Journal Article Time-Varying Risk Premiums and the Output Gap Get access Ilan Cooper, Ilan Cooper Search for other works by this author on: Oxford Academic Google Scholar Richard Priestley Richard Priestley Search for other works by this author on: Oxford Academic Google Scholar The Review of Financial Studies, Volume 22, Issue 7, July 2009, Pages 2801–2833, https://doi.org/10.1093/rfs/hhn087 Published: 02 October 2008