The surge in energy prices as war engulfs the Middle East is top of mind for central bankers. Deciding what to do about ​it is proving more complicated. On Tuesday, the Reserve Bank of Australia became the first major central bank ‌to hike since the start of the Iran conflict, lifting benchmark interest rates by 25 basis points to 4.1% and warning that sharply higher fuel prices will add to inflation if they are sustained. But an unexpectedly close vote that saw four dissents sent the Aussie dollar ​skidding afterwards.[....]