RT Journal Article SR Electronic T1 Benefits of international diversification JF The Journal of Portfolio Management FD Institutional Investor Journals SP 57 OP 61 DO 10.3905/jpm.1990.409287 VO 16 IS 4 A1 Warren Bailey A1 Rene M. Stulz YR 1990 UL https://pm-research.com/content/16/4/57.abstract AB