Alphabet’s Waymo is taking a bite out of ride-hailing in its most mature markets, third-party data showed.

And that share is large enough that its effects on human drivers could be detectable, Gad Allon, a Wharton professor who studies the gig economy, said.

Just don’t expect it to look like a visible wave of displaced drivers.

“My initial view is that the impact would not first appear as large numbers of drivers suddenly losing their jobs,” Allon told Business Insider. “Because driver supply is flexible, the earliest effects would likely show up in utilization, longer waits between rides, fewer trips per hour, and possibly more unpaid…