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JPMorgan’s ‘Volfefe Index’ tracks impact of Trump’s tweets

JPMorgan has developed a new way to track the impact of President Trump’s tweets on the bond market. Named the Volfefe Index, it examines how Trump’s comments on Twitter influence the volatility in U.S. interest rates. Yahoo Finance’s Zack Guzman and Heidi Chung discuss with Quartz Tech Editor Mike Murphy.