MacroBBC BusinessJun 23, 2026· 1 min read
A Decade Post-Brexit: Economic Implications Emerge for the UK

A decade after the Brexit vote, economic data indicates a 4% long-run productivity reduction and a 15% decrease in trade intensity compared to remaining in the EU, as estimated by the OBR. These impacts are manifesting in lower investment, increased trade barriers, and sector-specific labor shortages, collectively dampening the UK's economic growth potential.
Ten years following the UK's referendum to leave the European Union, the economic consequences are becoming increasingly evident. Early assessments by numerous economists predicted long-term economic damage for the UK, and recent data provides insight into these projections.
While direct causation can be complex to isolate, the Office for Budget Responsibility (OBR) estimates that Brexit will ultimately reduce the UK's long-run productivity by 4% compared to remaining in the EU. This productivity hit translates into a significant drag on potential economic growth and, consequently, lower real wages over time. Furthermore, the OBR projects that UK trade intensity — the sum of imports and exports as a share of GDP — will be 15% lower in the long run than if the UK had remained in the EU. This reduction is attributed to new trade barriers, increased customs checks, and regulatory divergence, which have raised costs and administrative burdens for businesses engaged in international trade.
Investment flows have also shown a divergence. Foreign direct investment (FDI) into the UK has underperformed compared to other G7 nations since the referendum, suggesting a diminished attractiveness for international capital. Sectors heavily reliant on frictionless trade with the EU, such as manufacturing and agriculture, have reported increased operational difficulties and altered supply chains. While some proponents argued for new trade opportunities outside the EU, these have not yet fully offset the disruption to established trade relationships, contributing to the overall trade deficit and inflation pressures. The structural shift away from EU trade has also exacerbated labor shortages in certain sectors, particularly those reliant on EU workers pre-Brexit, further impacting productivity and wage dynamics.
Analyst's Take
The market may be overlooking the cumulative, compounding effect of reduced trade intensity and lower FDI on the UK's long-term growth trajectory beyond the immediate inflation spikes. This structural drag on productivity could translate into a sustained premium on UK inflation expectations relative to its peers, influencing Gilt yields and sterling's real exchange rate over the coming decade, even if headline inflation cools in the near term.