Munich Personal RePEc Archive

The Quality of China's GDP Statistics

Holz, Carsten (2013): The Quality of China's GDP Statistics.

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Abstract

Since the 1998 “wind of falsification and embellishment,” Chinese official GDP statistics have repeatedly come under scrutiny. This paper evaluates the quality of China’s GDP statistics in four stages. First, it reviews past and ongoing suspicions of the quality of GDP data and examines the evidence. Second, it documents the institutional framework for data compilation and concludes on the implications for data quality. Third, it asks how the National Bureau of Statistics could possibly go about credibly falsifying GDP data without being found out. Fourth, it examines if the first-and second-digit distributions of official GDP data conform to established data regularities (Benford’s Law). The findings are that the supposed evidence for GDP data falsification is not compelling, that the NBS has much institutional scope for falsifying GDP data, and that certain manipulations of nominal and real data would be virtually undetectable. Official GDP data, however, exhibit few statistical anomalies (conform to Benford’s Law) and the NBS thus either makes no significant use of its scope to falsify data, or is aware of statistical data regularities when it falsifies data.

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