codes of the underworld

The signaling problems faced by criminals are unusual in the following regard. On one hand they wish to signal a certain untrustworthiness, namely that they are criminals in the first place. This is useful for both meeting other criminals and also for intimidating potential victims. On the other hand, the criminals wish to signal that they are potentially cooperative, for the purpose of working with other criminals. Sending these dual signals isn't easy and Gambetta well understands the comp