Berkshire Hathaway’s Buffett On Diversification

In his 2014 letter preview, Buffett states that, far from being a weak choice, indexing can often achieve investor’s goals far more easily than complicated picking strategies. [buffett] This is a special guest post by Robert R. Johnson, Ph.D., CFA, CAIA. He is a full professor of finance at the Heider College of Business at Creighton University and a director of RS Investment Management. He formerly served as the Deputy CEO of CFA Institute and was responsible for many facets of the organization – most notably, the venerable CFA Program.  He is co-author of a recently published Wiley book entitled…