“Sticky Expectations and the Profitability Anomaly ” by Augustin Landier
Wednesday, 29 March 2017 | 2:30pm - 4:00pm
Toulouse School of Economics
University of Geneva and Swiss Finance Institute
MIT Sloan and CEPR
We propose a theory of one of the most economically significant stock market anomalies, i.e. the profitability" anomaly. In our model, investors forecast future profits using a signal and sticky belief dynamics a la Coibion and Gorodnichenko (2012). In this model, past profits forecast future returns (the profitability anomaly). Using analyst forecast data, we measure expectation stickiness at the form level and find strong support for three additional predictions of the model: (1) analysts are on average more pessimistic for high profit firms, (2) the profitability anomaly is stronger for stocks which are followed by stickier analysts, and (3) it is also stronger for stocks with more persistent profits.