Recent advances in survey sampling have underscored the value of auxiliary variables in estimating finite population means. By incorporating additional information from related variables, researchers ...

This is a preview. Log in through your library . Abstract In empirical marketing research that does not rely on fully randomized experiments, control variables are an important tool to rule out rival ...

This is a preview. Log in through your library . Abstract Objectives There is growing recognition that simultaneously assessing multiple exposures may reduce false positive discoveries and improve ...