"Were the U.S. to persistently earn substantially more on its foreign investments ("U.S. claims") than foreigners earn on their U.S. investments ("U.S. liabilities"), the likelihood that the current environment of sizeable global imbalances will evolve in a benign manner increases. However,...

This paper studies net foreign assets and the differential returns between gross foreign assets and liabilities for a sample of 49 countries between 1981 and 2007. It shows that investment income is more important than capital gains in imparting a drift to net foreign assets over the long-run,...