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In Figure 1, which corresponds to q = 2 and x$_{0}$ = 1, we observe that the MM- and τ -estimates behave similarly, both having a smaller MSE than the S-estimate except when m is (approximately) between 2 . 8 and 4. In this case, the S-estimate has the largest maximum MSE among the robust estimates. As expected, the MSE of the MLE increases without bound for large m . Figure 2 shows the results for q = 2 and x$_{0}$ = 10. S-, τ - and MM-estimates behave similarly. In Figure 3, which corresponds to q = 5 and x$_{0}$ = 1, the three robust estimates are seen to 

