A technology index based on R&D, skilled labour and capital vintage was developed and used to characterise industrial firms by technology level, facilitating the analysis of relationships between technology and economic performance at the firm level. The results show that technology-intensive...

In the 1990s, patenting schemes changed in many respects: Upcoming new technologies accelerated the shift from price competition towards competition based on technical inventions, a worldwide surge in patenting took place, and the 'patent thicket' arose as a consequence of strategic patenting....

In this paper, it is argued that investments in information and communication technologies (ICT) are closely linked to complementary innovations and are most productive in firms with experience from earlier innovations. In the empirical analysis based on firm-level panel data covering the period...