While the subject of much research, mass shooting research seldom focuses on the market reaction to firearm manufacturers and related companies. This study explores potential effects on the market returns of four publicly traded firearm manufacturing and related companies following mass shootings from 2014 through September of 2018. Results show that some mass shootings negatively correlated with market returns of such companies, especially over the latter two years. However, given the many mass shootings which showed no significant correlation, future research should evaluate potential pairings with mass shootings that combine to drive such market effects.
LITERATURE REVIEW
Post-Event RegulationsWhile gun violence, in general, represents a significant issue, mass shootings play an outsized role in potential firearm-related legislation. Despite accounting for about 0.13% of all gun deaths (Luca, Poliquin, & Malhotra, 2016), one study found mass shootings result in around 80 times greater per-death impact than other homicides (Luca, et al., 2016), while another determined mass shootings create 66 times more state-level gun-related legislation than other gun deaths (Irwin, 2016). Both Irwin and the team of Luca, Malhotra, and Poliquin found a 15% increase in the number of firearm bills introduced within a state the year after a mass shooting, with Luca et al. finding the effect positively scales with the number of fatalities.