A Test of the Tobit Specification Against an Alternative Suggested by Cragg
提出一种针对Tobit模型的设定检验，将其与Cragg的两部分模型进行比较，检验仅需Tobit残差即可计算。
In this paper we present a specification test for the Tobit model. Specifically, we test the Tobit model against the alternative of a two-part model in which one set of parameters determines the probability of a limit observation while a second set of parameters determines the distribution of the non-limit observations. An advantage of our test is that it is easily calculated from the Tobit residuals.