We study the factors that predict medical malpractice ("med mal") insurance premia, using national data from Medical Liability Monitor over 1990 to 2017. A number of core findings are not easily explained by standard economic theory. First, we estimate long run elasticities of premia to...

Many physicians and tort reform advocates believe that most medical malpractice (“med mal”) claims are “frivolous”; they often rely on reports that only about 20% of claims result in a payout. Many physicians and reform advocates also believe that plaintiffs lawyers often sue every...