PSM matching methods and their performance on given indicators
| Matching estimators | Matched sample size | Pseudo R2 | Mean bias | No. of Insignificant covariates |
|---|---|---|---|---|
| Nearest neighbor matching (NNM) | ||||
| NN(1) | 345 | 0.059 | 13.5 | 09 |
| NN(2) | 345 | 0.030 | 11.1 | 10 |
| NN(3) | 345 | 0.031 | 10.6 | 09 |
| Caliper matching | ||||
| Radius 0.01 | 325 | 0.045 | 10.7 | 08 |
| Radius 0.05,0.1 and 0.5 | 345 | 0.059 | 13.5 | 09 |
| Kernel matching | ||||
| Bandwidth (0.01) | 325 | 0.029 | 10.5 | 11 |
| Bandwidth (0.05) | 345 | 0.016 | 8.2 | 11 |
| Bandwidth (0.1) | 345 | 0.010 | 6.6 | 12 |
| Bandwidth (0.25) | 345 | 0.013 | 5.6 | 12 |
| Bandwidth (0.5) | 345 | 0.053 | 9.0 | 11 |
| Matching estimators | Matched sample size | Pseudo | Mean bias | No. of Insignificant covariates |
|---|---|---|---|---|
| NN(1) | 345 | 0.059 | 13.5 | 09 |
| NN(2) | 345 | 0.030 | 11.1 | 10 |
| NN(3) | 345 | 0.031 | 10.6 | 09 |
| Radius 0.01 | 325 | 0.045 | 10.7 | 08 |
| Radius 0.05,0.1 and 0.5 | 345 | 0.059 | 13.5 | 09 |
| Bandwidth (0.01) | 325 | 0.029 | 10.5 | 11 |
| Bandwidth (0.05) | 345 | 0.016 | 8.2 | 11 |
| Bandwidth (0.1) | 345 | 0.010 | 6.6 | 12 |
| Bandwidth (0.5) | 345 | 0.053 | 9.0 | 11 |
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