Die deutsche Konjunktur hat sich deutlich abgekühlt. Das reale Bruttoinlandsprodukt dürfte im ersten Halbjahr 2001 nur noch um 1,3% über dem Vorjahr gelegen haben. Ursächlich dafür war zum einen die Verlangsamung der Weltkonjunktur und zum anderen der Kaufkraftentzug bei den privaten...

After the beginning of the war in Ukraine, energy prices in Germany increased drastically. The paper analyses responses of German firms to this energy price shock. A variety of measures and reactions at the firm-level are explored, such as substituting machinery and equipment by less energy...

The impact of environmental innovations on firm performance is ambiguous. On the one hand, regulatory-driven environmental innovation may impose additional costs to firms and lower their profits. On the other hand, eco-innovators could profit from lower uncertainty in innovation due to...

This paper analyses the relationship between past innovation output, competition, and future innovation input in a dynamic econometric setting. We distinguish two dimensions of competition that correspond to the concepts of product substitutability and entry barriers due to fixed costs. Based on...

We examine impacts of different types of environmental innovations on firm profits. Following Porter’s (1991) hypothesis that environmental regulation can improve firms’ competitiveness we distinguish regulation induced and voluntary environmental innovations. We find that innovations which...