When it comes drawing on enduring economic principles to explain current economic realities, there is no one readers trust more than Paul Krugman. With his bestselling introductory textbook (now in a new edition) the Nobel laureate and New York Times columnist is proving to be equally effective in the classroom, with more and more instructors in all types of schools using Krugman’s signature storytelling style to help them introduce the fundamental principles of economics to all kinds of students.

Highlighting the importance to ecological studies of incorporating humans and their effects on ecosystems, leading experts from a variety of disciplines address a number of important issues, including: * the prominent role of humans in the function of ecosystems on Earth * why humans have been ignored in ecological studies * approaches taken by social scientists, historians, geographers, economists, and anthropologists in the study of human activities * the emergence of a new ecological paradigm accommodating human activities * methods for studying subtle human effects, and human- populated ecosystems * future research and training required to include humans effectively as components of ecological systems. Of interest to students and researchers in ecology, and to policy-makers and environmental managers. In addition, it makes social scientists aware of new opportunties for integrating their ideas with those of ecologists.

AP® Economics courses are hard. Krugman’s Economics for the AP® Course, third edition was created to help you solve the economics puzzle. Assembled by AP® experts and divided into short modules, the organization, language, and emphasis perfectly mirrors College Board’s curriculum framework. This dedication to the AP® courses keeps teachers and students on track to realize success on the AP® exams.