I didn't read the study but this making the mythical man-month assumption. Also, let's say this is the case, unhappy tend to want to be happy and I don't think

I didn't read the study but this making the mythical man-month assumption. Also, let's say this is the case, unhappy tend to want to be happy and I don't think you will have creative people, such as programmers, very long if they are unhappy.