If permanent output is uncertain, tax smoothing can be perilous: both debt levels and tax rates are difficult to stabilize and may drift upwards. One practical remedy would be to target the debt. However, our simulations confirm that such a policy would require undesirably volatile fiscal...

Researchers in policymaking institutions have expended significant effort to develop a new generation of macro models with more rigorous microfoundations. This paper provides a summary of the applications of two of these models. The Global Economy Model is a quarterly model that features a large...

Fiscal rules—legal restrictions on government borrowing, spending, or debt accumulation (like the Gramm-Rudman-Hollings Act in the United States)—have recently been adopted or considered in several countries, both industrial and developing. Previous literature stresses that such laws...

This paper proposes a probabilistic approach to public debt sustainability analysis (DSA) using "fan charts." These depict the magnitude of risks-upside and downside-surrounding public debt projections as a result of uncertain economic conditions and policies. We propose a simulation algorithm...

This paper examines the sustainability of fiscal policy under uncertainty in three emerging market countries, Brazil, Mexico, and Turkey. For each country, we estimate a vector autoregression (VAR) that includes fiscal and macroeconomic variables. Retrospectively, a historical decomposition...

This paper analyzes the scope for systematic rules-based fiscal activism in open economies. Relative to a balanced budget rule, automatic stabilizers significantly improve welfare. But they minimize fiscal instrument volatility rather than business cycle volatility. A more aggressively...

The paper analyzes some key policy trade-offs involved in the implementation of the Stability and Growth Pact. Greater "procedural" flexibility in the Pact's implementation may improve welfare. Procedural flexibility designates the enforcer's room to apply judgment on underlying policies and to...

Debt relief and the scaling up of aid to low-income countries should allow for greater fiscal space for expenditure programs to create long-term growth and lower poverty rates. But designing a suitable medium-term fiscal framework that fosters a sustainable delivery of better public services and...

We propose a fiscal rule that fulfills a specific debt reduction objective while maintaining significant fiscal flexibility-two overarching concerns in Israel. Not unlike the Swiss "debt brake," the rule incorporates an error-correction mechanism (ECM) through which departure from the debt...

The paper evaluates the costs and benefits of fiscal consolidation using simulations based on the IMFs global DSGE model GIMF. Over the longer run, well-targeted permanent reductions in budget deficits lead to a considerable increase in both the growth rate and the level of output. The gains may...