The review was prompted by repeated problems with data from the Office for National Statistics (ONS), which is responsible for providing data used in important decision-making processes. The government appointed a former top civil servant, Sir Robert Devereux, to conduct an independent investigation into the ONS after a series of issues.
Sir Robert’s report highlighted that most of the problems with the ONS’s data stem from inadequate planning and decision-making processes within the agency. The ONS has acknowledged these issues and has outlined plans to improve the quality of its economic data.
The ONS provides data that is used by government bodies to make important policy decisions, such as setting state benefits, planning housing schemes, and making decisions on migration and crime. The Bank of England also relies on the ONS’s data when considering changes to interest rates, which can have a significant impact on mortgage repayments, credit cards, and other loans.
In April, Sir Robert Devereux concluded that the root cause of these issues was the ONS’s own performance and choices made by senior leadership over the years. He noted that there was a focus on new and exciting projects rather than ensuring the quality of core economic data. His report also highlighted a reluctance at senior levels to address difficult news.
The ONS has faced criticism from its own regulator for being defensive in response to criticism, and has also faced questions about the reliability of its data on gender identity, migration figures, and job market data. During the review, the head of the ONS, Sir Ian Diamond, stepped down for health reasons.
Sir Robert recommended that the role of National Statistician be split into two, with a senior civil servant responsible for running the organization and a senior statistician providing technical advice and leadership. The ONS has acknowledged the need for improvement and has outlined plans to address these issues, including closing its data linking program and making management changes.
Overall, the ONS will continue to face budget constraints, with only additional funding for a census in 2031 and no increase to keep up with rising prices.