Never thought studies into this subject matter were undertaken but I like the conclusion that was drawn, everything has a limit to what extent it can go. But between money and happiness, you want unlimited happiness because this usually leads to great connections with people, money can make things happen but it can be a source of problems.
What is your opinion on the subject of "money & happiness"?
It's very difficult to separate the two because both mimic each other in one way or another, happiness is original while money can get you synthetic happiness which is the happiness you don't want because it will get you fake friends and fake relationships but when it's done this happiness you thought you had will be gone too.