Research Article
A New Ridge-Type Estimator for the Linear Regression Model: Simulations and Applications
Table 7
Estimated MSE when
n = 100,
, and
ρ = 0.70 and 0.80.
| n = 100 | 0.7 | 0.8 | Sigma | k = d | OLS | Ridge | Liu | New ridge | OLS | Ridge | Liu | New ridge |
| 1 | 0.1 | 0.174 | 0.173 | 0.163 | 0.171 | 0.263 | 0.259 | 0.235 | 0.255 | | 0.2 | | 0.171 | 0.164 | 0.169 | | 0.255 | 0.238 | 0.249 | | 0.3 | | 0.170 | 0.165 | 0.166 | | 0.252 | 0.241 | 0.243 | | 0.4 | | 0.169 | 0.166 | 0.164 | | 0.249 | 0.244 | 0.237 | | 0.5 | | 0.167 | 0.168 | 0.161 | | 0.246 | 0.247 | 0.232 | | 0.6 | | 0.166 | 0.169 | 0.159 | | 0.243 | 0.250 | 0.227 | | 0.7 | | 0.165 | 0.170 | 0.157 | | 0.240 | 0.253 | 0.222 | | 0.8 | | 0.164 | 0.171 | 0.155 | | 0.238 | 0.256 | 0.218 | | 0.9 | | 0.163 | 0.173 | 0.154 | | 0.235 | 0.259 | 0.214 | | 1 | | 0.162 | 0.174 | 0.152 | | 0.233 | 0.263 | 0.210 |
| 5 | 0.1 | 4.356 | 4.320 | 4.055 | 4.284 | 6.563 | 6.474 | 5.852 | 6.386 | | 0.2 | | 4.285 | 4.087 | 4.214 | | 6.388 | 5.928 | 6.216 | | 0.3 | | 4.250 | 4.120 | 4.146 | | 6.304 | 6.005 | 6.053 | | 0.4 | | 4.216 | 4.153 | 4.079 | | 6.222 | 6.082 | 5.895 | | 0.5 | | 4.182 | 4.187 | 4.013 | | 6.143 | 6.160 | 5.744 | | 0.6 | | 4.149 | 4.220 | 3.949 | | 6.066 | 6.239 | 5.598 | | 0.7 | | 4.116 | 4.254 | 3.887 | | 5.991 | 6.319 | 5.457 | | 0.8 | | 4.084 | 4.288 | 3.826 | | 5.917 | 6.399 | 5.322 | | 0.9 | | 4.053 | 4.322 | 3.767 | | 5.846 | 6.481 | 5.191 | | 1 | | 4.022 | 4.356 | 3.708 | | 5.777 | 6.563 | 5.066 |
| 10 | 0.1 | 17.425 | 17.281 | 16.219 | 17.138 | 26.250 | 25.896 | 23.408 | 25.545 | | 0.2 | | 17.140 | 16.350 | 16.858 | | 25.551 | 23.713 | 24.866 | | 0.3 | | 17.001 | 16.482 | 16.584 | | 25.216 | 24.020 | 24.212 | | 0.4 | | 16.864 | 16.614 | 16.316 | | 24.891 | 24.330 | 23.582 | | 0.5 | | 16.729 | 16.748 | 16.054 | | 24.573 | 24.643 | 22.975 | | 0.6 | | 16.597 | 16.882 | 15.797 | | 24.265 | 24.959 | 22.389 | | 0.7 | | 16.467 | 17.016 | 15.547 | | 23.964 | 25.277 | 21.825 | | 0.8 | | 16.339 | 17.152 | 15.301 | | 23.671 | 25.599 | 21.280 | | 0.9 | | 16.213 | 17.288 | 15.062 | | 23.385 | 25.923 | 20.755 | | 1 | | 16.089 | 17.425 | 14.827 | | 23.107 | 26.250 | 20.247 |
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