Side Effects — Positive and Negative Externalities
Submitted By:Michael Ryan Moore, University of Pennsylvania, GSE
Date:November 6, 2011
Grade Level(s):9, 10, 11, 12
In this lesson, students are introduced to positive and negative externalities. Using the article, “Philanthro-teen Shannon McNamara: Educating Girls in Tanzania,” students will think about the unintended consequences of economic choices. In particular, students will work in groups to list the positive and negative externalities of living in different communities. Finally, students will think about how government intervention might alleviate negative externalities and promote positive externalities.