Whether it is the inter-arrival time between two consecutive votes on a story on Reddit or the comments on a video shared on Youtube, there is always a hierarchy of time scales in information propagation. One vote/comment might occur almost simultaneously with the previous, whereas another...

We present a new mechanism for encouraging risk taking within organizations that relies on the provision of decision insurance to managers. Since insurance increases the likelihood of free riding, we also introduce a technique that mitigates this moral hazard by automatically identifying the...