I followed the link but in order to see how Bloomberg came to its conclusion, I would have to subscribe. UK GDP growth has been lower than the EU as a whole since January 2017 although the gap closed markedly in 2019 as EU growth weakened. How far this difference can be confidently ascribed to the possibility of the UK leaving the EU after the Referendum is still a question for me. Weak though UK growth was, it still outperformed Italy throughout this period and UK growth was higher than Germany during 2019 when it broadly matched France. Like Goldman Sachs, Bloomberg recognises the likelihood of a 'Boris bounce' in 2020 but suspects it will not continue. If the bounce happens, and extends beyond 2020, it will be interesting to see if Bloomberg's recent conclusions are revisited and revised.