ABSTRACT According to the log-linear return approximation, the ability of a predictor to predict future stock returns may arise from its ability to predict either the cash flows or the discount rates, or both. This paper introduces a novel nonparametric approach to investigating the time variability in the predictability channels of the equity premium within a present-value framework. Using the existing return predictors, including the measures of economic uncertainty and sentiment, we document strong time variation in both discount-rate and cash-flow channels. In comparison, the predictability of the equity premium through the cash-flow channel is more pronounced than through the discount-rate channel.