is this a new finding? I have read similar notes years before in some hindi magazine (Sarita or something similar). In nepal, we have sayings that a girl can be happier if her man has character similar to her dad. Also, the family tie remains closer if the character of father-in-law and son-in-law is similar. On the contrary, it is not sure to have good relation among mother-in-law and daughter-in-law despite both having similar character. I have noticed the above theories are mostly true among many families in my neighborhood and relative cirlce that I have watched.