We study the design of efficient mechanisms under asymmetric awareness and information. Unawareness refers to the lack of conception rather than the lack of information. Assuming quasi-linear utilities and private values, we show that we can implement in conditional dominant strategies a social...

Casting mechanism design with evidence in the framework of Myerson (1982) implies that his generalized revelation principle directly applies, and we thus obtain standard notions of incentive compatible direct mechanisms. Their specific nature depends, however, on whether the presentation of...