From The Hill
Weak inflation is one of the “major challenges” of our time, according to Federal Reserve Chairman Jerome Powell. Not only does persistently low inflation limit the scope of monetary policy, it may also have a damaging impact on the financial system. But the inflation forecasts used by the Federal Reserve to set monetary policy have not been performing very well lately. When the global financial crisis erupted in 2008 and growth collapsed around the world, why did inflation not fall further? As growth has picked up in the United States and unemployment has gone down, why has the inflation rate in this country remained so stubbornly low?
One key to the puzzle may be the forecasts themselves. The frameworks that macroeconomists have relied on to predict inflation primarily use domestic variables dating back to the “Phillips Curve” of the late 1960s which showed that inflation increases when unemployment falls. But the forces that drive our economy are not only confined within our national borders. The models miss what is happening across the rest of the world.