A look back at the biggest economic and business events of the year.
We ask how a tumbling rouble is affecting prices in the country.
The latest business and finance news from around the world, on the BBC.
Saudi Arabia, the cartel's largest member, says it won't try to push oil prices higher.
But could Sony have done more to beef up its cyber security?
Could Sony have done more to beef up its cybersecurity?
Nigeria's currency falls to record lows against the dollar.