We study firm-level adoption of packaged software products of almost 4,000 UK sites between 2000 and 2003. We consider all software used in a firm as its software product and categorize it into related, but distinct subsystems : the core subsystem (Operating Systems), and Desktop and En-terprise...

We study the effect of new product introduction on firm value. Using a unique sample on mobile phone handset introduction by 16 major handset manufacturers over 10 years, we distinguish between imitative product introduction and truly innovative product introduction. We find that while most...

We document the evolution of product innovation and features in the mobile telephone handset market. We distinguish between two types of product innovation : vertical and horizontal innovation. Using data from 1990 - 2003, we find that some characteristics have subsequently become an industry...