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 United Kingdom will depart from the European Union in March 2019. Numerous open questions remain about details and conditions especially with regard to post-Brexit EU-UK trade relations. In case of a negotiation failure, a "hard Brexit" could cause considerably high costs on both sides of...