We present evidence on venture capitalists' (VCs) impact on turnover of executives for a sample of nearly 47,000 German high-tech start-ups between 1995 and 2004. We confirm that the presence of VCs increases the probability of a change in the initial executive team. Additionally, we take a...

Starting in 2006 the German economy currently experiences a cyclical revival which spreads to the labor market. Unemployment decreases markedly and regular employment rises. At present, virtually all professional forecasts expect this upswing to continue in the foreseeable future. Against this...

This paper provides new estimates of a timevarying NAIRU for Germany taking account of the structural break caused by German unification based on the Kalman Filter and on a partially linear model as two alternatives. Estimating a standard Phillips curve, the sum of coefficients associated with...

This article explores the propensity to patent in the light of the disclosure effect. Unlike earlier approaches concerned with the patenting decision, we take into account that a disclosure effect may decrease the merits of patenting by facilitating inventing around the patent for competitors....

Die Bekämpfung der Arbeitslosigkeit genießt oberste wirtschaftspolitische Priorität - dieser Feststellung wird kaum jemand widersprechen wollen. Eher scheiden sich die Geister an der Frage nach dem "wirklichen" quantitativen Ausmaß der Unterbeschäftigung, ihren Ursachen und welche...

The sensitivity of innovation activities with respect to the business cycle is often assumed to be small. In this paper the hypothesis on cyclical dependence of innovation activities is tested for firms in the German manufacturing, and additionally for SMEs. To this end firms’ innovation...

Barriers to entry are regarded as major impediments to the working of markets. Entry must not necessarily actually take place - the perceived threat of entry may encourage incumbent firms to behave as if they are in a competitive market, even if they are not. We present empirical evidence on...

Theory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical work, however, this relation is frequently not found or only a weak connection is observed. We compare the performance of concentration and market share variables, which are...

Der Beitrag enthält eine Neuschätzung der inflationsstabilen Arbeitslosenquote (NAIRU) für Westdeutschland 1980 bis 1998. Nach einer Darstellung des konzeptionellen Rahmens der NAIRU einschließlich verschiedener Varianten, welche beispielsweise exogenen Schocks und dem Hysterese-Phänomen...

This study provides empirical evidence for the economic rationality of wage rigidities. Theoretically wage rigidities can result from contracts, implicit contracts, from efficiency wages and from insider-outsider behaviour. Based on a survey of 801 firms strong support has been found for...