Ungeheuer and Weber (2021, UW) propose a Comove measure, the fraction of weekly stock returns that are in the same direction as the market, and document that Comove positively predicts cross-sectional stock returns. We show that Comove is strongly negatively correlated with idiosyncratic...

We test the hypothesis that, when thinking about allocating money to a stock, investors mentally represent the stock by the distribution of its past returns and then evaluate this distribution in the way described by prospect theory. In a simple model of asset prices where some investors think...