The distribution of personal income: Revisited
指出Majumder和Chakravarty提出的四参数模型实际上是GB2分布的重新参数化，并解释了其与以往研究矛盾的实证结果。
Abstract In a recent paper, Majumder and Chakravarty (1990) propose a four‐parameter model which they find provides a better fit to some income data than the lognormal, gamma, Singh‐Maddala, Dagum, and generalized beta of the second kind (GB2) distributions. This note (1) demonstrates that the model proposed by Majumder and Chakravarty is a reparameterization of the GB2 and (2) reconciles the corresponding contradictory empirical findings reported by Majumder and Chakravarty.