We show that, in a frictionless and efficient market, an asset pricing model that better describes investors' behavior should better forecast stock index returns. We propose a dividend model that predicts, out-of-sample, 31.3% of the variation in annual dividend growth rates (1976-2015)....

We present a latent variable model of dividends that predicts, out-of-sample, 39.5% to 41.3% of the variation in annual dividend growth rates between 1975 and 2016. Further, when learning about dividend dynamics is incorporated into a long-run risks model, the model predicts, out-of-sample,...