What Did Most Billionaires Study?

What Did Most Billionaires Study? Economics was the most common major of the 100 wealthiest billionaires, Match College recently found, with Harvard the most common undergraduate college. What did the world’s richest people study? Bill Gates- Pre-Law. Warren Buffett- Business Administration, Economics. Mark Zuckerberg- Psychology, Computer Science. Larry Ellison- Science. Carlos Slim Helu- Civil Engineering.