RT Journal Article SR Electronic T1 Do Stock Prices Predict or Respond? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 4 OP 4 DO 10.3905/jpm.1984.4 VO 10 IS 2 A2 Peter L Bernstein YR 1984 UL https://pm-research.com/content/10/2/4.abstract AB