British companies are increasingly concerned that Brexit will hit sales and raise costs, according to a survey backed by the Bank of England. Tracking the views of chief executives and chief financial officers across 2,500 non-financial companies every month, the survey by Nottingham and Stanford universities has been collecting data for a year and has just produced its first results. ... Professor Nick Bloom of Stanford University, California, said the UK's productivity might be hit, since productivity growth had been stronger in areas where business investment sentiment was weakest.

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