It seems like many more of us have been working from home for at least part of the week. But bosses fret about the effect on productivity when their employees are out of sight. And we’re increasingly hearing about companies who are demanding that their staff to return to the office for four, or even five, days a week. Alessandra Fenizia of George Washington University talks to Tim Phillips about her research into a group of hybrid workers in the UK public sector whose work patterns make it possible to compare productivity at home and in the office.