According to online reports, Goldman Sachs strategist Oppenheimer said that European and other overseas stock markets may continue to outperform U.S. stocks for now, and they reiterated their recommendation to diversify their investments into assets outside the United States. The average correlation between national stock markets has dropped to its lowest level since the 1990s. However, they said any further reduction in U.S. economic growth expectations could also hurt overseas stock markets. If the main reason for the further correction in U.S. stocks is concerns about economic growth rather than dominant technology stocks, then historical performance suggests other markets will fall as well.