In this paper, we characterize adversarial decision-making as a choice between competing interpretations of evidence ("models") constructed by interested parties. We show that if a court cannot perfectly determine which party's model is more likely to have generated the evidence, then...

Recent evidence of correlated trading among networked fund managers provides an indication that professional investors exchange investment ideas. To examine the motivations underlying this type of collaboration, we design a laboratory experiment in which competing fund managers share ideas until...