We show that even when the exchange rate cannot be devalued, a small set of conventional fiscal instruments can robustly replicate the real allocations attained under a nominal exchange rate devaluation in a dynamic New Keynesian open economy environment. We perform the analysis under...

When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...

We provide explicit solutions for government spending multipliers during a liquidity trap and within a fixed exchange regime using standard closed and open-economy models. We confirm the potential for large multipliers during liquidity traps. For a currency union, we show that self-financed...

We study cross-country risk sharing as a second-best problem for members of a currency union using an open economy model with nominal rigidities and provide two key results. First, we show that if financial markets are incomplete, the value of gaining access to any given level of aggregate risk...

Most economists would agree that a hike in the federal funds rate will cause some slowdown in growth and inflation, and that the bulk of the empirical evidence is consistent with this statement. But perfectly reasonable economists can and do disagree even on the basic effects of a shock to...

The global economy has a chronic shortage of safe assets which lies behind many recent macroeconomic imbalances. This paper provides a simple model of the Safe Asset Mechanism (SAM), its recessionary safety traps, and its policy antidotes. Safety traps share many common features with...

We document that variations in government purchases generate a rise in consumption, the real and the product wage, and a fall in the markup. This evidence is robust across alternative empirical methodologies used to identify innovations in government spending (structural VAR vs. narrative...

We characterize fiscal and monetary policy in a monetary union with the potential for rollover crises in sovereign debt markets. Member-country fiscal authorities lack commitment to repay their debt and choose fiscal policy independently. A common monetary authority chooses inflation for the...

Impulse responses to government spending shocks in Standard Vector Autoregressions (SVARs) typically display "expansionary" features. However, SVARs can be subject to a "non-fundamentalness" problem. "Expectations - Augmented" VARs (EVARs), which use direct measures of forecasts of defense...

This paper considers budget expansions and adjustments in OECD countries in the last three decades. Our main results are: i) on average fiscal expansions are the results of increases in expenditures, particularly of transfer programs, while contractions are typically due to tax increases; ii)...