Bidders in procurement auctions often face avoidable fixed costs. This can make bidding decisions complex and risky, and market outcomes volatile. If bidders deviate from risk neutral best responses, either due to faulty optimization or risk attitudes, then equilibrium predictions can perform...

Many disasters are foreshadowed by insufficient preventative care. In this paper, we argue that there is a true problem of prevention, in that insufficient care is often the result of rational calculations on the part of agents. We identify three factors that lead to dubious efforts in care....

We introduce a computer program which calculates an agent’s optimal behavior according to Case-based Decision Theory (Gilboa and Schmeidler, 1995) and use it to test CBDT against a benchmark set of problems from the psychological literature on human classification learning (Shepard et al.,...