从完全理性到有限理性的发展,是对西方传统经济学的一次挑战,同时也是对现实存在的一次回归。在本文中,笔者立足于有限理性的基本观点,在此基础上,提出序数研究有限理性,并对有限理性进行层级划分和等理性探讨。文中采用类比、归纳等方法来论证笔者的猜想,使观点有据可依,也为有限理性的研究寻找一个新的方向。 From perfect rationality to limited rational development, it is a challenge to western traditional economics and a return to reality. In this paper, based on the basic idea of ​​bounded rationality, the author puts forward the bounded rationality of ordinal research, as well as the division of bounded rationality and the equal-rationality discussion. The article uses analogy, induction and other methods to prove the author’s conjecture, so that there are grounds for evidence, but also for the study of bounded rationality to find a new direction.