Search Results
Working Paper
Bias in Local Projections
Local projections (LPs) are a popular tool in applied macroeconomic research. We survey the related literature and find that LPs are often used with very small samples in the time dimension. With small sample sizes, given the high degree of persistence in most macroeconomic data, impulse responses estimated by LPs can be severely biased. This is true even if the right-hand-side variable in the LP is iid, or if the data set includes a large cross-section (i.e., panel data). We derive a simple expression to elucidate the source of the bias. Our expression highlights the interdependence between ...
Discussion Paper
The Expected Real Interest Rate in the Long Run : Time Series Evidence with the Effective Lower Bound
In response to the global financial crisis, the Federal Open Market Committee lowered the target for the federal funds rate to a range of 0 to 25 basis points in December 2008, and maintained that target range until the end of 2015. Over that same period, longer-term interest rates in the United States were at historically low levels.
Discussion Paper
Oil, Equities, and a "Nonbinding" Zero Lower Bound: The Monetary Policy Response to COVID-19
We analyze the recent behavior of oil and equity prices in the context of our earlier work, Datta, et al. (2021), which focuses on the previous zero lower bound (ZLB) episode, in the aftermath of the Global Financial Crisis. We find that the correlation between oil and equity returns and the responsiveness of these returns to macroeconomic surprises are perhaps elevated relative to normal times but somewhat moderated relative to the previous ZLB episode.
Working Paper
Understanding the New Normal : The Role of Demographics
Since the onset of the Great Recession, the U.S. economy has experienced low real GDP growth and low real interest rates, including for long maturities. We show that these developments were largely predictable by calibrating an overlapping-generation model with a rich demographic structure to observed and projected changes in U.S. population, family composition, life expectancy, and labor market activity. The model accounts for a 1?percentage point decline in both real GDP growth and the equilibrium real interest rate since 1980?essentially all of the permanent declines in those variables ...
Working Paper
Substitution Bias and Fixed-Weight Price Indices in Time-Dependent Pricing Models
This paper compares inflation in true price indices to inflation in fixed-weight price indices. We construct model-based inflation measures in time-dependent pricing models that are analogous to measures of inflation in the data, e.g., the Consumer Price Index. In the standard new Keynesian model, when inflation rises rapidly, the differences between inflation in those indices and true price indices are increasing in the degree of price stickiness and the elasticity of substitution across goods. For commonly used parameter values, those differences are large and persistent for increases in ...
Working Paper
Oil, Equities, and the Zero Lower Bound
From late 2008 to 2017, oil and equity returns were more positively correlated than in other periods. In addition, we show that both oil and equity returns became more responsive to macroeconomic news. We provide empirical evidence and theoretical justification that these changes resulted from nominal interest rates being constrained by the zero lower bound (ZLB). Although the ZLB alters the economic environment in theory, supportive empirical evidence has been lacking. Our paper provides clear evidence of the ZLB altering the economic environment, with implications for the effectiveness of ...
Working Paper
Monetary Policy, Incomplete Information, and the Zero Lower Bound
In the context of a stylized New Keynesian model, we explore the interaction between imperfect knowledge about the state of the economy and the zero lower bound. We show that optimal policy under discretion near the zero lower bound responds to signals about an increase in the equilibrium real interest rate by less than it would when far from the zero lower bound. In addition, we show that Taylor-type rules that either include a time-varying intercept that moves with perceived changes in the equilibrium real rate or that respond aggressively to deviations of inflation and output from their ...