"Pretend that you're driving on the highway and you see a chair in the middle of the road. You had to turn out of the way to avoid hitting the chair with your car. You consider stopping your car, getting out, and moving the chair out of the way. On the other hand, you're late to work, and it's not your fault that the chair is in the road. You have to figure whether to move the chair or not." (A question from the course Model Thinking.) This is an example of a prisoner's dilemma game, a collective action problem, a common pool resource problem, or none of these