Decomposing the output gap with inflation learning

Irina Panovska and Srikanth Ramamurthy

Journal of Economic Dynamics and Control, 2022, vol. 136, issue C

Abstract: We incorporate adaptive learning-based inflation expectations in an Unobserved Components model in order to study the link between inflation and the output gap. A modification of the hybrid New Keynesian Phillips curve serves as the backbone for modeling inflation dynamics. The resulting output gap from our model has a lower amplitude than gaps obtained using proxy measures of expectations and other commonly used measures of the cycle. This result is robust across different subsamples as well as for alternative measures of inflation, nor is it driven by a breakdown in the Phillips curve. In fact, we find evidence in favor of a relatively flat but significant Phillips curve relationship. In addition, we find that learning based inflation forecasts not only shadow survey expectations in the pre-Volcker era, they also track inflation closely during the financial crisis and do not exhibit persistent overshooting. Furthermore, our results indicate that several recessions, including the Great Recession, were at least partially driven by large drops in the trend component of output.

Keywords: Adaptive learning; Restricted perceptions equilibrium; Output gap; Inflation; Unobserved components model (search for similar items in EconPapers)
JEL-codes: C32 E31 E32 E50 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:dyncon:v:136:y:2022:i:c:s016518892200032x

DOI: 10.1016/j.jedc.2022.104327

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