Prisoners Dilemma Examples: Oligopoly, Carbon Emission & Dating

This video describes the two characteristics of a prisoner's dilemma and goes over three examples of Prisoner's dilemmas:
1) Oligopoly firms deciding whether to set the price high or low
2) Friends hanging out deciding whether to treat an excursion to the movies like a date or like it's just friends
3) Countries trying to decide whether to reduce carbon emissions or not
0:00 - Overview
1:05 - Traits of a Prisoner's Dilemma / Oligopoly Pricing
5:52 - Dating or Friends?
7:54 - Reduce Carbon Emissions?