An interesting quote from the abstract: "But, even though Bill Gates and Steve Jobs founded two of the world‘s most successful companies, they are not representative of technology and engineering company founders. Indeed, a larger proportion of tech founders are middle-aged, well-educated in business or technical disciplines, with degrees from a wide assortment of schools. Twice as many U.S.-born tech entrepreneurs start ventures in their fifties as do those in their early twenties, as this paper will show."