On average, UK productivity performance in the decades leading up to the financial crisis was quite disappointing. Joining the EU was not to blame. Indeed, EU membership, which was an integral part of the Thatcher reform programme, had a significant positive impact. Over the long run, UK supply-side policies have been badly designed in various different ways. These design faults have not been the result of constraints imposed by EU membership but rather the consequence of domestic government failure. There is no reason to think that EU exit will lead, either directly or indirectly, to improvements in UK productivity outcomes.

This paper reviews UK supply-side policies since 2010 in terms of their impact on growth and considers medium-term growth prospects in the context of the puzzle of disappointing post-crisis TFP performance. It is argued that there is no reason to believe that growth prospects have deteriorated significantly compared with the pre-crisis period. Changes in policy under the Coalition government are unlikely to have made a big difference to growth potential. On the one hand, this means opportunities for radical reform have been ignored; on the other hand, there has been no repeat of the 1930s’ debacle.