Over the past two decades, the United States has seen a dramatic increase in the number and magnitude of punitive damages verdicts rendered by juries in civil trials. Probably the most extraordinary example is the July 2000 award of $144.8 billion in the Florida class action lawsuit brought against cigarette manufacturers. Or consider two recent verdicts against the auto manufacturer BMW in Alabama. In identical cases, argued in the same court before the same judge, one jury awarded $4 million in punitive damages, while the other awarded no punitive damages at all. In cases involving...