Over these twenty years , financial system reform in china has achieved a great success , for instance we have established all kinds of financial organization institutions and multi - financial markets and so on . at the same time , it also appears many puzzled monetary phenomenon such as “ missing money ” and the drop of the money circulation velocity , etc . the phenomenon leads to that the classic theory of demand for money cannot explain the current money demand 在这20多年里,我国金融体制改革取得了丰硕的成果,比如逐步建立了各种金融组织体系和多元化的金融市场等等,同时也出现了“失踪货币”以及货币流通速度下降等许多令人费解的货币现象,使得传统的货币需求理论不能很好地解释当前我国的货币需求现象。