A 2017 qualitative study published in "Justice Quarterly" examined auto theft and carjacking in the context of "sanction threats" that promoted fear and influenced "crime preferences" among criminals, thereby redirecting ("channeling") criminal activity. The study showed that "auto thieves are reluctant to embrace the violence of carjacking due to concerns over sanction threat severity they attributed to carjacking—both formal (higher sentences) and informal (victim resistance and retaliation). Meanwhile, the carjackers are reticent to enact auto theft because of the more uncertain and putatively greater risk of being surprised by victims, a fear that appears to overcome the enhanced long-term formal penalty of taking a vehicle by force."