PT - JOURNAL ARTICLE AU - Philip Halpern TI - Investing Abroad AID - 10.3905/jpm.1993.409438 DP - 1993 Jan 31 TA - The Journal of Portfolio Management PG - 47--57 VI - 19 IP - 2 4099 - https://pm-research.com/content/19/2/47.short 4100 - https://pm-research.com/content/19/2/47.full