So perhaps there are good and bad ponzi schemes 所以说庞式计划可能也有好坏之分。
2.
And among the ponzi schemes , there are well run ones that last more than a few months 而且在这些骗子项目中，有一些能够很好的运行几个月。
3.
The difficulty is that most programs , despite whatever they claim to be , are ponzi schemes 困难的是不管它们怎样宣扬自己，它们都有可能是骗子。
4.
In the world of finance , describing something as a ponzi scheme is a standard form of abuse 在金融界，把事物描述成庞式计划，是不折不扣的辱骂。
5.
Above all , the main reasons of bubbles creating are : the bounded rationality of investors and related noise trading and positive feedback trading , the rent - seeking behavior , the information asymmetry and related herd behavior and ponzi scheme , the credit expanding including not appropriate monetary policy , the risk - shifting and the moral hazard ) ~ tm _ t为泡沫解， m _ t为任意鞅，对应于不同的鞅(或相应的参数值)可以得到不同的泡沫过程。理性泡沫概念提出后，研究重点转向存在性分析，从定性分析和实证检验两个方向展开。
