We introduce a simple, easy to implement instrument for jointly eliciting risk and ambiguity attitudes. Using this instrument, we structurally estimate a two-parameter model of preferences. Our findings indicate that ambiguity aversion is significantly overstated when risk neutrality is assumed....

We demonstrate the pitfalls when extrapolating behavioral findings across different contexts and decision environments. We focus on regret theory and the use of "regret lotteries" for motivating behavior change. Here, findings from one-shot settings have been used to promote regret as a tool to...