Today we will start with a simple question: What is potentially the most overlooked weapon in the arsenal of central bankers? The use of interest rate cuts as well as increases is probably the best known tool central banks use. More recently quantitative easing has become a very popular experiment from Tokyo to London and from Frankfurt to Washington. One very obvious tool, but often not viewed as one, is communication. Central bankers use communication as a tool in order to prepare financial markets for what is about to come or to leave room to reverse a decision.