基于演化视角的“纳什均衡”观察与思考  

Viewing Nash Equilibrium from the Perspective of Evolution

作　　者：牟洪仲[1] 吕立艳 

机构地区：[1]贵州师范大学材料与建筑工程学院,贵阳550014 [2]贵州路桥集团有限公司,贵阳550001

出　　处：《学理论》2013年第9期127-129,共3页Theory Research

摘　　要：从演化的视角对纳什均衡所在的策略空间做了一个观察,认为纳什均衡所在的策略空间是不断变化的,这种变化源于策略空间本身的变化而不是决策,并以"生产力"与"生产关系"的类比对此给出了一种解释。通过"囚徒困境"中策略空间的演化进一步说明了演化的必然性,同时得到决策是基于所处的策略空间演化过程中的位置的结论,相应的策略空间中的某个纳什均衡并不能成为一种持续的决策所依赖的均衡。From the perspective of evolution, the strategy space including a certain Nash Equilibrium is changing constantly. And .the constant change is originated from nothing but itself, which has been explained by analogy with the relationship of productive forces and production relations in this paper. And then the paper further illustrates the inevitability of evolution by showing the dynamic change course of the strategy space concerning Prisoner＇s Dilemma. Conclusions gained are as follows： decision-making is based on some unique course which contains future uncertainty, so a certain Nash Equilibrium in the strategy space is not the sustained or crucial factor for decision-making.

关 键 词：演化 纳什均衡 囚徒困境 策略空间 决策 

分 类 号：F08[经济管理—政治经济学]