The chart below shows the same measure, but just over the past 18 months. The trend is unmistakable.

Why this decoupling? One explanation I have heard is that investors see the troubles in Greece more as a political crisis than a financial one. Financial crises, such as the one that rocked the world in 2008, tend to more directly affect financial institutions that span multiple regions. Political crises, on the other hand, are less likely to spill over borders. Or so the theory says. Personally, I have difficulty seeing the difference between the two types of crises in this case.

This article was written by Reid Steadman, managing director, non-equity indices, S&P Dow Jones Indices.

© S&P Dow Jones Indices LLC 2013. Indexology® is a trademark of S&P Dow Jones Indices LLC (SPDJI). S&P® is a trademark of Standard & Poor’s Financial Services LLC and Dow Jones® is a trademark of Dow Jones Trademark Holdings LLC, and those marks have been licensed to SPDJI. This material is reproduced with the prior written consent of SPDJI. For more information on SPDJI, visit http://www.spdji.com.

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