Revisiting impossibility theorems of unawareness in standard information structure: A survey of unawareness in economics

Abstract

This paper is a survey article focusing on the impossibility theorem of unawareness, which has garnered attention in economics and renders discussions of unawareness trivial. By focusing on the impossibility theorem, the survey clarifies how subsequent research overcomes the impossibility of unawareness. Although this survey covers only a part of the research on unawareness, it provides key points that are essential for advancing this field of study.