RT Journal Article SR Electronic T1 Universal Currency Hedges for Global Portfolios JF The Journal of Portfolio Management FD Institutional Investor Journals SP 28 OP 35 DO 10.3905/jpm.1992.409423 VO 18 IS 4 A1 Michael Adler A1 Philippe Jorion YR 1992 UL https://pm-research.com/content/18/4/28.abstract AB