CAJ | 학술논문

行为经济学家通过经验观察发现了个体风险决策中的损失厌恶现象，从而对经济学理性假说的公理体系构成了挑战。我们运用神经经济学的研究方法，通过经颅直流电刺激（tDCS）技术，从因果关系角度进一步验证了损失厌恶的神经机制。我们的研究发现，大脑神经系统对收益和损失的信息处理是非对称性的，从而使风险决策者的偏好表现出明显的逆转；但在给定的情境（收益或损失）下，决策者的行为偏好仍然服从一致性公理的要求。这一研究结果既可以拓展经济学对人类行为偏好的传统认识，又可以容纳行为经济学家对人类行为偏好的经验观察，从而为经济学基础理论的发展提供了一种可行的范式。
행위경제학가통과경험관찰발현료개체풍험결책중적손실염악현상，종이대경제학이성가설적공리체계구성료도전。아문운용신경경제학적연구방법，통과경로직류전자격（tDCS）기술，종인과관계각도진일보험증료손실염악적신경궤제。아문적연구발현，대뇌신경계통대수익화손실적신식처리시비대칭성적，종이사풍험결책자적편호표현출명현적역전；단재급정적정경（수익혹손실）하，결책자적행위편호잉연복종일치성공리적요구。저일연구결과기가이탁전경제학대인류행위편호적전통인식，우가이용납행위경제학가대인류행위편호적경험관찰，종이위경제학기출이론적발전제공료일충가행적범식。
Behavioral economists empirically observed phenomenon of loss aversion when individuals made risk decisions. This is a challenge to economics axiom system based on the rational man hypothesis. We use neuroeconomics research methods to test the neural mechanisms of loss aversion from causal relationship perspective by transcranial direct current stimulation （tDCS） technology. Our study found that they are non - symmetry when brain nervous system process information about gains and losses, so that the risk preference of decision makers showed obvious reversals. However, the behavioral preference of decision makers is still subject to the requirements of consistency axiom in the given situation （gains or losses ）. The results of this study can not only expand the traditional understandings about human behavioral preferences in economics, but also accommodate empirical observations about human behavioral preferences from behavioral economists, and thus provides a feasible paradigm for development of the basic economics theory.