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[...] The leading motivation for Leave voters was reducing immigration while Remain voters prioritised the economy. This hasn’t changed. According to my YouGov/Birkbeck/Policy Exchange survey data, two-thirds of British people want less immigration, including 47 percent of Remainers and over 91 percent of Leavers.
Hard Brexit is a good way to bring numbers down. However, some suggest that when Theresa May triggers Article 50, the EU will drive a hard bargain, inflicting pain on the British economy. Witheconomistsclaiming entry to the single market is worth 4 percent of GDP by 2030, I asked how much the average Briton is willing to sacrifice to reduce European immigration in the event the doomsayers are right. The final deal between Britain and the EU over leaving will hinge on how much economic pain, in the form of reduced market access, Britain is prepared to absorb to restrict European immigration.
The survey, carried out by the polling firm YouGov, asked a sample of over 1500 people the following question: “Roughly 185,000 more people entered Britain last year from the EU than went the other way. Imagine there was a cost to reduce the inflow. How much would you be willing to pay to reduce the number of Europeans entering Britain?” [...]
Among those surveyed, and excluding those who didn’t know, 62 percent said they were unwilling to pay anything to reduce numbers, and would accept current levels of European immigration.
As figure 2 shows, even among those who said they voted to leave the European Union, 30 percent reported they would prefer the current inflow of 185,000 to paying any of their income to cut the inflow. In other words, there is a significant ‘soft’ component within the Leave vote.
On the other hand, there is a considerable core of Brexit voters willing to tighten their belts to reduce migration: over a third of Leave voters indicated they would contribute 5 percent of their income to cut European migration to zero. More than half of Brexiteers are willing to pay at least 3 percent of their income to reduce European net migration from the current 185,000 to under 80,000. The average person who voted Conservative in the 2015 General Election is willing to stump up 2.5 percent of their pay packet to reduce European immigration to half its current level.
This means that if the costs of Brexit mount in line with pessimistic predictions, most British people favour a deal that preserves market access even if this results in only limited reductions in European immigration. May’s Conservative voters will put up with more pain, but not if it costs more than 2 percent of GDP. This suggests a deal between Theresa May and her EU interlocutors based on significant market access in exchange for limited migration controls may be acceptable to the 45 per cent of voters who currently back her party. It certainly will pass muster with a majority of the electorate. [...]