What would a no-deal Brexit mean for immigration?

The Economist is running a series of articles on the potential impact of a no-deal Brexit on everything from trade to the economy, cars to universities, the island of Ireland to retailing. This piece looks at immigration.

IMMIGRATION WAS one of the most emotive, most contentious issues of the Brexit referendum campaign in 2016. Theresa May, the prime minister, interpreted the Leave vote primarily as a protest against the free movement of EU citizens—a fundamental principle of the bloc—and since then has repeatedly promised to end it.