DP8387 Stock Prices and Monetary Policy Shocks: A General Equilibrium Approach

Author(s): Edouard Challe, Chryssi Giannitsarou
Publication Date: May 2011
Keyword(s): Asset prices, Monetary policy, New Keynesian general equilibrium model
JEL(s): E31, E52, G12
Programme Areas: International Macroeconomics, Financial Economics
Link to this Page: cepr.org/active/publications/discussion_papers/dp.php?dpno=8387

Recent empirical literature documents that unexpected changes in the nominal interest rates have a significant effect on stock prices: a 25-basis point increase in the Fed funds rate is associated with an immediate decrease in broad stock indices that may range from 0.5 to 2.3 percent, followed by a gradual decay as stock prices revert towards their long-run expected value. In this paper, we assess the ability of a general equilibrium New Keynesian asset-pricing model to account for these facts. The model we consider allows for staggered price and wage setting, as well as time-varying risk aversion through habit formation. We find that the model predicts a stock market response to policy shocks that matches empirical estimates, both qualitatively and quantitatively. Our findings are robust to a range of variations and parameterizations of the model.