This paper explores the relationship between central bank communication and market sentiment,and proposes a new measure. Market sentiment is proxied using a Twitter-based metric: theCentral Bank Surprise Index. The empirical study covers three cases: the Federal Reserve, theEuropean Central Bank...

Most meetings of the Governing Council of the ECB take place intra muros at the ECB's premises in Frankfurt. Some meetings, however, are held extra muros, i.e. outside Frankfurt, hosted by one of the national central banks. This paper uses high-frequency surprises from meeting days to show that...