But the rate of illness had no correlation with the frequency of chilies eaten, leading to speculation that other factors may be at work.

ECONOMIST: Chilies

The Madoff approach had virtually no correlation with the performance of the overall stockmarket.

ECONOMIST: A handful of outsiders come out of the crisis in credit

Likewise, evaluating applicants based on whether they had held multiple jobs for less than six months has no correlation to job tenure or performance.

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