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Closing the gap between absolute and relative measures of localization, concentration or specialization

机译:缩小本地化,集中化或专业化的绝对和相对度量之间的差距

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摘要

Empirical studies on the evolution of concentration, specialization or localization of economic activity have provided ambiguous results that strongly depend on the researcher's choice of the reference. This paper develops a decomposition method for Theil indices of localization that clarifies where this ambiguity originates from. The method allows expressing the difference between absolute and relative Theil indices of localization in terms of Theil indices that are subject to straightforward interpretation. Illustrations show that the divergence of absolute from relative localization in the EU-15 and in UK manufacturing is largely a statistical artifact inherited from the peculiarities of the industry classifications.
机译:关于经济活动集中度,专业化或本地化演变的实证研究提供了模棱两可的结果,这些结果在很大程度上取决于研究者对参考文献的选择。本文开发了Theil本地化指标的分解方法,以阐明这种歧义的起源。该方法允许根据易于理解的Theil指标来表达绝对和相对的Theil指标之间的差异。插图显示,在欧盟15国和英国制造业中,绝对值与相对本地化的差异主要是从行业分类的特殊性继承的统计伪像。

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