The EU has pursued protectionist policies not merely in food but also in manufacturing at the customs union level. In services it has not dismantled much of the existing national protectionism. The economic costs are calculated here at some 3% of GDP for the UK and some 4% for the rest of the EU...

The EU protects agriculture and manufacturing through its commercial policies, namely its tariffs, its non-tariff barriers and the Common Agricultural Policy. By leaving the EU the UK would be able to abandon the EU’s protectionist system in favour of free trade combined with transitional...

Recent work has exposed the extent of EU protectionism within the single market Customs Union. If the UK leaves the EU customs union for unilateral free trade, as a small country within the world market, it will therefore make gains according to the standard trade model. Should it do so, trade...