The National Bureau of Statistics (NBS) reported that China’s GDP grew by 1.0% quarter-on-quarter in Q4 2023 in seasonally adjusted terms. This was below the 1.5% expansion in Q3 2023, yet year-on-year growth increased from 4.9% to 5.2%. The reason for this was the base effect.
China’s year-on-year GDP data in 2023 has been consistently flattered by the fact it is relative to a year of weak growth in 2022, when the economy’s slowdown was compounded by President Xi’s zero-Covid policy. Positive base effects have therefore masked underlying weakness in GDP data in 2023. While the NBS reported that the Chinese economy grew 5.2% in 2023, EFGAM calculations show that in the absence of base effects, this growth rate would have been around 3.3% (see Chart 1).1 This implies that base effects boosted China’s annual GDP growth by 1.9 percentage points last year, consistent with the 2 percentage points reported in the Financial Times.2, 3