Presno, María José and Landajo, Manuel and Fernández, Paula (2012): Non-renewable resource prices. A robust evaluation from the stationarity perspective.
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The bulk of the literature investigating persistence properties of non-renewable resource prices series has focused on application of unit root tests. This paper contributes to the debate, applying a methodology which allows (1) robust detection of the presence and (if so) the number of changes, (2) inference on stationarity of the series, and (3) estimation of change locations. In contrast to previous papers, the analysis is carried out from the perspective of stationarity testing, incorporating quadratic trends and the possibility of smooth changes. For a classical database, we find significant evidence of trend stationarity in most of the series, suggesting that shocks are mostly of a transitory nature. Exceptions are silver and natural gas, with stationarity being rejected for all the specifications considered in the paper. Finally, the knowledge of the stochastic characteristics of the series allows robust detection of change points which appear to be related to economic events.
|Item Type:||MPRA Paper|
|Original Title:||Non-renewable resource prices. A robust evaluation from the stationarity perspective|
|English Title:||Non-renewable resource prices. A robust evaluation from the stationarity perspective|
|Keywords:||non-renewable resource prices, structural changes, stationarity test, sequential procedure|
|Subjects:||Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q3 - Nonrenewable Resources and Conservation > Q31 - Demand and Supply ; Prices
C - Mathematical and Quantitative Methods > C1 - Econometric and Statistical Methods and Methodology: General > C12 - Hypothesis Testing: General
|Depositing User:||María José Presno|
|Date Deposited:||11. Nov 2012 07:38|
|Last Modified:||15. Feb 2013 09:06|
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