A Nonlinear Approach to Tunisian Inflation Rate

In this study, we investigated the properties and the macroeconomic performance of the nonlinearity of the Inflation Rate Set in Tunisia. We developed an inference asymptotic theory for an unrestricted two-regime threshold autoregressive (TAR) model with an autoregressive unit root. We proposed two...

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Main Authors: Thouraya Boujelbène Dammak, Kamel Helali
Format: Article
Language:English
Published: Editura ASE Bucuresti 2016-09-01
Series:Romanian Economic Journal
Subjects:
Online Access:http://www.rejournal.eu/article/nonlinear-approach-tunisian-inflation-rate
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author Thouraya Boujelbène Dammak
Kamel Helali
author_facet Thouraya Boujelbène Dammak
Kamel Helali
author_sort Thouraya Boujelbène Dammak
collection DOAJ
description In this study, we investigated the properties and the macroeconomic performance of the nonlinearity of the Inflation Rate Set in Tunisia. We developed an inference asymptotic theory for an unrestricted two-regime threshold autoregressive (TAR) model with an autoregressive unit root. We proposed two types of tests namely asymptotic and bootstrap-based. These tests as well as the distribution theory allow a joint consideration of nonlinear thresholds and non-stationary unit roots. Our empirical results reveal a strong evidence of a threshold effect. This makes clear the possibility of non stationary and nonlinear of the Monthly Inflation Rate in Tunisia for the 1994.01-2011.06 period. While the Perron test found a unit root, our TAR unit root tests are arguably significant. Then, the evidence is quite strong that the inflation rate is not a unit root process.
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spelling doaj.art-8c7eb35d73374c6b941d12c1a66545012022-12-22T00:58:28ZengEditura ASE BucurestiRomanian Economic Journal1454-42962286-20562016-09-01XIX61147164A Nonlinear Approach to Tunisian Inflation RateThouraya Boujelbène Dammak Kamel Helali In this study, we investigated the properties and the macroeconomic performance of the nonlinearity of the Inflation Rate Set in Tunisia. We developed an inference asymptotic theory for an unrestricted two-regime threshold autoregressive (TAR) model with an autoregressive unit root. We proposed two types of tests namely asymptotic and bootstrap-based. These tests as well as the distribution theory allow a joint consideration of nonlinear thresholds and non-stationary unit roots. Our empirical results reveal a strong evidence of a threshold effect. This makes clear the possibility of non stationary and nonlinear of the Monthly Inflation Rate in Tunisia for the 1994.01-2011.06 period. While the Perron test found a unit root, our TAR unit root tests are arguably significant. Then, the evidence is quite strong that the inflation rate is not a unit root process.http://www.rejournal.eu/article/nonlinear-approach-tunisian-inflation-rateTAR modelsThresholdsnonlinear time series; nonstationaryInflation Rate
spellingShingle Thouraya Boujelbène Dammak
Kamel Helali
A Nonlinear Approach to Tunisian Inflation Rate
Romanian Economic Journal
TAR models
Thresholds
nonlinear time series; nonstationary
Inflation Rate
title A Nonlinear Approach to Tunisian Inflation Rate
title_full A Nonlinear Approach to Tunisian Inflation Rate
title_fullStr A Nonlinear Approach to Tunisian Inflation Rate
title_full_unstemmed A Nonlinear Approach to Tunisian Inflation Rate
title_short A Nonlinear Approach to Tunisian Inflation Rate
title_sort nonlinear approach to tunisian inflation rate
topic TAR models
Thresholds
nonlinear time series; nonstationary
Inflation Rate
url http://www.rejournal.eu/article/nonlinear-approach-tunisian-inflation-rate
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