For a world economy coming to terms with a soaring dollar and a plunge in oil prices, this week will be all about the U.S. Federal Reserve’s policy meeting and its intentions on interest rates. A combination of the European Central Bank printing lots of euros and expectations of a first U.S. rate rise has caused turmoil on the foreign exchanges and in emerging markets. After successive months of strong jobs data, expectations have been growing that the Fed will point towards a June rate rise by dropping a pledge to be “patient” in considering such a move.