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英文文献：Monetary Policy and Indeterminacy after the 2001 Slump
英文文献作者：Firmin Doko Tchatoka,Nicolas Groshenny,Qazi Haque,Mark Weder
英文文献摘要：
This paper estimates a New Keynesian model of the U.S. economy over the period following the 2001 slump, a period for which the adequacy of monetary policy is intensely debated. To relate to this debate, we consider three alternative empirical inflation indicators in the estimation. When using CPI or PCE, we find support for the view that the Federal Reserve's policy was extra easy and may have led to equilibrium indeterminacy. The interpretation changes when using core PCE and monetary policy appears to have been reasonable and sufficiently active to rule out indeterminacy. We then relax the assumption that inflation in the model is measured by a single indicator. We re-formulate the artificial economy as a factor model where the theory's concept of inflation is the common factor to the three empirical inflation series. We find that CPI and PCE provide better indicators of the latent concept while core PCE is less informative. Again, this procedure cannot dismiss indeterminacy.
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