It's a business degree. The undergrad wharton degree just happens to be called a B.S. in economics, but there's only a few economists classes in it, it's entirely a business degree with business concentrations and so on. I think he concentrated (like a major) in entrepreneurship but I might be wrong on that.

Wharton is the business school of the University of Pennsylvania. He went to business school and got and completed all the same business requirements everyone else has to take. I studied accounting at university along side finance, business administration, supply chain, and economics students. I'm sure there are plenty of schools who offer a degree just called "business," but most people have a specific business degree. I'm looking at the degree requirements right now, it's all the same stuff everyone has to take: marketing, management, logistics, stats, finance. Unless things were really different back then, an economics degree from Wharton is definitely a business degree.

Economics falls under the business umbrella at most US universities. An Economics degree will almost certainly have included finance, accounting, and marketing classes. Some schools, like my own, don't even differentiate between majors on the granted degree - any students in any of those majors just get a BSBA despite the different focus.

Wharton is similar in that all undergrad degrees are in "economics" even though students still select a major.