PT - JOURNAL ARTICLE AU - Robert A Ferguson TI - Unbundling AID - 10.3905/jpm.1975.408532 DP - 1975 Apr 30 TA - The Journal of Portfolio Management PG - 44--48 VI - 1 IP - 3 4099 - https://pm-research.com/content/1/3/44.short 4100 - https://pm-research.com/content/1/3/44.full