"""Wastes"" has been changed to ""costs employers."" As employees recieving more leisure cannot be fairly called ""waste"" in itself, as I'm sure leisure is not considered waste by them but actually quite rewarding.   Even to the employers, perhaps if they cracked down on leisure time the working conditions would be considered undesirable by the employees and they would quit, or just work slower, or get sick from having too much stress, or perform worse in any other way. But I'll leave at that anyway because I don't know how the study came to its conclusion.  "