“…Hendry (1999) proposes IIS as a procedure for testing parameter constancy. Further discussion, recent developments, and applications appear in Hendry, Johansen, and Santos (2008), Doornik (2009), Johansen and Nielsen (2009, 2013, Hendry and Santos (2010), Ericsson (2011aEricsson ( , 2011bEricsson ( , 2012, Ericsson and Reisman (2012), Bergamelli and Urga (2013), Hendry and Pretis (2013), Hendry and Doornik (2014), Pretis, Mann, and Kaufmann (2015), and Castle, Doornik, Hendry, and Pretis (2015). proposes a new application for IIS-as a generic test for time-varying forecast bias.…”