“…While we expect that Medicaid expansion increased medical liability costs because it caused an increase in Medicaid enrollment, tort reforms, in contrast, are designed to limit the liability or censor the right tail of the award distribution. Evidence exists that some reforms, such as caps on noneconomic damages, have reduced medical malpractice claim losses and pressures (e.g., Bertoli & Grembi, 2019;Born & Viscusi, 1994;Born et al, 2009Born et al, , 2018Grace & Leverty, 2013;Paik et al, 2012;Viscusi & Born, 1995, 2005. In this paper, we investigate whether insurers in expansion states with a specific tort reform experienced lower medical liability costs than their counterparties in states without reforms.…”