PART I: ICT AND PRODUCTIVITY Information Technology and the Transatlantic Productivity Divergence Technical Efficiency and the Role of Information Technology Analyzing ICT Adoption across European Regions PART II: DETERMINANTS OF DEMAND FOR ICT Determinants of Usages in the Ivory Coast Adoption and Access Frequency Valuing Time Intensive Goods Contingent Valuation of Digital Identification Cards in Luxembourg Blogs and the Economics of Reciprocal Attention PART III: NEW ORGANISATIONAL FRONTIERS File Sharing and its Impact on Business Models in Music An Empirical Analysis of Organisational Innovation in Japanese SMEs Determinants of the Intra-Firm Diffusion Process of ICT Does ICT Enable Innovation in Luxembourg?