 2007-2009: Arnold"s Macroeconomics, 11e, is the only principles of macroeconomics text currently on the market that focuses an entire chapter on the financial crisis. Covering all aspects of the crisis from its historical roots and various factors that contributed to the breakdown to policy responses from the government, this chapter brings together the context and direction that instructors and students are asking for in economic analysis of the recent crisis. * Aplia: Available bundled with the text or as a digital solution, Aplia is fully integrated with the eleventh edition. The comprehensive online, interactive problem sets, analyses, tutorials, experiments, and critical-thinking exercises give students hands-on application without adding to instructors" workload. Based on discovery learning, Aplia requires students to take an active role in the learning process--helping them improve their economic understanding and ability to relate to the economic concepts presented. Instructors can assign homework that is automatically graded and recorded.