This paper studies the impact of national fiscal rules on government size as measured by the ratio of government expenditures to gross domestic product. We develop a model of the budgetary process and show that a common pool problem may arise which can be mitigated through fiscal rules. We test...

Ein Important Project of Common European Interest (IPCEI) ist ein staatliches Förderprogramm in der EU, in dessen Rahmen die teilnehmenden Mitgliedstaaten mit eigenen Mitteln Forschung und Innovation privater Unternehmen in den eigenen Grenzen unterstützen können. Die zentrale Frage, die sich...

German policy during the Eurozone crisis supposedly follows an ordoliberal tradition. In this paper, we discuss to what extent this contention holds and to what extent Germany pragmatically responded to different crisis phenomena. A proper analysis of ordoliberal thinking reveals that the...

This article explores how German pension and retirement policy could be made more sustainable, focusing on selected current options for action rather than attempting to provide a comprehensive overview. Before turning to specific problems and perspectives, the article first discusses key...

This paper analyses the short- and long-run effects of trade openness on financial development in a panel including data on 35 European countries over the period 2001-2019. For this purpose, it uses the PMG (pooled mean group) estimator for dynamic panels developed by Pesaran et al. (1999). The...

We study a fiscal policy model in which the government is present-biased, leading to an excessive public deficit. An optimally designed fiscal rule needs to trade off the benefit of committing the government to not overspend against the benefit of granting it flexibility to react to shocks to...

For any emission trading system (ETS) with quantity-based endogenous supply of allowances, there exists a negative demand shock, e.g. induced by abatement policy, that increases aggregate supply and thus cumulative emissions. We prove this green paradox for a general model and then apply it to...

Mitten in der Griechenland-Krise haben die Präsidenten der fünf wichtigsten europäischen Institutionen Vorschläge für eine weitere Integration der Europäischen Währungsunion unterbreitet. Sie beziehen sich dabei auf die Wirtschafts-, Finanzmarkt- und Bankenunion und gehen sogar so weit,...

What policy objective should a common central bank in a heterogeneous monetary union pursue? Should it base its decisions on the EU-wide average of inflation and growth or should it instead focus on (appropriately weighted) national welfare losses based on national rates of inflation and growth?...