An Identification-Robust Test for Time-Varying Parameters in the Dynamics of Energy Prices

Marie-Claude Beaulieu, Jean-Marie Dufour (), Lynda Khalaf and Maral Kichian

CIRANO Working Papers from CIRANO

Abstract: We test for the presence of time-varying parameters (TVP) in the long-run dynamics of energy prices for oil, natural gas and coal, within a standard class of mean-reverting models. We also propose residual-based diagnostic tests and examine out-of-sample forecasts. In-sample LR tests support the TVP model for coal and gas but not for oil, though companion diagnostics suggest that the model is too restrictive to conclusively fit the data. Out-of-sample analysis suggests a randomwalk specification for oil price, and TVP models for both real-time forecasting in the case of gas and long-run forecasting in the case of coal

Keywords: structural change; time-varying parameter; energy prices; coal; gas; crude oil; unidentified nuisance parameter; exact test; Monte Carlo test; Kalman filter; normality test (search for similar items in EconPapers)
JEL-codes: C22 C52 C53 Q40 (search for similar items in EconPapers)
Date: 2011-02-01
New Economics Papers: this item is included in nep-ecm, nep-ene and nep-for
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:cir:cirwor:2011s-22

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