Cross-Sectional and Time-Series Tests of Return Predictability: What Is the Difference?
72 Pages Posted: 25 May 2015 Last revised: 18 Oct 2017
Date Written: July 1, 2017
We compare the performance of time-series (TS) and cross-sectional (CS) strategies based on past returns. While CS strategies are zero-net investment long/short strategies, TS strategies take on a time-varying net-long investment in risky assets. For individual stocks, the difference between the performances of TS and CS strategies is largely due to this time-varying net-long investment. With multiple international asset classes with heterogeneous return distributions, scaled CS strategies significantly outperform similarly scaled TS strategies.
Keywords: Momentum, market timing, return predictability
JEL Classification: G10, G12, G14
Suggested Citation: Suggested Citation