I wonder if there is bias there in the moment in time chosen. Having been a genX young professional in 2000, my impression at the time was that the rocketing In

I wonder if there is bias there in the moment in time chosen. Having been a genX young professional in 2000, my impression at the time was that the rocketing Internet bubble caused a lot of people to switch jobs much faster than they had done even just five years earlier (lots of Internet companies were recruiting heavily and plucking people out of other jobs because the demand for new hires was so high. Lots of rapidly growing companies with stock options to offer made for an employees' market). After the bubble collapsed, jobs were much harder to come by, which in turn meant job tenures were longer. It would be interesting to compare today to 1997 or 2007, rather than 2000.