TY - BOOK AU - Fernández-Villaverde,Jesús AU - Guerrón-Quintana,Pablo A. AU - Kuester,Keith AU - Rubio-Ramírez,Juan ED - National Bureau of Economic Research. TI - Fiscal Volatility Shocks and Economic Activity T2 - NBER working paper series PY - 2011/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - August 2011; Hardcopy version available to institutional subscribers N2 - We study the effects of changes in uncertainty about future fiscal policy on aggregate economic activity. Fiscal deficits and public debt have risen sharply in the wake of the financial crisis. While these developments make fiscal consolidation inevitable, there is considerable uncertainty about the policy mix and timing of such budgetary adjustment. To evaluate the consequences of this increased uncertainty, we first estimate tax and spending processes for the U.S. that allow for time-varying volatility. We then feed these processes into an otherwise standard New Keynesian business cycle model calibrated to the U.S. economy. We find that fiscal volatility shocks have an adverse effect on economic activity that is comparable to the effects of a 25-basis-point innovation in the federal funds rate UR - https://www.nber.org/papers/w17317 UR - http://dx.doi.org/10.3386/w17317 ER -