Correlation of Returns in Non-Contemporaneous Markets
14 Pages Posted: 5 May 1998
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Correlation of Returns in Non-Contemporaneous Markets
Correlation of Returns in Non-Contemporaneous Markets
Abstract
This article investigates the effects of non-overlapping trading hours on the correlations and cross-serial correlations of returns in non-contemporaneous stock markets and develops a simple formula for calculating contemporaneous correlation measures. The presence of these effects is illustrated empirically using stock market returns data for the U.S., Japan and the U.K. The results indicate that daily correlations of returns in these markets are biased downward while daily cross-serial correlations of returns are biased upwards. These findings have significant implications for studies investigating the transmission mechanism of stock price innovations across national stock markets and portfolio management.
JEL Classification: G12, F30
Suggested Citation: Suggested Citation
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