8.4.3 Explaining How to Internalize External Benefits (Positive Externalities (5:34) [MyNotes] Market Failure - Positive Externalities of Consumption (econclassroom.com 10:51)
8.2.1 Defining Public Goods 13:32 [MyNotes]
The Tragedy of the Commons as a Market Failure (econclassroom.com 14:29) [MyNotes] Tragedy of the Commons (YouTube - LearnLiberty - 3:19)