Abstract
A general discussion is presented of the properties of the OLS estimator in regression models where the disturbances do not have a scalar identity covariance matrix. Several new and interesting characterizations are provided together with a synthesis of existing results. A distinguishing feature of the paper is the unified treatment of the issues of efficiency and inference. The theoretical material is illustrated by examples covering a wide range of models of interest to applied econometricians.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
