Yen, Swiss franc slip as Brexit fears abate

London

THE safe-haven yen and Swiss franc lost ground on Wednesday as concerns over Britain's referendum on its EU membership abated briefly, while most investors stayed on the sidelines before a Federal Reserve policy decision later in the day.

A poll gave Britain's "Remain" camp a marginal lead ahead of the June 23 referendum on whether to remain in the European Union or leave, although the issue is almost c…