A host of operators around the World have announced that they will market the iPhone in their respective countries. Spain is not yet one of them, but it is generally expected that there will be an announcement on June 9 regarding its arrival in Spain. It is also supposed that this will happen through Telefónica, although it is worth noting that the mobile market in Spain is fairly fragmented, s...

We present a new theory of decision under uncertainty: third-generation prospect theory (PT). This retains the predictive power of previous versions of prospect theory, but extends that theory by allowing reference points to be uncertain while decision weights are specified in a rank-dependent way. We show that PT preferences respect a state-conditional form of stochastic dominance. The theory ...

We review recent progress towards increasing solar cell efficiencies beyond the Shockley-Queisser efficiency limit. Four main approaches are highlighted: multi-junction cells, intermediate-band cells, hot carrier cells and spectrum conversion. Multi-junction cells use multiple solar cells that selectively absorb different regions of the solar spectrum. Intermediateband cells use one junction wi...