This is probably the best article ever written about the efficient market theory and passive investing. It was written by Warren Buffett in 1984. http://www8.gs

This is probably the best article ever written about the efficient market theory and passive investing. It was written by Warren Buffett in 1984. http://www8.gsb.columbia.edu/rtfiles/cbs/hermes/Buffett1984.pdf http://www8.gsb.columbia.edu/rtfiles/cbs/hermes/Buffett1984....