With the world economy heading into its strongest period since 2011, Citigroup and JPMorgan Chase & Co. predict average interest rates across advanced economies will climb to at least 1% next year in what would be the largest increase since 2006. Meanwhile, Bloomberg Economics predicts net asset purchases by the main central banks will fall to a monthly $18 billion at the end of 2018, from $126 billion in September, and turn negative during the first half of 2019. Read the original story from Bloomberg.