I've always come to the same conclusion that "tit-for-tat" strategies are the simplest and most effective. You agree to cooperate at the start. Then you follow

I've always come to the same conclusion that "tit-for-tat" strategies are the simplest and most effective. You agree to cooperate at the start. Then you follow whatever choice your opposition made the previous move. The even better approach is to add in generosity randomly as a means to "forgive" misunderstandings. Maybe just me, but this article seems to add more complexity to the problem.