英文文献：Stochastic Volatility and DSGE Models-随机波动率和DSGE模型
英文文献作者：Martin M. Andreasen
英文文献摘要：
This paper argues that a specification of stochastic volatility commonly used to analyze the Great Moderation in DSGE models may not be appropriate, because the level of a process with this specification does not have conditional or unconditional moments. This is unfortunate because agents may as a result expect productivity and hence consumption to be inifinite in all future periods. This observation is followed by three ways to overcome the problem.

摘要本文认为，在DSGE模型中，通常用于分析大缓和的随机波动率的一种规范可能是不合适的，因为具有该规范的过程水平不存在条件或无条件矩。这是不幸的，因为代理可能因此预期生产力，因此消费在所有未来时期都是无限的。根据这一观察结果，有三种方法可以克服这个问题。