A great deal of attention has been devoted to the consequences of different forms of post-Brexit trade policy for UK exports. But focusing on the gross value of UK exports – e.g. the decline in exports of completed cars as the cost of exporting to the EU rises – is only part of the story because it misses the effects on the sectors and other countries that supply inputs into UK goods. In this Briefing Paper, the authors unpack value chains to identify which sectors and countries create the value that is embodied in UK flows of exports and imports, and hence to identify how the changes in trade induced by a ‘No deal’ Brexit will affect the value contributed (i.e. the incomes generated) by different sectors and countries.

Studying only the effects of ‘No deal’ on the costs of conducting goods trade, but following them throughout the British economy, the authors find that ‘No deal’ could reduce UK GDP by 4% relative to remain. Moreover, because of the decline in incomes and the fact that services are key inputs into manufactured exports, the incomes generated in services sectors would also be around 4% smaller.

Read Briefing Paper 35 – BREXIT AND GLOBAL VALUE CHAINS: ‘NO-DEAL’ IS STILL COSTLY