What if they gave an exam and nobody came?

A professor tells the class that he will use the highest grade to set the curve. The students all conspire to NOT take the exam, so the highest score is 0, so they should all get A's. If you were the prof what would you do?



This is NOT hypothetical. It happened- see here.



The prof gave all A's and didn't even mind it since the students learned to cooperate.

The prof then changed his grading scheme.

The article calls it a prisoners dilemma problem. I don't think thats right; however, it is the case that someone could have `defected'

Curving an exam based on the BEST student seems odd.