RT Journal Article SR Electronic T1 Sixteen Years Since the Crash JF The Journal of Investing FD Institutional Investor Journals SP 92 OP 95 DO 10.3905/joi.2005.517179 VO 14 IS 2 A1 Donald J. Goodwin YR 2005 UL https://pm-research.com/content/14/2/92.abstract AB The persistent gap between the lucky and unlucky investors of 1987 suggests buyers should cost-average in volatile markets. The historical returns on investments bought at the very top or bottom of the volatile 1987 stock market reveals a persistent performance gap. Anecdotal evidence from the 1998-2000 technology bubble suggests longer cost-averaging periods than the 12 month buy-ins common for various mutual fund and annuity contracts. A statistically significant gap in performance will never be closed.