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Working Paper
Policy Paradoxes in the New Keynesian Model
The most common New-Keynesian model--with sticky-prices--has potentially implausible implications in a zero-lower bound environment. Fiscal and forward guidance multipliers can be implausibly large. Moreover, the sticky-price model implies that positive supply shocks, such as an increase in productivity, will lower production, and that increased price flexibility can exacerbate such a decline in output (as well as amplifying the effects of other shocks). These results are fragile and disappear under a plausible alternative to sticky prices--sticky information: Fiscal and monetary multipliers ...
Working Paper
Small and orthodox fiscal multipliers at the zero lower bound
Does fiscal policy have large and qualitatively different effects on the economy when the nominal interest rate is zero? An emerging consensus in the New Keynesian literature is that the answer is yes. New evidence provided here suggests that the answer is often no. For a broad range of empirically relevant parameterizations of the Rotemberg model of costly price adjustment, the government purchase multiplier is about one or less, and the response of hours to a tax cut is either negative or close to zero.
Working Paper
State-Dependent Local Projections: Understanding Impulse Response Heterogeneity
An impulse response is the dynamic average effect of an intervention across horizons. We use the well-known Kitagawa-Blinder-Oaxaca decomposition to explore a response’s heterogeneity over time and over states of the economy. This can be implemented with a simple extension to the usual local projection specification that nevertheless keeps the model linear in parameters. Using our new decomposition-based approach, we show how to unpack heterogeneity in the fiscal multiplier, an object that at any point in time may depend on a number of potentially correlated factors, including existing ...
Working Paper
Fiscal Stimulus and Commercial Bank Lending Under COVID-19
We investigate the implications of extra-normal government spending under the COVID-19 pandemic for commercial bank lending growth between 2019Q4 and 2020Q4 in a large sample of over 3000 banks from 71 countries. We control for pre-pandemic structural factors, bank characteristics and government debt. To address the likely endogeneity of government assistance under the pandemic, we instrument for extra-normal spending using disparities in pre-existing national political characteristics for identification. Our results indicate that while higher government spending was associated with higher ...
Journal Article
Fiscal Multiplier
Jargon Alert on the Fiscal Multiplier
Working Paper
Fiscal Stimulus Under Average Inflation Targeting
The stimulus effects of expansionary fiscal policy under average inflation targeting (AIT) depends on both monetary and fiscal policy regimes. AIT features an inflation makeup under the monetary regime, but not under the fiscal regime. In normal times, AIT amplifies the short-run fiscal multipliers under both regimes while mitigating the cumulative multiplies due to intertemporal substitution. In a zero-lower-bound (ZLB) period, AIT reduces fiscal multipliers under a monetary regime by shortening the duration of the ZLB through expected inflation makeup. Under the fiscal regime, AIT has a ...
Report
Understanding HANK: insights from a PRANK
We show analytically that whether incomplete markets resolve New Keynesian ?paradoxes? depends primarily on the cyclicality of income risk, rather than marginal propensity to consume (MPC) heterogeneity. Incomplete markets reduce the effectiveness of forward guidance and multipliers in a liquidity trap only with procyclical risk. Countercyclical risk amplifies these ?puzzles.? Procyclical risk permits determinacy under a peg; countercyclical risk generates indeterminacy even under the Taylor principle. MPC heterogeneity leaves determinacy and paradoxes qualitatively unaffected, but can change ...
Working Paper
Fiscal Multipliers and Financial Crises
I study the effects of the US fiscal policy response to the Great Recession, accounting both for standard tools and financial sector interventions. A nonlinear model calibrated to the US allows me to study the state-dependent effects of different fiscal policies. I combine the model with data on the fiscal policy response to find that the fall in consumption would have been almost 50% larger in the absence of that response for a cumulative loss of 7.18%. Transfers and bank recapitalizations yielded the largest fiscal multipliers through new transmission channels that arise from linkages ...
Briefing
Are the Effects of Fiscal Policy Asymmetric?
Economic research on the size of the fiscal multiplier has assumed that the effects of changes in government spending are symmetric ? that is, they influence economic output to the same degree whether the change is an increase or a decrease. Richmond Fed research indicates that this is not the case; the fiscal multiplier does vary according to the direction of the fiscal action and also varies with the stage of the economic cycle. This finding sheds light on likely outcomes of fiscal policies and helps account for inconsistent estimates of the multiplier in the literature.
Report
Identifying shocks via time-varying volatility
An n-variable structural vector auto-regression (SVAR) can be identified (up to shock order) from the evolution of the residual covariance across time if the structural shocks exhibit heteroskedasticity (Rigobon (2003), Sentana and Fiorentini (2001)). However, the path of residual covariances can only be recovered from the data under specific parametric assumptions on the variance process. I propose a new identification argument that identifies the SVAR up to shock orderings using the autocovariance structure of second moments of the residuals, implied by an arbitrary stochastic process for ...