Brexit Party leader Nigel Farage laughs as he meets a Royal Mail driver during the campaign trail in Exeter, ahead of this week's European elections. PRESS ASSOCIATION Photo. Picture date: Monday May 20, 2019. See PA story POLITICS Election. Photo credit should read: Ben Birchall/PA Wire

An unprecedented trend of voting volatility amplified by a pattern of ‘electoral shocks’ means it will be extremely difficult to accurately predict the outcome of the next general election, according to new analysis from the British Election Study (BES).

The BES – which is run by The University of Manchester and Nuffield College, Oxford warns this is especially true given the picture around Brexit is still changing.

says that these shock events have caused large shifts within a more volatile electorate. It argues that by identifying and understanding electoral shocks we can explain changes in voting behaviour, but not predict future outcomes. The ongoing Brexit process means it is possible that a forthcoming election will again show high levels of voter switching, especially given the choices voters will be presented with are still in flux, organised around Brexit.

Both the 2015 and 2017 General Elections saw more people change their vote than ever before, with nearly half the country (49%) voting for different parties across the three elections from 2010-17. The BES – the leading survey of voting patterns in the UK – has identified an historic trend in which voters have become less loyal or partisan, and provides a new explanation for that trend.

It found that voters are hugely influenced by unique events or issues it describes as “electoral shocks”. Examples include the 2008 economic crash, the 2010-15 coalition government, the rise in immigration, the Scottish referendum and – most critically in the current moment – Brexit.

The BES says there are likely to be high levels of volatility in a forthcoming election, and that Brexit is likely to play a key role in defining the next election outcome, but it is not yet clear who will benefit.

“We don’t know what the Brexit situation will be on Election Day. We don’t know who will get the blame for the current political deadlock, or who will benefit. But we do expect there to be clear winners and losers because voters are now more changeable in response to such shock events. A key driver of vote choice will be how competent each party is perceived to be on Brexit,” said Professor Jane Green of Nuffield College, University of Oxford.



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