UK Economy Structure Alters Amid Shocks

The UK economy experienced significant shocks between 2017 and 2022, including Brexit, the pandemic, and the European energy crisis. Researchers examined whether these events altered the structure of the UK's production network using data from 12 regions and 105 industries.

A key finding was that conventional measures can be misleading when assessing the interconnectedness of the economy. On the surface, it appeared that the UK became more interconnected, with standard input-output multipliers rising by around 5-6% between 2017 and 2022. However, once inflation and sector-specific price changes were factored out, this increase disappeared.

More importantly, the study found a structural change in the production network. Measures of how shocks propagate through supply chains revealed that the economy became more amplifying and concentrated, with most of this shift occurring between 2021-22. The energy sector, particularly electricity and gas, was identified as the primary driver of this change.

According to the research, resilience depends not only on average interconnectedness but also on where influence is concentrated. The study's findings suggest that monitoring these structural vulnerabilities may be just as crucial as tracking headline measures of economic activity.