American Government is designed to meet the scope and sequence requirements of the single-semester American government course. This title includes innovative features designed to enhance student learning, including Insider Perspective features and a Get Connected Module that shows students how they can get engaged in the political process. The book provides an important opportunity for students to learn the core concepts of American government and understand how those concepts apply to their lives and the world around them. American Government includes updated information on the 2016 presidential election.Senior Contributing AuthorsGlen Krutz (Content Lead), University of OklahomaSylvie Waskiewicz, PhD (Lead Editor)

Learn the difference between rivalry and excludability, and how these characteristics determine whether a good is a private good, public good, artificially scarce good, or common resource.

The tragedy of the commons occurs when goods are rival but not excludable. In this video, we explore the intuition, and consequences, behind such goods. Created by Sal Khan.