Financial disasters to hedge funds, bank trading departments and individual speculative traders and investors seem to always occur because of non-diversification in all possible scenarios, being overbet and being hit by a bad scenario. Black swans are the worst type of bad scenario: unexpected...

Introduction -- Discovery of the bond-stock earnings yield differential model -- Prediction of the 2007-2009 stock market crashes in the US, China and Iceland -- The high price-earnings stock market danger approach of Campbell and Shiller versus the BSEYD model -- Other prediction models for the...