Additional Resources for further clarification
-Look at Game Theory, Game Theory II, Oligopoly, and Prisoner's Dilemma
2. Microeconomics Modules on Oligopoly by mjmfoodie on Youtube.com
3. Chapter 17 of your Textbook Principles of Economics 5th Edition by N. Gregory Mankiew
Mr. Clifford explains Oligopolies and Game Theory. Please review, making sure to pause the video when he asks.
Used with his permission.