Images of Wharton MBA students were photoshopped to be bald and have hair, then shown to people who had to rate them.
Baldness was found to look:
- more dominant
- more confident
- more masculine
- less attractive
- older (2-4 years)
- an inch taller
- a bit stronger (25 lb)
http://opim.wharton.upenn.edu/DPlab/papers/publishedPapers/Mannes_2012_%20Shorn%20scalps%20and%20perceptions%20of%20male%20dominance.pdf