Real-time Price Discovery via Verbal Communication: Method and Application to Fedspeak Roberto G´omez-Cram Marco Grotteria∗ November 2, 2020 Abstract We advance the hypothesis and establish empirically that investors' expectations adjust slowly to Central Banks' messages. From the videos of post-FOMC-meeting press conferences, we extract the words, and timestamp them at the millisecond. We align the transcripts with high-frequency data for several financial assets to provide granular evidence on the investors' expectations formation process. When the Chairman discusses the changes between current and previous policy statement, price volatility and trading volume spike dramatically, and prices move in the same direction as they did around the statement release. Our approach allows us to quantify in monetary terms the value of information rigidity. ∗We thank Jules van Binsbergen, Anna Cieslak, Jo~aoCocco, Kent Daniel, James Dow, Itamar Drechsler, Francisco Gomes, Jo~aoGomes, Christopher Hennessy, Ralph Koijen, Matteo Leombroni, Emanuel Moench, Michael McMahon, Stefan Nagel, Stephen Schaepher, Jessica Wachter, and Amir Yaron for helpful discussions and/or comments. We thank the AQR Asset Management Institute for generous financial support. Yutong Hu, Oksana Smirnova, and Tianhao Yin provided excellent research assistantship. The authors are both assistant professors of finance at the London Business School, and can be reached at
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[email protected]. 1 Electronic copy available at: https://ssrn.com/abstract=3613702 1 Introduction When policy analysis ignores the role of expectations, and their evolution, policy conclu- sions are misleading (Lucas, 1972, 1973, 1976). Because of that, central bankers today give high priority to communication with financial markets in an attempt of manag- ing the public's expectations.