Since that report, however, measurement errors in merchandise trade have jumped and now match those in services (see right-hand chart).

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Moreover, as Mervyn King, deputy governor of the Bank of England, pointed out at Jackson Hole, there are measurement errors on the other side.

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As estimates can be biased due to problems of omitted variables, endogeneity, or measurement errors, it is necessary to rely on a broad range of estimators.

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That the level of inequality before Thatcher was correct and therefore a rise is a bad thing, and also on what I consider to be measurement errors in that inequality that does exist.

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These measurement systems provide real-time analysis that can identify errors and defects on an assembly line.

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