Q-Targeting in New Keynesian Models
- 56 Downloads
We consider optimal monetary policy in a model that integrates credit frictions in the standard New Keynesian model with sticky prices and wages as well as adjustment costs of capital. Different from traditional models with credit frictions, such as those by Carlstrom and Fuerst (Econ Theory 12:583–597, 1998), our model is able to generate an anti-cyclical external finance premium as observed empirically in the U.S. economy. Monetary policy is characterized by a Taylor rule according to which the nominal interest rate is set as a function of the deviation of the inflation rate from its target rate, the output gap, and Tobin’s q. The latter is measured by the relative price of newly installed capital. We show that monetary policy should optimally decrease interest rates with higher capital prices. However, the consideration of Tobin’s q implies only small welfare effects. These results are robust with respect to a more general Epstein and Zin (Econometrica 57:937–969, 1989) welfare specification and to exogenous shifts to both the atemporal marginal rate of substitution between consumption and leisure as well as the households’ discounting behavior.
KeywordsAsset prices Monetary policy New Keynesian model Q targeting
JEL ClassificationE12 E32 E52 G12
This work is supported by the German Research Foundation (Deutsche Forschungsgemeinschaft) under grant MA 1110/3-1 within its priority program ”Financial Market Imperfections and Macroeconomic Performance”. We gratefully acknowledge this support.
- Basu, S., & Bundick, B. (2012). Uncertainty shocks in a model of effective demand. In NBER working paper. No. 18420.Google Scholar
- Bernanke, B. S., & Gertler, M. (1999). Monetary policy and asset price volatility. Economic Review, Federal Reserve Bank of Kansas City, Quarter IV, 17–51.Google Scholar
- Bernanke, B. S., Gertler, M., & Gilchrist, S. (1999). The financial accelerator in a quantitative business cycle framework. In J.B. Taylor & M. Woodford (eds.), Handbook of macroeconomics, Volume 1C. pp. 1341–1393. North-Holland: Amsterdam.Google Scholar
- Carlstrom, C. T., & Fuerst, T. S. (1997). Agency costs, net worth, and business fluctuations: A computable general equilibrium analysis. American Economic Review, 87, 893–910.Google Scholar
- Chari, V. V., Kehoe, P. J., & McGrattan, E. R. (2009). New Keynesian models: Not yet useful for policy analysis. American Economic Journal: Macroeconomics, 1(1), 242–266.Google Scholar
- Christiano, L. J., Eichenbaum, M. S., & Trabandt, M. (2015). Understanding the great recession. American Economic Journal: Macroeconomics, 7, 110–167.Google Scholar
- Christiano, L., Ilut, C., Motto, R., & Rostagno, M. (2010). Monetary policy shocks and stock market booms. In Proceedings—Economic policy symposium. Federal Reserve Bank of Kansas City: Jackson Hole. pp. 85–145.Google Scholar
- Machado, V. D. G. (2012). Monetary policy and asset price volatility. In Working Paper Series, Banco Central do Brasil. No. 274.Google Scholar
- Schmitt-Grohé, S., & Uribe, M. (2004b). Optimal operational monetary policy in the Christiano-Eichenbaum-Evans model of the US business cycle. In Centre for Economic Policy Research (CEPR) discussion paper No. 4554.Google Scholar
- Schmitt-Grohé, S., & Uribe, M. (2005). Optimal fiscal and monetary policy in a medium-scale macroeconomic model: Expanded version. In National Bureau of Economic Research (NBER) Working Paper, No. W11417.Google Scholar