It's also possible it's because the number of movies Steven Seagal starred in for the past 30 years has also declined [1]. Car alarms can deter joyriders but d

It's also possible it's because the number of movies Steven Seagal starred in for the past 30 years has also declined [1]. Car alarms can deter joyriders but don't do much for the professional car thief [2] ([3] has more references). Also, as an anecdote, there's been a bunch of car prowls in my apartment building parking lot for the past year or so. The victims were high-end vehicles with valuables in-sight (briefcases, dashcams, etc..) and they all had car alarms. [1] http://www.tylervigen.com/spurious-correlations http://www.tylervigen.com/spurious-correlations [2] https://www.ncjrs.gov/App/publications/abstract.aspx?ID=165687 https://www.ncjrs.gov/App/publications/abstract.aspx?ID=1656... [3] https://priceonomics.com/are-car-alarms-completely-fucking-useless/ https://priceonomics.com/are-car-alarms-completely-fucking-u...