Abstract | Understanding the poor productivity performance of the UK economy since the financial crisis is complicated by the well-known challenges in estimating total factor productivity (TFP) using only revenue data. We develop a structural framework to infer quality-adjusted TFP from an estimated firm-level revenue function. We use microdata for two sectors previously identified as being significant contributors to the UK’s productivity growth slowdown – manufacturing and ICT – from 2008 to 2019. The revenue function is estimated using the Blundell-Bond System GMM estimator. We also use an alternative cost-shares approach to identifying and measuring TFP. For both methods, we find an overall fall in TFP levels in manufacturing and a rise in ICT. We find a striking decline of between 13 and 18 percent in the level of within-firm manufacturing TFP, and of between 11 and 16 percent in ICT, although with reallocation effects differing between the two sectors. The finding of declining within-firm TFP is robust although the magnitude varies between methods. We discuss a possible explanation for this extended UK productivity puzzle based on the relative underperformance of UK firms in international markets. |
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