The impact of EU membership on British growth performance both past and future is somewhat controversial. In this video, Nicholas Crafts (Warwick) gives his assessment of the evidence. He suggests that the UK’s entry into the EU in the 1970s had strong positive effects in particular because it addressed issues of weak competition but that Brexit now would lower the income level through adverse effects on trade without addressing any of the 21st-century supply-side problems that hold UK growth back. This video was recorded in June 2016 during the “Economics of the UK-EU Relationship” workshop at Brunel University London.