Macroeconomic news and bond market volatility1We thank Walter Toshi Baily, Bob Korajczyk, Jim Poterba, Mark Watson, seminar participants at the University of Chicago, Columbia University, Cornell University, and the University of Montreal, and especially Ludger Hentschel (the referee) for helpful comments. We also thank Mark Mitchell for supplying data, and Amy C. Ko and Sydney Ludvigson for research assistance. Lamont was supported by the FMC Faculty Research Fund at the Graduate School of Business, University of Chicago. A portion of this research was completed while Lumsdaine was a National Fellow at the Hoover Institution. We also thank the Financial Research Center at Princeton University for support. A previous version of this paper circulated as `Public Information and the Persistence of Bond Market Volatility'.1