PT - JOURNAL ARTICLE AU - Rob Arnott AU - Campbell R. Harvey AU - Harry Markowitz TI - A Backtesting Protocol in the Era of Machine Learning AID - 10.3905/jfds.2019.1.064 DP - 2019 Jan 18 TA - The Journal of Financial Data Science PG - jfds.2019.1.064 4099 - https://pm-research.com/content/early/2019/01/23/jfds.2019.1.064.short 4100 - https://pm-research.com/content/early/2019/01/23/jfds.2019.1.064.full AB - Markup server — Error Error There was a problem handling your request. Please try again in a few minutes, or contact us if you continue to experience this problem.