RT Journal Article SR Electronic T1 The Value of a Blank Check JF The Journal of Portfolio Management FD Institutional Investor Journals SP 82 OP 91 DO 10.3905/jpm.1994.409480 VO 20 IS 4 A1 Harry M. Markowitz A1 Donald W. Reid A1 Bernard V. Tew YR 1994 UL https://pm-research.com/content/20/4/82.abstract AB