OVER a year has passed since Britons voted to leave the European Union. More than three months have gone by since Britain gave formal notice to quit. Less than 21 months remain until March 29th 2019, the scheduled date of Brexit. Yet banks, insurers, asset managers and other financial firms that use London as a base from which to serve the entire EU are little wiser than they were on referendum day about what Brexit will entail. They must plan for it nonetheless.
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