In endogenous growth theory models have either increasing or constant ranges of product variety. Developments in modem biotechnology however show cases of increasing, decreasing or constant ranges of product variants. We present a simple endogenous growth model allowing for all of these three...

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 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...