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Report
How to escape a liquidity trap with interest rate rules
I study how central banks should communicate monetary policy in liquidity trap scenarios in which the zero lower bound on nominal interest rates is binding. Using a standard New Keynesian model, I argue that the key to anchoring expectations and preventing self-fulfilling deflationary spirals is to promise to keep nominal interest rates pegged at zero for a length of time that depends on the state of the economy. I derive necessary and sufficient conditions for this type of state-contingent forward guidance to implement the welfare-maximizing equilibrium as a globally determinate (that is, ...
Speech
Panel remarks at the Brookings Institution
Remarks at The Fed at a crossroads: Where to go next?, Brookings Institution, Washington, D.C.
Report
An interest rate rule to uniquely implement the optimal equilibrium in a liquidity trap
We propose a new interest rate rule that implements the optimal equilibrium and eliminates all indeterminacy in a canonical New Keynesian model in which the zero lower bound on nominal interest rates (ZLB) is binding. The rule commits to zero nominal interest rates for a length of time that increases in proportion to how much past inflation has deviated?either upward or downward?from its optimal level. Once outside the ZLB, interest rates follow a standard Taylor rule. Following the Taylor principle outside the ZLB is neither necessary nor sufficient to ensure uniqueness of equilibria. ...
Working Paper
Alternative Strategies: How Do They Work? How Might They Help?
Several structural developments in the U.S. economy—including lower neutral interest rates and a flatter Phillips curve—have challenged the ability of the current monetary policy framework to deliver on the Federal Open Market Committee’s (FOMC) dual-mandate goals. This paper explores whether makeup strategies, in which policymakers seek to stabilize average inflation around the inflation target over some horizon, could strengthen the FOMC’s ability to fulfill its dual mandate. The quantitative analysis discussed here suggests that credible makeup strategies may provide some moderate ...
Working Paper
Monetary Policy and Durable Goods
We analyze monetary policy in a New Keynesian model with durable and nondurable goods each with a separate degree of price rigidity. The model behavior is governed by two New Keynesian Phillips Curves. If durable goods are sufficiently long-lived we obtain an intriguing variant of the well-known ?divine coincidence.? In our model, the output gap depends only on inflation in the durable goods sector. We then analyze the optimal Taylor rule for this economy. If the monetary authority wants to stabilize the aggregate output gap, it places much more emphasis on stabilizing durable goods inflation ...
Discussion Paper
Assessing monetary accommodation: a simple empirical model of monetary policy and its implications for unemployment and inflation
This note suggests that household wealth growth and a long-forward interest rate can be used to construct a simple and convenient reference standard for assessing the current stance of monetary policy. It shows that the difference between the federal funds rate and this reference interest rate is a powerful predictor of the unemployment rate and inflation, producing real-time forecasts that are competitive with consensus-based forecasts from surveys of forecasting professionals. Moreover, one can understand past FOMC policy actions as efforts to adjust the stance of policy, so measured, in ...
Working Paper
Monetary Policy and Liquid Government Debt
We examine the conduct of monetary policy in a world where the supply of outside money is controlled by the fiscal authority-a scenario increasingly relevant for many developed economies today. Central bank control over the long-run inflation rate depends on whether fiscal policy is Ricardian or Non-Ricardian. The optimal monetary policy follows a generalized Friedman rule that eliminates the liquidity premium on scarce treasury debt. We derive conditions for determinacy under both fiscal regimes and show that they do not necessarily correspond to the Taylor principle. In addition, ...
Working Paper
Optimal Monetary Policy Regime Switches
An economy that switches between high and low growth regimes creates incentives for the monetary authority to change its rule. As lower growth tends to produce lower real interest rates, the monetary authority has an incentive to increase the inflation target and increase the degree of inertia in setting rates in an attempt to keep the nominal rate away from the zero lower bound. An optimizing monetary authority therefore responds to permanently lower growth by slightly increasing both the inflation target and inertia; focusing solely on the inflation target ignores a key margin of ...
Working Paper
Frequency Dependence in a Real-Time Monetary Policy Rule
We estimate a monetary policy rule for the US allowing for possible frequency dependence?i.e., allowing the central bank to respond differently to more persistent innovations than to more transitory innovations, in both the unemployment rate and the inflation rate. Our estimation method uses real-time data in these rates?as did the FOMC?and requires no a priori assumptions on the pattern of frequency dependence or on the nature of the processes generating either the data or the natural rate of unemployment. Unlike other approaches, our estimation method allows for possible feedback in the ...