Table 2 Estimated MSE for different estimators at p = 3 and \(\phi =2\).
\(\rho ^2\) | n | PIGMLE | PIGRRE | PIGGRE | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MLE | \(\hat{k}_1\) | \(\hat{k}_2\) | \(\hat{k}_3\) | \(\hat{k}_4\) | \(\hat{k}_5\) | \(\hat{K}_1\) | \(\hat{K}_2\) | \(\hat{K}_3\) | \(\hat{K}_4\) | \(\hat{K}_5\) | ||
0.80 | 30 | 1.50903 | 1.24908 | 1.05844 | 1.19373 | 0.93372 | 0.78300 | 0.64993 | 0.51268 | 0.38956 | 0.80052 | 0.59035 |
75 | 0.43763 | 0.35645 | 0.30387 | 0.33531 | 0.24895 | 0.20746 | 0.16700 | 0.12728 | 0.10926 | 0.16970 | 0.14486 | |
150 | 0.17445 | 0.16225 | 0.15243 | 0.15606 | 0.12085 | 0.10453 | 0.08896 | 0.07361 | 0.06486 | 0.08581 | 0.08132 | |
200 | 0.13210 | 0.12172 | 0.11362 | 0.11633 | 0.08769 | 0.07615 | 0.06554 | 0.05902 | 0.05903 | 0.06267 | 0.06149 | |
300 | 0.09989 | 0.09490 | 0.09065 | 0.09181 | 0.07149 | 0.06248 | 0.05440 | 0.04846 | 0.04628 | 0.05124 | 0.05142 | |
400 | 0.06679 | 0.06459 | 0.06261 | 0.06302 | 0.05011 | 0.04448 | 0.03945 | 0.03627 | 0.03584 | 0.03737 | 0.03779 | |
0.85 | 30 | 1.33903 | 1.03215 | 0.81491 | 0.93519 | 0.67985 | 0.54769 | 0.43190 | 0.31404 | 0.23184 | 0.52534 | 0.37503 |
75 | 0.65692 | 0.57372 | 0.51132 | 0.55719 | 0.43693 | 0.36691 | 0.30437 | 0.23738 | 0.17464 | 0.34472 | 0.27680 | |
150 | 0.22981 | 0.20421 | 0.18578 | 0.19403 | 0.14468 | 0.12191 | 0.10076 | 0.08150 | 0.07053 | 0.09801 | 0.09105 | |
200 | 0.19751 | 0.18076 | 0.16739 | 0.17354 | 0.13115 | 0.11071 | 0.09180 | 0.07249 | 0.05783 | 0.08903 | 0.08302 | |
300 | 0.10427 | 0.09946 | 0.09528 | 0.09643 | 0.07626 | 0.06648 | 0.05727 | 0.04806 | 0.04097 | 0.05369 | 0.05319 | |
400 | 0.09503 | 0.09069 | 0.08688 | 0.08787 | 0.06831 | 0.05898 | 0.05041 | 0.04229 | 0.03676 | 0.04573 | 0.04674 | |
0.90 | 30 | 3.58361 | 2.85458 | 2.30876 | 2.54826 | 1.56711 | 1.20000 | 0.95493 | 0.74698 | 0.54494 | 1.36040 | 0.87907 |
75 | 0.88513 | 0.74347 | 0.64152 | 0.72270 | 0.53783 | 0.43328 | 0.34501 | 0.25344 | 0.17309 | 0.41951 | 0.30692 | |
150 | 0.35437 | 0.29885 | 0.26082 | 0.28156 | 0.19809 | 0.15990 | 0.12506 | 0.08985 | 0.06812 | 0.12571 | 0.10756 | |
200 | 0.22758 | 0.20208 | 0.18371 | 0.19342 | 0.14633 | 0.12096 | 0.09833 | 0.07481 | 0.05595 | 0.09713 | 0.08806 | |
300 | 0.14540 | 0.13580 | 0.12779 | 0.13047 | 0.09861 | 0.08297 | 0.06836 | 0.05235 | 0.03993 | 0.06313 | 0.06118 | |
400 | 0.14155 | 0.13121 | 0.12290 | 0.12548 | 0.09150 | 0.07649 | 0.06253 | 0.04802 | 0.03815 | 0.05602 | 0.05570 | |
0.95 | 30 | 3.97676 | 3.08556 | 2.44899 | 2.73670 | 1.69227 | 1.27262 | 0.96068 | 0.68571 | 0.46335 | 1.43603 | 0.84215 |
75 | 1.20052 | 0.87025 | 0.65469 | 0.80304 | 0.53416 | 0.40297 | 0.29942 | 0.20375 | 0.13700 | 0.38052 | 0.25500 | |
150 | 0.70068 | 0.56333 | 0.46752 | 0.53661 | 0.36893 | 0.28392 | 0.21534 | 0.14823 | 0.09576 | 0.24890 | 0.18634 | |
200 | 0.45861 | 0.38447 | 0.33131 | 0.36771 | 0.25950 | 0.20289 | 0.15709 | 0.11229 | 0.07600 | 0.17257 | 0.13814 | |
300 | 0.30176 | 0.26922 | 0.24446 | 0.25939 | 0.19246 | 0.15486 | 0.12314 | 0.09034 | 0.05957 | 0.12884 | 0.11027 | |
400 | 0.21079 | 0.18927 | 0.17206 | 0.18030 | 0.12914 | 0.10319 | 0.08094 | 0.05781 | 0.03919 | 0.07693 | 0.07099 | |
0.99 | 30 | 31.38604 | 22.74318 | 16.44907 | 17.68168 | 4.77521 | 2.92910 | 1.88350 | 1.14688 | 0.61308 | 5.07014 | 1.57104 |
75 | 6.78964 | 4.53029 | 2.91014 | 3.48779 | 1.20196 | 0.74147 | 0.45384 | 0.23894 | 0.13677 | 0.88678 | 0.34049 | |
150 | 3.38447 | 2.79009 | 2.31554 | 2.60513 | 1.43551 | 0.98270 | 0.68667 | 0.44689 | 0.23208 | 1.15075 | 0.60028 | |
200 | 2.08629 | 1.47794 | 1.05982 | 1.31217 | 0.73104 | 0.49374 | 0.33699 | 0.20953 | 0.11263 | 0.50359 | 0.28436 | |
300 | 1.58204 | 1.05168 | 0.70881 | 0.90450 | 0.41763 | 0.26520 | 0.16730 | 0.09091 | 0.05055 | 0.21931 | 0.12933 | |
400 | 1.01811 | 0.70303 | 0.50180 | 0.63887 | 0.35199 | 0.23691 | 0.15914 | 0.09560 | 0.05173 | 0.19491 | 0.13119 |