Table 3:
Linear Extrapolation | Quadratic Extrapolation | Local Linear Extrapolation | |
---|---|---|---|
|
|||
Panel A: Mean Risk by Race | (1) | (2) | (3) |
|
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White Defendants | 0.338 (0.007) | 0.319 (0.021) | 0.346 (0.014) |
Black Defendants | 0.400 (0.006) | 0.394 (0.021) | 0.436 (0.016) |
Panel B: System-Wide Disparate Impact | |||
Mean Across Cases | 0.054 (0.002) | 0.054 (0.007) | 0.042 (0.006) |
Panel C: Judge-Level Disparate Impact | |||
Mean Across Judges | 0.054 (0.003) | 0.054 (0.007) | 0.042 (0.006) |
Std. Dev. Across Judges | 0.038 (0.003) | 0.037 (0.003) | 0.037 (0.003) |
Fraction Positive | 0.929 (0.016) | 0.931 (0.036) | 0.873 (0.036) |
| |||
Judges | 268 | 268 | 268 |
Notes. This table summarizes estimates of mean risk and disparate impact from different extrapolations of the variation in Figure 2. Panel A reports estimates of race-specific average misconduct risk, Panel B reports estimates of system-wide (case-weighted) disparate impact, and Panel C reports empirical Bayes estimates of summary statistics for the judge-level disparate impact prior distribution. To estimate mean risk, column 1 uses a linear extrapolation of the variation in Figure 2, while column 2 uses a quadratic extrapolation and column 3 uses a local linear extrapolation with a Gaussian kernel and a rule-of-thumb bandwidth. Robust standard errors, two-way clustered at the individual and judge level, are obtained by a bootstrapping procedure and appear in parentheses.