We analyze the state of the art of indicators on e-government, e-health, e-procurement and e-participation. We survey the main methodological properties of these indicators, and highlight their heuristic potential. Further, we address empirically the issue of the explanation of the availability...

During the past two decades a big effort has been made in exploring the complementarities between information and communications technology (ICT) adoption, investment in human capital and organizational change, and how these affect economic performance. Such investigations, however, remain...