The Possible Unemployment Cost of Average Inflation below a Credible Target
If inflation expectations become firmly anchored at the inflation target even when average inflation deviates from the target, the long-run Phillips curve becomes non-vertical. During 1997-2011, average inflation expectations in Sweden have been close to the inflation target of 2 percent, whereas average inflation has fallen short of the target by 0.6 percentage points. The estimates reported suggest that the slope of the long-run Phillips curve is about 0.75. Then the average unemployment rate has been about 0.8 percentage points higher than if average inflation had been on target. This is a large unemployment cost of undershooting the inflation target.
Published Versions
The Possible Unemployment Cost of Average Inflation below a Credible Target, Lars E. O. Svensson. in Lessons from the Financial Crisis for Monetary Policy, Gertler. 2015
Lars E. O. Svensson, 2015. "The Possible Unemployment Cost of Average Inflation below a Credible Target," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(1), pages 258-96, January. citation courtesy of 
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