Individuals derive benefits from their connections, but these may, at the same time, transmit external threats. Individuals therefore invest in security to protect themselves. However, the incentives to invest in security depend on their network exposures. We study the problem of designing a...

Conventional wisdom suggests that optimism should be positively associated with risk taking. However, this has hardly been directly tested in the laboratory. In this paper, we report an experiment regarding risk perception and risk taking. Our data supports the hypothesis that two sufficient...