The Peculiar Case of the UK: A Case Study in the Fall of the UK Economy After Brexit

On July 20, Andy Burnham took office as Prime Minister of the United Kingdom, making him the seventh prime minister to take office in the past ten years. Just weeks earlier, Keir Starmer of Burnham’s own Labour Party announced his resignation after a faltering economy and losses across the board in the May elections. 

Although the UK has experienced its share of short prime ministerial tenures before, the rapid succession of leaders after the 2016 referendum was unusually fast for a parliamentary democracy. For example, David Cameron served as Prime Minister for six years, and Tony Blair for 10 years, while their post-Brexit counterparts Starmer and Sunak managed just roughly two years each. For a country that once ruled ¼ of the globe, the United Kingdom has struggled to maintain stability in office and to keep its economy together. As it stands, the once-grand British Empire seems to have taken a turn for the worse, with its GDP per capita now surpassed by every U.S. state, including Mississippi, the poorest state in the country, on a per-person output basis. 

While it may be tempting to attribute this recent turnover to an unfortunate series of unsuccessful leaders, doing so overlooks the deeper structural forces behind Britain’s political instability. Within this 10-year span, members from both sides of the aisle, Labour and Conservative, male and female, old and young, have tried their hand at taking the reins, but all have fallen short. Examining these structural forces doesn’t just explain Britain’s decade of instability domestically. Looking beyond British politics, Britain’s failure is a unique real-world case of regional disintegration, where a state has attempted to end its participation in a regional group, despite its deep entanglement with the alliance they just voted to leave.

The first and obvious elephant in the room is the referendum that started this predicament, Brexit. Rather than explaining the implications of what the UK’s exit from the European Union would look like, the 2016 referendum instead asked voters a simple yes-or-no question: “Should the United Kingdom remain a member of the European Union or leave the European Union?” It left unresolved whether Britain should prioritize market access, regulatory autonomy, immigration control or political distance from EU institutions. Blindsided and frustrated by the country’s decision to leave the EU despite campaigning heavily for the UK to remain in the EU, David Cameron resigned, citing that he was not the right person to steer the country’s future that he did not support. In his place, Theresa May, Boris Johnson, and Liz Truss all had to pick up the pieces, coming up with different visions for an independent UK that never seemed to agree with one another, let alone the voters who had voted for this all in the first place. 

The resulting tug-of-war over how to navigate an independent UK has slowed the economy. Since leaving the EU, the UK’s GDP is 8% smaller than it would have been under continued EU membership. While the United Kingdom has signed 39 new trade deals with 72 different countries, these numbers still don’t make up for the lost trade with the EU. Financial Services felt the Brexit dilemma as well, as what was once considered the world's financial hub fell briefly behind Amsterdam after new EU trading rules took effect following the UK’s exit. Since early 2023, 1 in 3 children born in the UK live in poverty, a statistic that is only made harder to fix by a slower-growing economy that leaves less room for public spending.

The resulting image of the UK, its economy slowed by its exit from the EU and its people now feeling these effects on a broad scale, has been reflected in its polarization. With increasing disapproval on either side of the aisle on the state of the UK economy, as seen in the left-wing Green Party growing to 16% of UK voters saying they would vote for them, as well as the right-wing party Reform UK, surging under Nigel Farage in the May 2026 elections, many citizens are seeking alternative candidates from the traditional Conservative and Labour parties to help them understand this new world where the UK is no longer the power it once was. With this increased polarization, each new Prime Minister enters the position in already rocky waters, and so far, none have been able to steady the ship. Each new Prime Minister is now under a microscope, and any mistake is blamed on them; and since their party keeps them only as long as it wants to, each new PM has been effectively doomed from the minute they take office.

The downturn documented in this piece is not just a story of GDP and Prime Ministerial mishaps: it’s a case study in how economic hardship spreads beyond the market and into all aspects of a society’s life. Shortly after the Brexit referendum, Tell MAMA, a UK monitoring group, reported an immediate spike in hate crimes, including attacks targeting Muslim and immigrant communities as economic anxiety manifested itself into scapegoating. Now, 10 years on, far-right figures like Nigel Farage have gained mass followings, blaming mass immigration and the like for the economic woes of “real” British citizens.

Britain’s downturn in the aftermath of Brexit should serve as a reminder that economic policy is never purely just economic, because when it affects someone’s money, it affects everyone’s.