eprintid: 10152942 rev_number: 9 eprint_status: archive userid: 699 dir: disk0/10/15/29/42 datestamp: 2022-08-01 13:34:06 lastmod: 2023-08-10 09:05:16 status_changed: 2022-08-01 13:34:06 type: article metadata_visibility: show sword_depositor: 699 creators_name: Christensen, Timothy M title: Existence and uniqueness of recursive utilities without boundedness ispublished: pub divisions: C03 divisions: F24 divisions: B03 divisions: UCL keywords: Stochastic recursive utility, Ambiguity, Model uncertainty, Existence, Uniqueness note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: This paper derives primitive, easily verifiable sufficient conditions for existence and uniqueness of (stochastic) recursive utilities for several important classes of preferences. In order to accommodate models commonly used in practice, we allow both the state space and per-period utilities to be unbounded. For many of the models we study, existence and uniqueness is established under a single, primitive “thin tail” condition on the distribution of growth in per-period utilities. We present several applications to robust preferences, models of ambiguity aversion and learning about hidden states, and Epstein–Zin preferences. date: 2022-03 date_type: published publisher: Elsevier BV official_url: https://doi.org/10.1016/j.jet.2022.105413 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1967599 doi: 10.1016/j.jet.2022.105413 lyricists_name: Christensen, Timothy lyricists_id: TMCHR37 actors_name: Christensen, Timothy actors_id: TMCHR37 actors_role: owner full_text_status: public publication: Journal of Economic Theory volume: 200 article_number: 105413 issn: 0022-0531 citation: Christensen, Timothy M; (2022) Existence and uniqueness of recursive utilities without boundedness. Journal of Economic Theory , 200 , Article 105413. 10.1016/j.jet.2022.105413 <https://doi.org/10.1016/j.jet.2022.105413>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10152942/1/fp20220114.pdf