PT - JOURNAL ARTICLE AU - Jerry C. Wagner TI - Why Market Timing Works AID - 10.3905/joi.1997.408422 DP - 1997 May 31 TA - The Journal of Investing PG - 78--81 VI - 6 IP - 2 4099 - https://pm-research.com/content/6/2/78.short 4100 - https://pm-research.com/content/6/2/78.full