功利主义的引入和边际革命使得经济学完成了向新古典范式的转变,但作为核心的效用理论常常被后人理解为是一种心理学的分析。通过对19世纪经济学和心理学的关系进行深入剖析,发现没有明显的证据表明效用理论的建立与发展和心理学有关。新古典经济学虽然以主观价值论为核心,但并没有一个确定的心理学基础,这恰恰是新古典经济学致命的缺陷。 The introduction of utilitarianism and the marginal revolution have led economics to complete the transition to the neoclassical paradigm, but the utility theory as its core is often understood by future generations as a psychoanalytic analysis. Through an in-depth analysis of the relationship between economics and psychology in the 19th century, we found that there is no obvious evidence that the establishment of utility theory is related to the development and psychology. Although neoclassical economics regards subjective value theory as its core, it does not have a definite basis of psychology. This is precisely the deadly defect of neoclassical economics.