His work in managerial economics and investing has led to a modern wave of value investing within mutual funds, hedge funds, diversified holding companies, and other investment vehicles. Throughout his career, Graham had many notable disciples who went on to receive substantial success in the world of investment, including Irving Kahn and Buffett, the latter going on to describe him as the second most influential person in his life after his own father. Another one of Graham's famous students was Sir John Templeton.