analyst faces a sample selection bias problem. The aim of this paper is to provide further evidence using a simple sequential … with sample selection bias than the Heckman’s 2-step approach. …

We consider two semiparametric models for the weight function in a bias sample model. The object of our interest …

Many household panel surveys have experienced decreasing response rates and increasing risk of nonresponse bias in … recent decades, but trends in response rates and nonresponse bias in business or establishment panel surveys are largely … understudied. This article examines both panel response rates and nonresponse bias in one of the largest and longest …