The rouble's slide

As an effective free float of the rouble drives the currency to all-time lows, Delphine Strauss, currencies correspondent, is joined by Tom Levinson, strategist at Sberbank CIB, to discuss the change in policy. Will Russia's central bank step in to defend the rouble; does it have further to fall before it finds a new level; and what are the implications for currencies of central and eastern European neighbours?

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