Based on a standard idea-based model of endogenous growth we test the hypothesis that regional innovative activity is path-dependent, and investigate the geographical scope of knowledge spillovers. Using data for West-German regions, two alternative indicators of the stock of knowledge are...

This paper studies the evolution of early retirement due to disease and injury in the German labor force between 1988 and 2004. Using data from the German Federation of Public Pension Providers, the IMS Health Drug Launches database and the WHO Mortality Database, we show that new drug launches...

This paper examines the role of the health gradient the positive correlation between household income and health in individual retirement behavior, using data from the German Socio-economic Panel (GSOEP). We first estimate agegroup-specific health gradients and find their slope increases with...

We study the well-known multiplicative Lognormal cascade process in which the multiplication of Gaussian and Lognormally distributed random variables yields time series with intermittent bursts of activity. Due to the non-stationarity of this process and the combinatorial nature of such a...

Globalization has affected business cycle developments in OECD countries and has increased activities of firms across national borders. This paper analyzes whether these two developments are linked. We use a new firm-level dataset on the foreign activities of German firms to test whether foreign...

We analyze cyclical co-movement in credit, house prices, equity prices, and long-term interest rates across 17 advanced economies. Using a time-varying multi-level dynamic factor model and more than 130 years of data, we analyze the dynamics of co-movement at different levels of aggregation and...

Does distance matter for the volatility of international real and financial transactions? We show that it does, in addition to its well-established relevance for the level of trade. A simple model of trade with endogenous markups shows that demand shocks have a larger impact on trade between...

Surges and reversals of short-term foreign liabilities are often held responsible for instabilities in international financial markets. Yet, empirical evidence on the factors determining the maturity of capital flows is scant. This paper analyzes the determinants of foreign assets of German...

This paper presents some ideas about determinants of merger waves and some evidence on their effect on profitability and employment. A brief survey of previous merger waves and an analysis of the recent one give support to the hypothesis that sectoral shocks are at the root of merger waves....