When it comes to explaining fundamental economic principles by drawing on current economic issues and events, there is no one more effective than Nobel laureate and New York Times columnist Paul Krugman and co-author, Robin Wells. In this best-selling introductory textbook, Krugman and Wells' signature storytelling style and uncanny eye for revealing examples help readers understand how economic concepts play out in our world. This new edition is revised and enhanced throughout, including a much stronger array of superior online tools that are part of a complete, integrated online learning system.