Portfolio optimization focuses on risk and return prediction, yet implementation costs critically matter. Predicting …

horizon predictability, and a low volatility of the risk free rate. The model combines a rich payoff structure with a habit …

feature higher risk free rates, lower risk premiums on fully diversified and concentrated assets, less capital accumulation …, yet higher consumption and welfare. Exposure to undiversified firm risk can explain approximately 40% of the level and 20 …

This paper proposes a dynamic risk-based model that captures the high expected returns on value stocks relative to …, but that shocks to the time-varying price of risk are not. As long-horizon equity, growth stocks covary more with this … time-varying price of risk than value stocks, which covary more with shocks to cash flows. When the model is calibrated to …

value premium is larger in "bad times," due to time variation in risk preferences; (c) the unconditional CAPM fails, because … with empirical evidence, the model shows that (a) value stocks are those with higher cash-flow risk; (b) the size of the … conditional CAPM and a Fama and French (1993) HML factor outperform the unconditional CAPM …

linking the CIV factor to income risk faced by households. These three facts are consistent with an incomplete markets …