It’s become an internet meme that “never in the history of calming down has anyone ever calmed down by being told to calm down.” (There are various versions.) I nonetheless urge investors, especially those in the retirement risk zone, to give Stay Calm a read. This new book is written by one of the pioneers of the passive investment management (a.k.a. indexing) industry: David Booth, founder of Dimensional Fund Advisors. Whatever the online pundits say, it is tru