How would this work when substantial equity is involved? It makes sense that if you drop your hours, your salary would drop in proportion. But if a substantial amount of your total comp is from unvested equity, it doesn't makes as much sense. Your employer can't take away unvested equity, right? If so it seems like your employer would have much less incentive to want to do something like this - you may be working half as much, but your total comp only drops by like 25% or something.