Prior studies show that investor learning about earnings-based return predictors from academic research erodes return predictability. However, the signaling power of “bottom-line” earnings has declined over time, which complicates assessments of investor learning about profitability signals...

We show in a simple framework that momentum trading can exist in equilibrium and momentum trading is profitable. Properties of the model fit the empirics well. First, the model captures in a parsimonious manner both short-term overreaction and long-term reversals. Second, it predicts that...

This note investigates the impact of investors' memory limitations on stock-market prices. I consider a simple asset-pricing model in which investors allocate limited cognitive resources to retrieve information from memory and to learn about the data generating process of multiple assets. I show...

This paper offers theoretical, empirical, and simulated evidence that momentum regularities in asset prices are not anomalies. Within a general, frictionless, rational expectations, risk-based asset pricing framework, riskier assets tend to be in the loser portfolios after (large) increases in...

We study firm-level characteristics that a manager would employ as signalling tools in order to time the market (i.e. repurchases and issues). Following the market timing framework, we develop a two-factor asset pricing model comprising a “market” and a “mispricing” factor, which is able...

This paper is the second in a series of critiques of the assumption that stable economic relations exist between certain "firm characteristics" and expected returns. The paper explains why this is not the case for past returns and provides theoretical, empirical, and simulated evidence that the...

We investigate whether a simple long-short weekly trading strategy based on mispricing among ETNs generates profits in excess of the S&P 500 over the sample period of June 6, 2006 to January 30, 2012. Ignoring transaction costs, liquidity, and short selling constraints we find the following. (1)...