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Interesting analysis in Exxon v. Baker: Pt. II

I also would like to point out the Exxon opinion's effective reading of statistics regarding punitive damages:

The real problem, it seems, is the stark unpredictability of punitive awards. Courts of law are concerned with fairness as consistency, and evidence that the median ratio of punitive to compensatory awards falls within a reasonable zone, or that punitive awards are infrequent, fails to tell us whether the spread between high and low individual awards is acceptable. The available data suggest it is not. A recent comprehensive study of punitive damages awarded by juries in state civil trials found a median ratio of punitive to compensatory awards of just 0.62:1, but a mean ratio of 2.90:1 and a standard deviation of 13.81. Juries, Judges, and Punitive Damages 269.16 Even to those of us unsophisticated in statistics, the thrust of these figures is clear: the spread is great, and the outlier cases subject defendants to punitive damages that dwarf the corresponding compensatories. The distribution of awards is narrower, but still remarkable, among punitive damages assessed by judges: the median ratio is 0.66:1, the mean ratio is 1.60:1, and the standard deviation is 4.54. Ibid. Other studies of some of the same data show that fully 14% of punitive awards in 2001 were greater than four times the compensatory damages, see Cohen 5, with 18% of punitives in the 1990s more than trebling the compensatory damages, see Ostrom, Rottman, & Goerdt, A Step Above Anecdote: A Profile of the Civil Jury in the 1990s, 79 Judicature 233, 240 (1996). And a study of "financial injury" cases using a different data set found that 34% of the punitive awards were greater than three times the corresponding compensatory damages. Financial Injury Jury Verdicts 333.

We have long argued that mean, not median, verdict statistics are the relevant data points: the outliers on the tail of the distribution are the tails that wag the dogs. The Supreme Court decision gets that point -- ironically citing to the summary statistics in a Ted Eisenberg et al. study that all-too-typically hypes up median awards ("Perhaps the most remarkable finding . . . is the stability in the median punitive-compensatory damages ratios for judges and juries over time.") while obscuring verdict spreads by using logarithmic data in its empirical analysis.

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Rafael Mangual
Project Manager,
Legal Policy

Manhattan Institute


Published by the Manhattan Institute

The Manhattan Insitute's Center for Legal Policy.