TY - JOUR AU - Ferson,Wayne E. AU - Heuson,Andrea AU - Su,Tie TI - Weak and Semi-Strong Form Stock Return Predictability, Revisited JF - National Bureau of Economic Research Working Paper Series VL - No. 10689 PY - 2004 Y2 - August 2004 UR - http://www.nber.org/papers/w10689 L1 - http://www.nber.org/papers/w10689.pdf N1 - Author contact info: Wayne E. Ferson Department of Finance and Business Economics University of Southern California 3670 Trousdale Parkway Suite 308 Los Angeles, CA 90089-0804 Tel: 213/740-5615 Fax: 213/740-6650 E-Mail: ferson@marshall.usc.edu AB - This paper makes indirect inference about the time-variation in expected stock returns by comparing unconditional sample variances to estimates of expected conditional variances. The evidence reveals more predictability as more information is used, and no evidence that predictability has diminished in recent years. Semi-strong form evidence suggests that time-variation in expected returns remains economically important. ER -