We study optimal government spending in a business cycle model with frictional unemployment. The Ramsey optimal policy is contrasted with a reference policy which would be first best in a frictionless economy. Results are: the Ramsey policy i) implies a higher steady state ratio of government...

The paper analyses the effectiveness of fiscal tools at the zero lower bound (ZLB). A non-linear New Keynesian DSGE model with occasionally binding constraints on monetary policy and borrowing is applied. When the ZLB binds in a liquidity trap, government spending becomes more effective in...

While the EU recovery plan provides a useful step in alleviating the economic effects of the coronavirus crisis and achieving further European integration, a permanent fiscal stabilization capacity dealing with major crises is still missing. Such a EU-wide stabilization function would be in...

Policy makers need to separate between temporary demand-driven shocks and permanent shocks in order to design optimal aggregate demand policies. In this paper we study the case of a central bank that ignores the presence of hysteresis when identifying shocks. By assuming that all low-frequency...

This paper first reviews a number of stylised facts concerning OECD country business cycles over the past four decades. In general, the amplitude of business cycles has fallen, driven mainly by declining fluctuations of domestic demand. As a result, international divergencies of cyclical...

The paper reports results on the effects of stylized stabilization policies on endogenously created fluctuations. A simple monetary model with intertemporally optimizing agents is considered. Fluctuations in output may occur due to fluctuations in labor supply which are again caused by volatile...

This paper examines the optimal response of monetary and fiscal policy to a decline in aggregate demand. The theoretical framework is a two-period general equilibrium model in which prices are sticky in the short run and flexible in the long run. Policy is evaluated by how well it raises the...

In this paper we study the role of fiscal policy in a macroeconomic model with imperfect competition in the product market. We find that fiscal spending per se and a less competitive industry reduce the responsiveness of income to productivity shocks. The government should follow a...

We quantify the fiscal multipliers in response to the American Recovery and Reinvestment Act (ARRA) of 2009. We extend the benchmark Smets-Wouters (2007) New Keynesian model, allowing for credit-constrained households, the zero lower bound, government capital and distortionary taxation. The...