Nach einer mehrjährigen Konsolidierungsphase konnte die deutsche Biotechnologiebranche zunehmend Marktanteile im internationalen Wettberwerb gewinnen. Derzeitig werden zwei Entwicklungen innerhalb der Branche intensiv diskutiert: die Osterweiterung der Europäischen Union und die zunehmende...

Die Biotechnologie, identifiziert als eine der strategischen Zukunftstechnologien, ist gekennzeichnet durch eine hohe Forschungsintensität mit breiten Anwendungsfeldern. Nach einer seit 2001 andauernden Konsolidierungsphase steht die Branche gegenwärtig vor neuen Herausforderungen: der...

Reviewing the development of network access charges in the German electricity market since 2002 reveals significant variation. While some firms continually increased or decreased their access charges, a variety of firms exhibited discontinuousn behavior with price changes in both directions....

Dieses Papier päsentiert deskriptive Evidenz zur Struktur von Ich-AG-Gründungen und Gründern aus dem Arbeitsagenturbezirk Lüneburg. Die Ergebnisse basieren auf einer Befragung aller Gründer, die zwischen Juni 2004 und Februar 2005 selbstständig geworden sind und von der Arbeitsagentur...

Using unique recently released nationally representative high-quality longitudinal data at the plant level, this paper presents the first comprehensive evidence on the relationship between exports and productivity for Germany, a leading actor on the world market for manufactured goods. It...

Using unique recently released nationally representative high-quality data at the plant level, this paper presents the first comprehensive evidence on the relationship between productivity and size of the export market for Germany, a leading actor on the world market for manufactured goods. It...

Using panel data from Spain Farinas and Ruano (IJIO 2005) test three hypotheses from a model by Hopenhayn (Econometrica 1992): (H1) Firms that exit in year t were in t-1 less productive than firms that continue to produce in t. (H2) Firms that enter in year t are less productive than incumbent...

Strong sustainability, according to the common definition, requires that different natural and economic capital stocks have to be maintained as physical quantities separately. Yet, in a world of uncertainty this cannot be guaranteed. To therefore define strong sustainability under uncertainty in...

In this paper we propose a Lagrange multiplier test for volatility interactions among markets or assets. The null hypothesis is the Constant Conditional Correlation GARCH model in which volatility of an asset is described only through lagged squared innovations and volatility of its own. The...