Lack of Credibility, Inflation Persistence and Disinflation in Colombia

This paper measures inflation persistence in Colombia for the period1990-2010 and estimates the implied speed at which agents learn about the central bank’s inflation target. We estimate Erceg and Levin’s (2003) imperfect credibility model using Bayesian techniques and compare the posterior odds of...

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Main Authors: Franz Hamann, Andrés Gonzalez
Format: Article
Language:English
Published: Universidad de los Andes (Bogotá) 2011-06-01
Series:Desarrollo y Sociedad
Subjects:
Online Access:http://economia.uniandes.edu.co/revistadys/67/02_Credibility.pdf
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author Franz Hamann
Andrés Gonzalez
author_facet Franz Hamann
Andrés Gonzalez
author_sort Franz Hamann
collection DOAJ
description This paper measures inflation persistence in Colombia for the period1990-2010 and estimates the implied speed at which agents learn about the central bank’s inflation target. We estimate Erceg and Levin’s (2003) imperfect credibility model using Bayesian techniques and compare the posterior odds of this model against a conventional Neokeynesian model with ad-hoc price indexation. The odds are strongly in favor of the imperfect credibility model, suggesting that lack of credibility on the inflation target is an important source of inflation persistence. We use the model to compute the sacrifice ratio associated to 100 basis points inflation target shocks and find that it is (0.83%) in line with previous estimates for Colombia. We also find that the speed at which agents learn in the model has increased, albeit marginally, since the central bank implemented its inflation targeting strategy. Although during this period macroeconomic volatility has fallen, inflation persistence has remained roughly constant suggesting that, so far, the impact of those credibility gains on inflation persistence has been modest.
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spelling doaj.art-82a9ef2f1dda43acbe6bcf54a0ae72102022-12-21T17:57:27ZengUniversidad de los Andes (Bogotá)Desarrollo y Sociedad0120-35841900-77602011-06-016716198Lack of Credibility, Inflation Persistence and Disinflation in ColombiaFranz HamannAndrés GonzalezThis paper measures inflation persistence in Colombia for the period1990-2010 and estimates the implied speed at which agents learn about the central bank’s inflation target. We estimate Erceg and Levin’s (2003) imperfect credibility model using Bayesian techniques and compare the posterior odds of this model against a conventional Neokeynesian model with ad-hoc price indexation. The odds are strongly in favor of the imperfect credibility model, suggesting that lack of credibility on the inflation target is an important source of inflation persistence. We use the model to compute the sacrifice ratio associated to 100 basis points inflation target shocks and find that it is (0.83%) in line with previous estimates for Colombia. We also find that the speed at which agents learn in the model has increased, albeit marginally, since the central bank implemented its inflation targeting strategy. Although during this period macroeconomic volatility has fallen, inflation persistence has remained roughly constant suggesting that, so far, the impact of those credibility gains on inflation persistence has been modest.http://economia.uniandes.edu.co/revistadys/67/02_Credibility.pdfCredibilityinflationpersistencedisinflation costsColombia.
spellingShingle Franz Hamann
Andrés Gonzalez
Lack of Credibility, Inflation Persistence and Disinflation in Colombia
Desarrollo y Sociedad
Credibility
inflation
persistence
disinflation costs
Colombia.
title Lack of Credibility, Inflation Persistence and Disinflation in Colombia
title_full Lack of Credibility, Inflation Persistence and Disinflation in Colombia
title_fullStr Lack of Credibility, Inflation Persistence and Disinflation in Colombia
title_full_unstemmed Lack of Credibility, Inflation Persistence and Disinflation in Colombia
title_short Lack of Credibility, Inflation Persistence and Disinflation in Colombia
title_sort lack of credibility inflation persistence and disinflation in colombia
topic Credibility
inflation
persistence
disinflation costs
Colombia.
url http://economia.uniandes.edu.co/revistadys/67/02_Credibility.pdf
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