本文比较了凯恩斯主义、新古典主义和宏观行为经济学这三个学派对失业、货币政策、通货膨胀、储蓄等重要宏观经济问题的不同诠释 ,通过这种比较使我们看到 ,新崛起的宏观行为经济学为经济学界注入了一股新鲜的活力 ,它重新重视凯恩斯曾强调过的心理和社会因素的作用 ,从互惠、公平、身份、货币幻觉、损失厌恶、羊群行为角度出发 ,对许多宏观问题做了更符合实际也更令人信服的诠释 ,使我们对经济问题有了更深刻的认识和理解 This article compares the different interpretations of key macroeconomic issues such as unemployment, monetary policy, inflation and savings through Keynesian, neoclassical and macroeconomic behavioral economics. Through this comparison, we can see that the newly emerging macro Behavioral economics has injected a fresh vitality into economics. It re-emphasizes the role of psychological and social factors Keynes emphasized. From the perspective of reciprocity, fairness, identity, monetary illusion, loss aversion and herding behavior, The macroeconomic issue has made a more realistic and convincing interpretation, giving us a deeper understanding and understanding of economic issues