Dang, I can't find the exact study I read all those years ago, but iirc it was mostly logarithmic until it got to the extreme right side... and then it dipped down a bit. Which I think makes sense, because imagine being that Shah, only ever having girls take an interest in you to rob you of your money. :p

I also found a study that suggested that reported life satisfaction rose with more $$$ (probably due to psychological feelings of superiority or making it, if I had to guess), but day to day experiential happiness did not after $70k.

I wouldn't mind it if I made double what I do right now, admittedly. But I wouldn't, say, take a double salary for working for a markedly* unethical company or one without a delicious cafeteria.

(* they're all unethical to some degree.)