Volume 16, Issue 3 June 2020

Positive Trend Inflation and Determinacy in a Medium-Sized New Keynesian Model

Abstract

This paper studies the challenge that increasing the inflation target poses to equilibrium determinacy in a mediumsized New Keynesian model without indexation fitted to the Great Moderation era. For moderate targets of the inflation rate, such as 2 or 4 percent, the probability of determinacy is near one conditional on the monetary policy rule of the estimated model. However, this probability drops significantly conditional on model-free estimates of the monetary policy rule based on real-time data. The difference is driven by the larger response of the federal funds rate to the output gap associated with the latter estimates.

Authors

  • Jonas E. Arias
  • Guido Ascari
  • Nicola Branzoli
  • Efrem Castelnuovo

JEL codes

  • E52
  • E3
  • C22