Sign up to our free Brexit and beyond email for the latest headlines on what Brexit is meaning for the UKSign up to our Brexit email for the latest insightA decline in effective governance and the “long-term scars” caused by austerity and Brexit have stifled economic growth and undermined social cohesion in the UK, according to a major study.Researchers concluded that an incoming government must make up for a “lost” decade and a half since the global financial crisis in 2008.Political scandals, such as lockdown rule-breaking in Downing Street during the pandemic and breaches of parliamentary standards by MPs, “amplified public discontent”, leading to near-record low levels of trust in many UK public institutions, the report adds.It called for urgent structural changes required to prevent “severe problems” affecting citizens’ quality of life.Researchers at the University of California, Los Angeles have warned that the next government will face “several interlocking crises” caused by past failings, with a decline in the quality of governance identified as the key cause.The report highlights that the UK’s governance has repeatedly been among the highest performing countries globally.But it identified “signs of stagnation and erosion”, with a particular focus on a lack of state capacity to address pressing social and economic challenges.The research evaluated the last 14 years of Conservative rule using the Berggruen Governance Index.This assessment views quality of life among a population as resulting from the interaction between the strength of democratic accountability and the capacity of government to function effectively.Researchers said the UK began the new millennium with high levels of government performance, but they identified factors which were said to have subsequently weakened democracy and state capacity.These included a lack of investment in infrastructure and growing regional inequalities which “resulted in a palpable political backlash”, particularly since the mid-2010s.It added: “The immediate result of frequent scandals and low economic performance will likely be the repudiation of the Conservative Party on a historic scale at the polls on July 4.“However, the (likely) incoming Labour government will have a daunting task ahead as it seeks to restore public trust and rebuild an economic model for long-term growth.”Labour leader Sir Keir Starmer and shadow health secretary Wes Streeting More