Investing Research Articles

Is stock factor timing attractive? In their September 2016 paper entitled “Timing ‘Smart Beta’ Strategies? Of Course! Buy Low, Sell High!”, Robert Arnott, Noah Beck and Vitali Kalesnik investigate whether timing of stock factor (long-short) and smart beta (long-only) strategies is attractive. They consider eight widely used factors and eight smart beta strategies. Each factor portfolio is long (short)… Keep Reading

Which equity factors have high and low expected returns? In their February 2017 paper entitled “Forecasting Factor and Smart Beta Returns (Hint: History Is Worse than Useless)”, Robert Arnott, Noah Beck and Vitali Kalesnik evaluate attractiveness of eight widely used stock factors. They measure alpha for each factor conventionally via a portfolio that is long (short)… Keep Reading

How efficiently do mutual funds capture factor premiums? In their April 2017 paper entitled “The Incredible Shrinking Factor Return”, Robert Arnott, Vitali Kalesnik and Lillian Wu investigate whether factor tilts employed by mutual fund managers deliver the alpha found in empirical research. They focus on four factors most widely used by mutual fund managers: market, size, value and momentum…. Keep Reading

How reliable and variable are the most widely accepted long-short factor premiums across asset classes? Can investors time factor premium? In their June 2019 paper entitled “Factor Premia and Factor Timing: A Century of Evidence”, Antti Ilmanen, Ronen Israel, Tobias Moskowitz, Ashwin Thapar and Franklin Wang examine multi-class robustness of and variation in four prominent… Keep Reading

Is outperformance of green (environmentally friendly) stocks relative to brown (not environmentally friendly) stocks due to firm performance or concern about the climate? In other words, do green stocks carry a climate concern premium? In their June 2021 paper entitled “Dissecting Green Returns”, Lubos Pastor, Robert Stambaugh and Lucian Taylor examine relative performance of green… Keep Reading

Do factor investing (smart beta) mutual funds capture for investors the premiums found in academic factor research? In their November 2022 paper entitled “Factor Investing Funds: Replicability of Academic Factors and After-Cost Performance”, Martijn Cremers, Yuekun Liu and Timothy Riley analyze the performance of funds seeking to capture of published (long-side) factor premiums. They group… Keep Reading

Do linear factor model specification choices inherently produce out-of-sample underperformance of investment strategies seeking to exploit factor premiums? In their January 2024 paper entitled “Why Has Factor Investing Failed?: The Role of Specification Errors”, Marcos Lopez de Prado and Vincent Zoonekynd examine whether standard practices induce factor specification errors and how such errors might explain… Keep Reading

Given the body of research on the outperformance of low-risk stocks, should the equity asset pricing community add a low-volatility factor in standard models of stock returns? In their June 2025 paper entitled “Factoring in the Low-Volatility Factor”, Amar Soebhag, Guido Baltussen and Pim van Vliet investigate adding a low-volatility factor to standard models via… Keep Reading

What are the main investment behaviors of emerging markets and component stocks? In their January 2014 paper entitled “Studies of Equity Returns in Emerging Markets: A Literature Review”, Yigit Atilgan, Ozgur Demirtas and Koray Simsek survey the stream of research on emerging markets equity return predictability and volatility. This survey covers articles in the top four finance journals (Journal of… Keep Reading

Can investors predict the return of a stock from its relationship with the dispersion of returns across all stocks? In their May 2017 paper entitled “Building Efficient Portfolios Sensitive to Market Volatility”, Wei Liu, James Kolari and Jianhua Huang examine a 2-factor model which predicts the return on a stock based on its sensitivity to (1) the value-weighted stock market… Keep Reading