The use of dummy variables in consumption models
对Winder和Palm（1989）的消费模型进行敏感性分析，发现对几个虚拟变量做微小合理改动后，原移动规划期模型与随机游走设定在观测上等价。
In this paper the consumption model in Winder and Palm [1989] is subjected to a sensitivity analysis. Small and reasonable change in several dummy variables provide that the original model with a moving planning horizon becomes observationally equivalent with a random walk specification.