We provide an introduction to optimal fiscal and monetary policy using the primal approach to optimal taxation. We use this approach to address how fiscal and monetary policy should be set over the long run and over the business cycle. We find four substantive lessons for policymaking: Capital...

The Organisation for Economic Co-Operation and Development (OECD) recently proposed an interest barrier to fight tax base erosion and profit shifting (BEPS). We use the introduction of such an interest deductibility restriction in Germany as a quasi-experiment and find significant corporate...

In this working paper, we decompose fiscal policy in three components: i) responsiveness, ii) persistence and iii) discretion. Using a sample of 132 countries, our results point out that fiscal policy tends to be more persistent than responding to output variations. We also found that while the...