A sender chooses ex ante how information will be disclosed ex post. A receiver obtains public information and information disclosed by the sender. Then he takes one of two actions. The sender wishes to maximize the probability that the receiver takes the desired action. I show that the sender...

To identify ambiguity attitudes in general environments, we propose a noncontroversial and easy-to-apply method that first orders beliefs by their "favorableness," and then make inferences based on choices. In our first-price two-person partnership dissolving auction experiments, the partners...

Do people know their own risk preferences, or do risk choices change with experience and observation? We provide a clean and straightforward test in the laboratory. People make an initial decision concerning a lottery choice and then experience 24 practice periods in which they roll the dice,...