People who are “good-looking” make about 12-14% more money than those who are unattractive, says South China Morning Post’s production executive (digital) Salome Grouard, quoting from a North American study (Hamermesh and Biddle 1994).
This is due to the “halo effect” where one aspect of a person such as their beauty or good looks are taken as representative for their whole character.
