Bruce Preston

Learning About Monetary Policy Rules When Long-Horizon Expectations Matter

This paper considers the implications of an important source of model misspecification for the design of monetary policy rules: the assumed manner of expectations formation. In the model considered here, private agents seek to maximize their objectives subject to standard constraints and the restriction of using an econometric model to make inferences about future uncertainty. Because agents solve a multiperiod decision problem, their actions depend on forecasts of macroeconomic conditions many periods into the future, unlike the analysis of Bullard and Mitra (2002) and Evans and Honkapohja (2002). A Taylor rule ensures convergence to the rational expectations equilibrium associated with this policy if the so-called Taylor principle is satisfied. This suggests the Taylor rule to be desirable from the point of view of eliminating instability due to self-fulfilling expectations.

Precautionary Saving and Consumption Fluctuations

This paper uses the consumption Euler equation to derive a decomposition of consumption growth into four sources. These four sources are new information, and three sources of predictable consumption growth: intertemporal substitution, changes in the preferences for consumption, and incomplete markets for consumption insurance. Using household-level data, we implement this decomposition for the average growth rate of consumption expenditures on nondurable goods in the United States from 1982 to 1997. The economic importance of precautionary saving rivals that of the real interest rate, but the relative importance of each source of movement in the volatility of consumption is not precisely measured.

Generalized Empirical Likelihood Based Model Selection Criteria For Moment Condition Models

This paper proposes model selection criteria (MSC) for unconditional moment models using generalized empirical likelihood (GEL) statistics. The use of GEL-statistics in lieu of J-statistics (in the spirit of Andrews, 1999, Econometrica 67, 543-564; and Andrews and Lu, 2001, Journal of Econometrics 101, 123-164) leads to an alternative interpretation of the MSCs that emphasizes the common information-theoretic rationale underlying model selection procedures for both parametric and semiparametric models. The result of this paper also provides a GEL-based model selection alternative to the information criteria-based nonnested tests for generalized method of moments models considered in Kitamura (2000, University of Wisconsin). The results of a Monte Carlo experiment are reported to illustrate the finite-sample performance of the selection criteria and their impact on parameter estimation.

LABOR SUPPLY HETEROGENEITY AND MACROECONOMIC CO-MOVEMENT

Standard real-business-cycle models must rely on total factor productivity (TFP) shocks to explain the observed co-movement between consumption, investment and hours worked. This paper shows that a neoclassical model consistent with observed heterogeneity in labor supply and consumption, can generate co-movement in absence of TFP shocks. Intertemporal substitution of goods and leisure induces co-movement over the business cycle through heterogeneity in consumption behavior of employed and unemployed workers. The result is due to two model features that are introduced to capture important characteristics of US labor market data. First, individual consumption is affected by the number of hours worked with employed consuming more on average than unemployed. Second, changes in the employment rate, a central explanator of total hours variation, then affects aggregate consumption. Demand shocks --- such as shifts in the marginal efficiency of investment, government spending shocks and news shocks --- are shown to generate economic fluctuations consistent with observed business cycles.

The Science of Monetary Policy: An Imperfect Knowledge Perspective

New Keynesian theory identifies a set of principles central to the design and implementation of monetary policy. These principles rely on the ability of a central bank to manage expectations precisely, with policy prescriptions typically derived under the assumption of perfect information and full rationality. However, the challenging macroeconomic environment bequeathed by the financial crisis has led many to question the efficacy of monetary policy, and, particularly, to question whether central banks can influence expectations with as much control as previously thought. In this paper, we survey the literature on monetary policy design under imperfect knowledge and asses to what degree its policy prescriptions deviate from the rational expectations benchmark.

Learning the fiscal theory of the price level: some consequences of debt management policy

This paper examines how the scale and composition of public debt can affect economies that implement a combination of “passive�? monetary policy and “active�? fiscal policy. This policy configuration is argued to be of both historical and contemporary interest in the cases of the U.S. and Japanese economies. It is shown that higher average levels and moderate average maturities of debt can induce macroeconomic instability under a range of policies specified as simple rules. However, interest rate pegs in combination with active fiscal policies almost always ensure macroeconomic stability. This finding suggests that in periods where the zero lower bound on nominal interest rates is a relevant constraint on policy design, a switch in fiscal regime is desirable.

Stabilizing Expectations under Monetary and Fiscal Policy Coordination

This technical appendix provides i) some calculations underlying the model used in Eusepi and Preston (2008); and ii) some additional results that both clarify our …ndings relative to earlier learning analyses on this topic and elucidate further the role of some assumptions.

Long-Term Debt Pricing and Monetary Policy Transmission under Imperfect Knowledge

Under rational expectations, monetary policy is generally highly effective in stabilizing the economy. Aggregate demand management operates through the expectations hypothesis of the term structure: Anticipated movements in future short-term interest rates control current demand. This paper explores the effects of monetary policy under imperfect knowledge and incomplete markets. In this environment, the expectations hypothesis of the yield curve need not hold, a situation called unanchored financial market expectations. Whether or not financial market expectations are anchored, the private sector’s imperfect knowledge mitigates the efficacy of optimal monetary policy. Under anchored expectations, slow adjustment of interest rate beliefs limits scope to adjust current interest rate policy in response to evolving macroeconomic conditions. Imperfect knowledge represents an additional distortion confronting policy, leading to greater inflation and output volatility relative to rational expectations. Under unanchored expectations, current interest rate policy is divorced from interest rate expectations. This permits aggressive adjustment in current interest rate policy to stabilize inflation and output. However, unanchored expectations are shown to raise significantly the probability of encountering the zero lower bound constraint on nominal interest rates. The longer the average maturity structure of the public debt, the more severe is the constraint.

Learning the fiscal theory of the price level: Some consequences of debt-management policy

This paper examines the consequences of the scale and composition of the public debt in policy regimes in which monetary policy is ‘passive’ and fiscal policy ‘active’. This configuration of policy is argued to be of both historical and contemporary interest, in economies such as the US and Japan. It is shown that higher average levels and moderate average maturities of debt can induce macroeconomic instability for a range of policies specified as simple rules. However, interest-rate pegs combined with active fiscal policies almost always ensure macroeconomic stability. This suggests that in periods where the zero lower bound on nominal interest rates is a relevant constraint on policy design, a switch in fiscal regime is desirable.

Anchored Inflation Expectations

We develop a theory of low-frequency movements in inflation expectations, and use it to interpret joint dynamics of inflation and inflation expectations for the United States and other countries over the post-war period. In our theory long-run inflation expectations are endogenous. They are driven by short-run inflation surprises, in a way that depends on recent forecasting performance and monetary policy. This distinguishes our theory from common explanations of low-frequency properties of inflation. The model, estimated using only inflation and short-term forecasts from professional surveys, accurately predicts observed measures of long-term inflation expectations and identifies episodes of unanchored expectations.