This paper proposes a tractable New Keynesian (NK) economy with endogenous adjustment in product quality that nests the canonical framework. Endogenous quality choice reduces the slope of the traditional NK Phillips curve and ampliffes the economy's response to productivity shocks. This leads to...

Global inflation has risen sharply from its lows in mid-2020, on rebounding global demand, supply bottlenecks, and soaring food and energy prices, especially since the Russian Federation's invasion of Ukraine. Markets expect inflation to peak in mid-2022 and then decline, but to remain elevated...

Concerns of prolonged stagnation periods with near-zero interest rates and deflation have become widespread in many advanced economies. We build a theoretical framework that rationalizes two theories of low interest rates: expectations-trap and secular stagnation in a unified setting. We...

This paper studies fiscal policy in a New Keynesian DSGE model with endogenous technology growth in which scarring can occur endogenously through hysteresis effects in TFP. Both demand- and supply-driven recessions can weaken investment in R&D and technology adoption, thus depressing the...

We propose an event-study research design to identify the nature and propagation of large unusual shocks in DSGE models and apply it to study the macroeconomic effects of the Covid shock. The initial outbreak is represented as the onset of a new shock process where the shock loads on wedges...

This paper studies monetary policy strategies under endogenous technology dynamics and low r. Endogenous growth strengthens the gains from make-up strategies relative to inflation targeting, especially if policy space is reduced. This result is due to the long-run non-neutrality of money and the...

We analyze the impact of shifts in the industrial composition of the economy on the distribution of the frequency of price change and its consequences for the slope of the Phillips curve for the United States. By combining product-level microdata on the frequency of price change with data on...

We document empirical regularities of disaggregated inflation and consumption and study whether multisectoral New Keynesian models can explain them. We focus on higher moments of the inflation and consumption growth distributions as well as on the contemporaneous comovement of these two...

We study the welfare performance of various simple monetary policy rules under bounded rationality (BR) along the lines of Gabaix (2020) in a New Keynesian model with sticky wages and an effective lower bound (ELB) on interest rates. Policy strategies with a strong history dependence lose their...

This paper examines the recent increase of the measured inflation rate to assess the degree to which the acceleration is due to problems created (largely on the supply side) by the pandemic versus pressures created on the demand side by pandemic relief. Some have attributed the inflation to...