The knowledge society is characterized by knowledge becoming a kind of commodity that can be traded and priced. Knowledge-intensive business services (KIBS) are representative for such a knowledge-based economy, since their main input and output factor is directly related to knowledge itself....

Increased productivity is one of the main drivers of economic growth. Considering the increasing importance of the service sector in many economies studies of productivity in service firms are essential, but still rare. Questions concerning the underlying reasons for productivity differences in...