It is easy to see what a messy, bad Brexit looks like. The UK gets shut out of a huge market. Inward investment gets put on hold amid months of uncertainty. The trade deficit starts to blow out, the pound keeps sinking, and joblessness rises as the economy tanks. But what does a good Brexit look like? Here are six key demands business should make of new prime minister as he or she negotiates with Brussels, Berlin and Paris.

First, don't obsess about access to the Europe market. In the first instance, Britain should go for the Norwegian model, with full access to the single market, in return for accepting most of its rules, and paying a more modest financial contribution to Brussels. But if Angela Merkel and François Hollande want to be difficult about that, then forget it. Our trade with the EU has been sinking like a stone for the last decade - down from 55pc of our exports to 44pc over the last 10 years. The very worst that can happen is the EU imposes tariffs of roughly 4pc on our goods. But since the pound has just devalued by around 8pc, companies exporting to Europe can easily absorb that and still cut prices. The most important move is to get the new trading arrangement sorted quickly and to start focusing on the rest of the world.