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Journal articles

A smooth transition long-memory model

Abstract : This paper proposes a new fractional model with a time-varying long-memory parameter. The latter evolves nonlinearly according to a transition variable through a logistic function. We present an LR-Based test that allows to discriminate between the standard fractional model and our model. We further apply a nonlinear least squares estimation method to estimate the long-memory parameter. We present an application to the unemployment rate in the United States from 1948 to 2012.
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Contributor : Elisabeth Lhuillier Connect in order to contact the contributor
Submitted on : Wednesday, March 29, 2017 - 5:32:49 PM
Last modification on : Thursday, November 4, 2021 - 11:58:07 AM

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Marcel Aloy, Gilles Dufrénot, Charles Lai-Tong, Anne Peguin-Feissolle. A smooth transition long-memory model. Studies in Nonlinear Dynamics and Econometrics, MIT Press, 2013, 17 (3), pp.281--296. ⟨10.1515/snde-2012-0042⟩. ⟨hal-01498270⟩



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