The correlation structure of the world equity markets varies considerably over the past 150 years. We show that correlations were high during periods of economic and financial integration. We decompose the benefits of international diversification into two parts: a component that measures...

In this paper we examine the correlation structure of the major world equity markets over 150 years. We find that correlations vary considerably through time and are highest during periods of economic and financial integration such as the late 19th and 20th centuries. Our analysis suggests that...

The correlation structure of the world equity markets varied considerably over the past 150 years and was high during periods of economic integration. We decompose diversification benefits into two parts: one component due to variation in the average correlation across markets, and a another...

In this paper we examine the correlation structure of the major world equity markets over 150 years. We find that correlations vary considerably through time and are highest during periods of economic and financial integration such as the late 19th and 20th centuries. Our analysis suggests that...

The correlations among international real estate markets are surprisingly high, given the degree to which they are segmented. While industrial, office and retail properties exist all around the world, they are not economic substitutes because of locational specificity. In addition, the broad...

We test a Wall Street investment strategy known as

Using a sample of daily net flows to nearly 1,000 U.S. mutual funds over a year and a half period, we identify a set of systematic factors that explain a significant amount of the variation in flows. This suggests the existence of a common component to mutual fund investor behavior and indicates...

We test a Wall Street investment strategy, "pairs trading," with daily data over 1962--2002. Stocks are matched into pairs with minimum distance between normalized historical prices. A simple trading rule yields average annualized excess returns of up to 11% for self-financing portfolios of...