“…The literature on stock return predictability is vast but mixed. Examples of this include, among many, Campbell and Shiller (1988), Fama and French (1988), Goyal and Welsh (2003), Ang and Bekaert (2007), Campbell and Thompson (2008), Cochrane (2008), Kellard et al (2010), Park (2010), McMillan and Wohar (2013), Narayan and Bannigidadmath (2015), Phan et al (2015) and Bannagadadmath and Narayan (2016). Within this literature there is a significant subset that examines the ability of predictability to vary across regimes of behaviour, including explicit non-linear models.…”