We analyze the effectiveness of fiscal policy in general and automatic stabilizers in particular to stabilize output in Eurozone member states under the current institutional framework of fiscal governance. First, a descriptive analysis based on macro data is conducted for the period 2007-2014, bothfor ex-post as well as real-time data. In the second step, we analyze the potential of automatic stabilizers for output stabilization in steady state, i.e., when member states have achieved balanced budgets, using micro data and microsimulation tools for Europe and the United States.