eprintid: 10071934 rev_number: 24 eprint_status: archive userid: 608 dir: disk0/10/07/19/34 datestamp: 2019-04-09 11:37:16 lastmod: 2021-11-25 23:30:52 status_changed: 2019-11-25 12:51:53 type: article metadata_visibility: show creators_name: Portier, F creators_name: Beaudry, P creators_name: Fève, P creators_name: Guay, A title: When is Nonfundamentalness in SVARs a Real Problem? ispublished: pub divisions: UCL divisions: B03 divisions: C03 divisions: F24 keywords: NonFundamentalness, Business cycles, SVARs, News shocks note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: In SVARs, identification of structural shocks can be subject to nonfundamentalness, as the econometrician may have an information set smaller than the economic agents' one. How serious is that problem from a quantitative point of view? In this paper we propose a simple diagnostic for the quantitative importance of nonfundamentalness in structural VARs. The diagnostic is of interest as nonfundamentalness is not an either/or question, and its quantitative implications can be more or less severe. As an illustration, we apply our diagnostic to the identification of TFP news shocks and we find that nonfundamentalness is of little quantitatively importance in that context. date: 2019-10 date_type: published publisher: Elsevier official_url: https://doi.org/10.1016/j.red.2019.03.011 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1645458 doi: 10.1016/j.red.2019.03.011 lyricists_name: Portier, Franck lyricists_id: FPORT31 actors_name: Portier, Franck actors_id: FPORT31 actors_role: owner full_text_status: public publication: Review of Economic Dynamics volume: 34 pagerange: 221-243 citation: Portier, F; Beaudry, P; Fève, P; Guay, A; (2019) When is Nonfundamentalness in SVARs a Real Problem? Review of Economic Dynamics , 34 pp. 221-243. 10.1016/j.red.2019.03.011 <https://doi.org/10.1016/j.red.2019.03.011>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10071934/1/RED%20Preprint%20Version.pdf