Comment by prmoustache

It really depends on the areas. On white collar jobs yes. It is more frequent in blue collars workers because it is easier to close completely or partially (several lines) in a factory than having to manage different vacations schedules. Constructions companies also do stop because you usually need most workers available + hot weather makes it harder anyway. Small/familiar companies also do it frequently because it doesn't make sense to work if you have dependencies on a number or unavailable persons.