To clarify the causal links between financial activity and economic growth, three theoretical models are analyzed and a structural equation path models is estimated. In the modeling part, poverty traps result from large fixed costs or high proportions of real investment to run a financial...

An endogenous growth model with a financial sector is formulated, and empirical analyses are conducted. The model exhibits structural shifts and breaks caused by institutional change, suggesting that a linear approach is inadequate. To address this point empirically, we fit data for 90 countries...

This paper investigates contagion effects. In a model with highly and lowly informed investors we show that a currency crisis in one country can trigger a crisis in another country. Portfolio losses of the highly informed investors in one country will force them to withdraw capital from the...

A nonparametric Data Envelopment Analysis (DEA) is performed on hospitals in the federal state of Saxony (Germany) and in Switzerland. This study is of interest from three points of view. First, contrary to most existing work, patient days are not treated as an output but as an input. Second,...

This paper analyzes the determinants of the interest margin of German banks over the period 1995-2007, explicitly addressing differences among different bank groups. We use three empirical models to focus on the following aspects: the time evolution of the interest margin, the average...

Total factor productivity (TFP) growth allows for additional health care services under restricted resources. We examine whether hospital policy can stimulate hospital TFP growth. We exploit variation across German federal states in the period 1993 to 2013. State governments decide on hospital...

This paper presents the first MIMIC (multiple indicator multiple causes) model estimate of the size and development of the shadow economy and of do-it-yourself (DIY) activities in Germany from 1970 to 2005. By 2005, they reached a level of about 17% and 4.94%. While the shadow economy has...

Monetäre Schätzansätze zur Erfassung der Schattenwirtschaft. Ein Vergleich verschiedener Methoden Das Phänomen der Schattenwirtschaft hat in der Öffentlichkeit reges Interesse auf sich gezogen, wobei vor allem zwei Fragen diskutiert werden: Wie groß ist die Schattenwirtschaft eigentlich,...

"Finanzintermediäre und Effektivität der Geldpolitik" Der gesamtwirtschaftliche Einfluß von Finanzintermediären, der aus monetaristischer Sicht von nur untergeordneter Bedeutung ist und in hochaggregierten keynesianischen Modellen oft unberücksichtigt bleibt, wird in...