Angela Merkel warned fellow world leaders on Thursday not to make the fight against global imbalances the central issue of a meeting of the world’s 20 largest economies, which kicks off in Pittsburgh on Thursday night.

Speaking in Berlin before boarding her flight, Ms Merkel came close to accusing the US and Britain of backtracking on the issues of financial market regulation and global limits on bonuses for bankers by shining the spotlight on the export-oriented economic policies of Germany and China.