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Chirinko, Robert S.
Curran, Christopher
Year of Publication: 
Series/Report no.: 
CESifo Working Paper 4236
This paper presents empirical evidence on one aspect of central bank communication policy - formal pronouncements by central bankers - to better understand whether this channel matters and, if so, the nature of the information being transmitted. We examine the relationship between three types of pronouncements from Chairman Alan Greenspan - speeches, testimonies, and FOMC meetings (STF's) - and volatility in the 30-year U.S. Treasury bond futures market. Using high-frequency, intraday data proves important in uncovering the impacts of pronouncements on the bond market. Three questions relevant to central bank communication policy are addressed (see Figure 1 for a summary). We find that STF's matter for bond market volatility, that this impact depends on the transmission of information (rather than just noise), and that this information reflects both substantive content and a coordinating signal. We further find that speeches only deliver content, that testimonies are largely a coordinating device, and that FOMC meetings play both roles. These findings of an important coordination channel document the relevance of the global games model of Morris and Shin and the herding model of Banerjee and the associated policy implication that pronouncements by the central bank may reduce welfare by overwhelming important private information.
Document Type: 
Working Paper

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