Agents' valuations are interdependent if they depend on the signals of all agents. Previous literature has claimed that with interdependent valuations and multidimen-sional, but independent, signals, efficient auction design is impossible. This paper shows that, on the contrary, it is always...

This paper considers mechanism design problems in environments with ambiguity-sensitive individuals. The novel idea of the paper is to introduce ambiguity in mechanisms so as to exploit the ambiguity sensitivity of individuals. We prove a revelation principle for the partial implementation of...