Is it better to be smart--or popular?"Intelligence has long been emphasized as a major determinant of success in life…" So begins a ponderous research paper by four scholars writing under the aegis of National Bureau of Economic Research (the entity that decides, officially, when recessions start and end).But it's not intelligence that interests them. It's how popular you were (or weren't) in high school. Does such popularity in any way relate to your earning potential as an adult? And if does, how determinative might it be?