SIMULATION EVIDENCE
In this section, we perform two simulation studies to illustrate the performance of
robust regression estimators when the errors of the regression model are heteroskedastic
and/or skewed. The first set of experiments considers in detail the relative performance
of the OLS and the BWM-estimator. The second set of experiments illustrates
that the sensitivity of the BWM-estimator to skewness and heteroskedasticity extends
to other robust regression estimators.