“… Moreover, Haddad, Kozak, and Santosh (2020) andGiglio, Kelly, and Kozak (2020) stress that timevariation in risk prices is a critical property of the stochastic discount factor and equity term structure dynamics. Consistently,Chernov, Lochstoer, and Lundeby (2018) andFavero, Ortu, Tamoni, and Yang (2019) emphasize the importance of time-variation in risk prices by implementing tests of asset-pricing models exploiting multi-horizon returns and their predictability.…”