For those people who aren't familiar with this and are worried about the economics of it in particular, it's gone over in considerable detail in chapter 6 of the textbook.

那些没有涉足过这些知识的同学,或者经济学学得不太好的同学,回去看看教材第六章,有详细解释的

耶鲁公开课 - 博弈论课程节选