Brief video [0:21] and quiz on world economic development.

Economics website with video [1:35] and interactive quiz teaches about costs, benefits, and incentives.

We tend to see the United States as a country with free trade. Although we do have a great deal of freedom to enter new markets, there are barriers to trade that limit consumer choice. This lesson explores these barriers and how they work.

Find out how you compare with students nationally and from around the world by taking the interactive online quiz.

Economics learning website with video on the concept of risks and return on investments.

Video [4:11] teaching the concept of Financial Markets and the buying and selling of financial assets, such as bonds, stocks and mutual funds.

This study guide distinguishes between positive and negative externalities and how to correct negative externalities. Some learning exercises and an online quiz are also provided.