No one stop you from staying there .... instead of comparing, I have friend who stayed in Thailand while renting out his apartment in Singapore. He can only sustain his life style with this arrangement. He has no complain because he knew this is the best option. Likewise, your subordinates makes his decision to work in Singapore and enjoying his fruits at the Philippines. However, he has to face all the nonsense of working abroad, home sickness etc. It is all about choices and sacrifices. Race and IQ.