Who killed US inflation? Here are the suspects in Janet Yellen's mystery

Labour-force participation remains depressed relative to its pre-crisis norm

Was it the seamstress in Bangladesh, with her low wages? Or Jeff Bezos, with his low prices?
 
Federal Reserve Chair Janet Yellen has labelled this year’s unexpected inflation slowdown a “mystery,” and there are a few possible suspects.
 
Previously, factors such as labour-market slack, falling fuel costs and cheap imports explained why price gains weren’t headed toward the Fed’s 2 per cent goal. Those explanations no longer hold as much water. Joblessness has dropped to 4.4 per cent, the dollar is falling and energy prices have stabilised. A pricing issue with cell-phone plans earlier in the year no