A considerable literature has focused on the determinants of total factor productivity (TFP), prompted by the empirical finding that TFP accounts for the bulk of long-term growth. This paper offers a deeper reason for such focus: the welfare of a representative consumer is summarized by current...

Wireless self-powered micro sensors were developed and constructed, allowing new measurement locations in the mill (WP1). Most suitable energy harvesting systems were selected according with sensors locations. A wireless portable vibration device was constructed which allow making vibration...

How is traffic off-loading evolving over time, both in terms of technical and of market developments, and how does this evolution influence the need for spectrum? It is widely recognized that traffic on the macro cellular network is growing rapidly, largely as a result of impressive take-up of...

Despite the accelerated pace at which progress in wireless technologies occurs, it is not uncommon to observe that some Mobile Operators (MOs) do not upgrade their mobile services, while their competitors adopt the newest technological standards. I propose an explanation for this apparent...

While the newest Information and Communication Technologies (ICTs), such as the internet, are in some ways unique, in other respects they have historical predecessors. For example, the experiences of the introduction of the telegraph and the telephone provide certain parallels with newer ICTs....