The Time Varying Effect of Monetary Policy Surprise on Stock Returns: Bursting Bubble Beating Forward Guidance

Abstract

The authors study the time varying effects of monetary policy on the stock returns in order to capture changes in the effectiveness of monetary policy over time. They find that a one percentage point surprise federal funds rate increase decreases the one-day stock return by 1.33% during the period 1989 to 2000, and by 7.47% during the period 2001 to 2007, i.e., over five times more. Also, surprises of monetary policy announcements do not have significant effects on the stock returns for most of the 1990s, but have significant effects during the 2000s. The significant period coincides with higher transparency and greater efforts from the Federal Reserve to communicate with the public, especially in the grounds of future policy, i.e., forward guidance.