RT Journal Article SR Electronic T1 The Use of Economics in Portfolio Decisions JF The Journal of Portfolio Management FD Institutional Investor Journals SP 34 OP 38 DO 10.3905/jpm.1976.408570 VO 2 IS 3 A1 Harvey M. Spiro YR 1976 UL https://pm-research.com/content/2/3/34.abstract AB