The recent economic report has sparked an intriguing debate: Could Rachel Reeves have been undermined by unreliable data? The new chancellor, John Healey, has responded to positive economic news by touting government success, but a deeper analysis reveals a more complex story. The report suggests that UK productivity has been significantly underestimated, with annual growth of 1.6% since mid-2024, up from 0.3% in the previous decade. This challenges the prevailing narrative that productivity has been stagnant under the Labour government.
The Office for Budget Responsibility (OBR) had previously downgraded productivity projections from 1.3% to 1%, which had significant implications for public finances. Weaker productivity means weaker growth, leading to lower tax revenues and a larger public deficit. The OBR's rethink was attributed to the long-term failure of productivity growth post-2008 financial crisis, and it left little room for Labour's fiscal policies.
The new estimates from the Centre for Economic Performance at the London School of Economics (LSE) offer a different perspective. They use an alternative dataset based on company tax returns through the PAYE system, which provides a more accurate picture of the workforce. This dataset shows a decline in the number of employees, contrary to the LFS's increase.
This discrepancy raises questions about the reliability of the LFS and the ONS's data collection methods. The ONS has been struggling with low response rates, leading to a loss of accredited official statistic status for the LFS in 2024. The new, online version of the LFS, which is expected to be ready in November 2026, may provide more accurate results, but the urgency of fixing the data collection process is evident.
The LSE's findings suggest that productivity has increased, and this could have prevented the OBR downgrade and the subsequent tax grab. John Van Reenen, a former Reeves adviser, believes that the UK is getting more output from its workers, and this improvement may be linked to Labour's policies, such as increased public investment and relaxed planning rules.
However, the sustainability of this productivity boost is uncertain. AI's potential role in driving productivity is a hypothesis worth exploring. The latest GDP figures show rising business investment, but experts caution that high energy prices could impact this trend. The UK's jobs data has long been a concern, and the ONS's struggles with data collection highlight the need for a more robust system.
As Rachel Reeves returns to the backbenches, she may reflect on how dodgy data contributed to her challenges as Chancellor. The report's findings underscore the importance of accurate data in economic decision-making and the potential consequences of relying on unreliable sources.
