Brexit and world growth – what are the risks?

The initial global market reaction to the UK Brexit vote was very negative and in our view overdone. Nevertheless, we expect the uncertainty to linger for a while, with the vote having refocused investors on existing vulnerabilities in the world economy. Our new forecasts see the main negative impacts on growth being in the UK, the Eurozone and Japan. Risks to our new forecasts remain skewed to the downside, with a significant danger of world growth dropping below 2% this year. Our new forecasts see UK growth dropping to 1.4% a year in 2017–18, down from 2.2–2.3% a year before. In the Eurozone, growth will be around 0.2% a year weaker in 2017–18 and Japan is also a loser as a result of the risk aversion‐driven stronger yen, with growth at just 0.3% in 2017 from 0.5%. The size of the initial global market sell‐off makes no sense in the context of the likely impact from a weaker UK. In part, it seems to have reflected the pricing in of very negative scenarios in the Eurozone. But investors may also be worrying about other global problems glossed over in recent months. One risk to our forecast is that confidence effects on businesses and consumers are larger than we expect – but such effects are often overstated. Another danger is that more of the recent financial market weakness will ‘stick’ than our new baseline forecasts assume. Our world recession indicator is already at elevated levels and suggests a significant danger of world growth slipping below 2% this year; not a recession, but it might feel like one. Global policymakers need to act quickly to head off the risks.