‘Using event study analysis, we show that music streaming - an indicator for smartphone use, where streaming most often occurs - sharply increases, by nearly 40%, on dates of major music album releases, while U.S. traffic fatalities increase by nearly 15% on those same days.’
I suppose 40 years ago traffic accidents would increase when albums were released because we were all rushing to the mall to get to The Wherehouse to buy the new album and some blank TDK 90 minute cassettes for the primitive version of filesharing.