All types naive and canny

Aviad Heifetz, Willemien Kets

نتاج البحث: ورقة عمل / طبعة اوليةورقة للنقاش


This paper constructs a type space that contains all types with a finite depth of
reasoning, as well as all types with an infinite depth of reasoning – in particular those types for whom finite-depth types are conceivable, or think that finite depth types are conceivable in the mind of other players, etcetera. We prove that this type space is universal with respect to the class of type spaces that include types with a finite or infinite depth of reasoning. In particular, we show that it contains the standard universal type space of Mertens and Zamir (1985) as a belief-closed subspace, and that this subspace is characterized by common belief of infinite-depth reasoning. This framework allows us to study the robustness of classical results to small deviations from perfect rationality. As an example, we demonstrate that in the global games of Carlsson and van Damme
(1993), a small ‘grain of naivet´e’ suffices to overturn the classical uniqueness results in that literature.
اللغة الأصليةإنجليزيّة أمريكيّة
مكان النشرKellogg School of Management, Center for Mathematical Studies in Economics and Management Science, Evanston, IL
ناشرNorthwestern University
عدد الصفحات34
حالة النشرنُشِر - 4 أغسطس 2012

ملاحظة ببليوغرافية

Discussion Paper #1550
JEL Classification: C700, C720, D800, D830


أدرس بدقة موضوعات البحث “All types naive and canny'. فهما يشكلان معًا بصمة فريدة.

قم بذكر هذا