PT - JOURNAL ARTICLE AU - Tony Estep AU - Mark Kritzman TI - TIPP AID - 10.3905/jpm.1988.409172 DP - 1988 Jul 31 TA - The Journal of Portfolio Management PG - 38--42 VI - 14 IP - 4 4099 - https://pm-research.com/content/14/4/38.short 4100 - https://pm-research.com/content/14/4/38.full