As it turns out, a recent study indicates that precise feedback in measures of health can actually lead to worse results.

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The latest available research indicates that competitive remedies such as school choice and private management of public schools show promising results for improving student achievement.

CNN: Competition, Not Standards

From their database, the authors find that a one percentage point difference in taxes results in a 0.225% reduction in the share price at takeover, and calculating backwards this indicates that the effective tax rate is 31% of the statutory one.

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