Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns

This article evaluates the hypothesis that returns of metal prices are unpredictable (i.e under the weak form Efficient Market Hypothesis). The possible effect that financialization in the commodity market has had in the predictability of this is also evaluated. Using statistical techniques such as...

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Main Authors: Lya Paola Sierra, Luis Eduardo Girón, Carolina Osorio
Format: Article
Language:English
Published: EconJournals 2017-07-01
Series:International Journal of Economics and Financial Issues
Online Access:https://econjournals.com/index.php/ijefi/article/view/4695
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author Lya Paola Sierra
Luis Eduardo Girón
Carolina Osorio
author_facet Lya Paola Sierra
Luis Eduardo Girón
Carolina Osorio
author_sort Lya Paola Sierra
collection DOAJ
description This article evaluates the hypothesis that returns of metal prices are unpredictable (i.e under the weak form Efficient Market Hypothesis). The possible effect that financialization in the commodity market has had in the predictability of this is also evaluated. Using statistical techniques such as the portmanteau test, the variance ratio test, and a robustness test on the monthly returns of metals for the 1992-2015 period, it is found that the market of some metals is persistently inefficient whereas others fluctuate between periods of efficiency and inefficiency. There is no clear effect of financialization on the efficiency of the metal market. Keywords: Efficient Markets Hypotheses, metal prices, forecasting. JEL Classifications: C12, E39, F00, G14, Q02
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spelling doaj.art-19405c816d724a5f844c5286d71288b22023-02-15T16:20:15ZengEconJournalsInternational Journal of Economics and Financial Issues2146-41382017-07-0174Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal ReturnsLya Paola Sierra0Luis Eduardo Girón1Carolina Osorio2Associate Professor Pontificia Universidad JaverianaAssistant professor Pontificia Universidad JverianaPontificia Unviversidad Javeriana This article evaluates the hypothesis that returns of metal prices are unpredictable (i.e under the weak form Efficient Market Hypothesis). The possible effect that financialization in the commodity market has had in the predictability of this is also evaluated. Using statistical techniques such as the portmanteau test, the variance ratio test, and a robustness test on the monthly returns of metals for the 1992-2015 period, it is found that the market of some metals is persistently inefficient whereas others fluctuate between periods of efficiency and inefficiency. There is no clear effect of financialization on the efficiency of the metal market. Keywords: Efficient Markets Hypotheses, metal prices, forecasting. JEL Classifications: C12, E39, F00, G14, Q02 https://econjournals.com/index.php/ijefi/article/view/4695
spellingShingle Lya Paola Sierra
Luis Eduardo Girón
Carolina Osorio
Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
International Journal of Economics and Financial Issues
title Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
title_full Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
title_fullStr Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
title_full_unstemmed Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
title_short Has Financialization in Commodity Markets Affected the Predictability in Metal Markets? The Efficient Markets Hypotheses for Metal Returns
title_sort has financialization in commodity markets affected the predictability in metal markets the efficient markets hypotheses for metal returns
url https://econjournals.com/index.php/ijefi/article/view/4695
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