By Reuters Staff 7 Min Read LONDON (Reuters) - The Bank of Canada set the taper ball rolling last week, becoming the first major central bank to cut back on pandemic-era money-printing stimulus programmes. So who’s next? FILE PHOTO: A sign is pictured outside the Bank of Canada building in Ottawa, Ontario, Canada, May 23, 2017. REUTERS/Chris Wattie The big guns of central banking - the U.S. Federal Reserve, European Central Bank and the Bank of Japan - won’t officially pare stimulus for a while, a message the BOJ reinforced on Tuesday and one the Fed is expected to reiterate on Wednesday.