Are you being served? Not after Brexit

The British government’s post-Brexit customs proposals, published last week, are little short of bizarre. Unilateral decisions on a tariff regime fall some distance outside international trading conventions.

If the proposals were ever implemented, Britain could wave goodbye to any prospect of new trade deals with other countries post-Brexit. While one of the great promised advantages of Brexit was a new British capacity to strike its own trade deals, no established economy will agree ...