More than eight-in-ten people worldwide now have a smartphone – and, boy, do we love using them, even when we probably shouldn’t.

According to some data, the most addictive smartphone users can spend up to two-and-a-half hours a day browsing, scrolling, posting, liking, and gaming instead of working. That’s a lot of lost productivity. So should employers seek to manage, limit, or even outright prevent personal phone use at work?