Institutional investors have expanded their scope of investments in two important ways during the past 15 years. They have become more active in the direct purchase of real estate and they have become more global in their approach to investing. However, except for a few notable exceptions, U.S. institutions tend to stay close to home when it comes to real estate investments.
The increased presence of real estate and foreign stocks in the portfolios of institutions may have been motivated in part by academic studies that suggest that covariances between U.S. stocks and both foreign stocks and U.S. commercial real estate are quite low, indicating that the latter asset classes provide diversification to portfolios invested primarily in U.S. stocks. The reluctance to purchase foreign real estate directly is probably due to the increased expenses and the information problems associated with purchasing real property outside of the U.S.. In addition, there has been no research that we are aware of that examines the risk/return trade-offs involved in such investments.