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We derive asymptotic properties of estimators and test statistics to determine - in a grouped data setting - common versus group-specific factors. Despite the fact that our test statistic for the number of common factors, under the null, involves a parameter at the boundary (related to unit...
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vanished, (ii) the relative volatility of employment has risen, and (iii) the relative (and absolute) volatility of the real …
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vanished, (ii) the relative volatility of employment has risen, and (iii) the relative (and absolute) volatility of the real …
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