The main point of my 1999 book with Jeff Williamson was that globalisation produces both winners and losers, and that this can lead to an anti-globalisation backlash. We argued this based on late 19th century evidence, but opinion poll evidence (citations here) suggested that something similar was at work in the late 20th century as well, a hunch confirmed in the early 21st century by the 2005 and 2008 French and Irish referenda.
What was missing from all this was an analysis of what, if anything, governments can do about this. Which is where Dani Rodrik’s finding that more open states had bigger governments in the late 20th century comes in. Dani’s interpretation is that markets expose workers to risk, and that government expenditure of various sorts can help protect them from those risks. In a series of articles, and an important book, Michael Huberman showed that this correlation between states and markets was present before 1914 as well: countries with more liberal trade policies tended to have more advanced social protections of various sorts, and this helped maintain political support for openness.
Anti-immigration sentiment was clearly crucial in delivering an anti-EU vote in England. And if you talk to ordinary people, it seems clear that competition for scarce public housing and other public services was one important factor behind this. If the Tories had really wanted to maintain support for the EU, investment in public services and public housing would have been the way to do it: if these had been elastically supplied, that would have muted the impression that there was a zero-sum competition between natives and immigrants. It wouldn’t have satisfied the xenophobes, but not all anti-immigrant voters are xenophobes. But of course the Tories were never going to do that, at least not with Osborne at the helm.
If the English want continued Single Market access, they will have to swallow continued labor mobility. There are complementary domestic policies that could help in making that politically feasible. We will have to wait and see what the English decide. But there are also lessons for the 27 remaining EU states. Too much market and too little state invites a backlash. Take the politics into account, and it becomes clear (as Dani has often argued) that markets and states are complements, not substitutes.