Quote Originally Posted by Deliverance View Post
See e.g. this one on the credit-promising professor.

His version isn't a prisoner's dilemma. The students can find out it's coming, and communicate. And there's a Nash Equilibrium with maximum credits awarded; once almost 10% of the class has publicly declared their intent to take 6 points, every remaining student has a choice between 2 points and 0 and takes the 2.