Married heterosexual men may be happiest if they earn 60 per cent of their households’ total income and their wives earn 40 per cent, data from the US suggests
Source:
https://www.newscientist.com/article/2224081-married-heterosexual-men-happiest-earning-50-per-cent-more-than-wives/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home