But GMI's data were put to the test in an October 2009 study that measured the correlation of GMI's rankings to stock performance from mid-2003 to mid-2008.
Flying Dog advertises its status as the favoured drink of the celebrated radical journalist Hunter S Thompson, and a 2012 study found a positive correlation between the concentration of microbreweries in a state and its likelihood to vote for Barack Obama.
Part of this analysis requires a correlation study to test if the asset class has unique risk.
The results of the only large study to have hinted at a correlation have been discredited, because it allowed the women (rather than their doctors) to say what was wrong with themselves.
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The study found a correlation between the increase in stress and the number of days holiday taken by executives in the countries concerned.
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The study also found a correlation between hours spent on paid work and the frequency of sex in marriage.
This is why no serious study of cancer rates in relation to proximity to power plants has ever shown any correlation ( Jason Harris, Idaho State University), as hard as many anti-nuclear activists have tried.
Those who are concerned about the deleterious effect of spiralling executive pay in the City are given ammunition in the form of a study by Obermatt, a consultancy, which shows there is no correlation between pay for senior executives and stock performance on the FTSE 100.
There has never been a conclusive study done that proves any direct correlation between the major market indices and the presence of either insider buying or insider selling in the aggregate.
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Researchers in the present study analyzed survey responses from 215 employees of Chinese oil and gas companies, first to establish whether a strong correlation exists between workplace ostracism and increased psychological stress.
It is not uncharitable to say the Canadian study is confusing, and it is not unwarranted to say its findings might be the result of chance as a real correlation.
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