Zipf's law in China's local government work reports: A 21-year study using natural language processing and regression analysis.

PLoS One · 2025 · PMC12091883 · PMID 40392917

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a clear trendno p-value reported

The temporal analysis reveals a clear trend in Zipf coefficients, with a notable inflection point in 2011 that coincides with the 18th National Congress of the Communist Party of China in 2012.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.