The behavior of the robust version of the classical  instrumental variables, called instrumental weighted variables, and  their asymptotic representation is studied by means of the Monte Carlo experiments under various frameworks. The results are given both in the !compressed'' form of...

<p>The  robust version of the classical  instrumental variables, called Instrumental Weighted Variables (IWV) and the conditions for its consistency and $\sqrt{n}$-consistency  are recalled. The reasons  why the classical instrumental variables as well as  IWV were introduced and the idea of...</p>