The missing effect of investments of firms in information and communication technologies on productivity is studied by various recent papers (e.g. Oliner and Sichels 1994, Landauer 1995, Brynjolfsson and Hitt 1996). Several explanations are given for this missing link. Our paper deals with two...

R&D expenditures of firms varies vastly between and within industries. In recent years a lot of theoretical and empirical studies attempted to explain the distribution of R&D expenditures. Four main factors repeatedly appeared in this literature: Firm size, market power, appropriability and...

Wo liegen Deutschlands regionale und sektorale Innovationsschwerpunkte? Innovative regionale Kompetenzzentren zeichnen sich vor allem dadurch aus, daß die ansässigen Unternehmen intensiv auf Hochschulabsolventen zurückgreifen, viele Naturwissenschaftler und Ingenieure beschäftigen und...

In 2020, firms expected their innovation expenditures to decrease by about 2% in 2020 compared to 2019. This decline is much smaller than that in 2009 following the financial crisis, when innovation expenditures fell by 11%. However, smaller firms with 5 to 99 employees planned to cut their...