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dc.creatorPérez C.L.spa
dc.creatorArango M.A.spa
dc.creatorHernández J.D.spa
dc.date.accessioned2017-12-19T19:36:49Z
dc.date.available2017-12-19T19:36:49Z
dc.date.created2017spa
dc.identifier.issn7981015spa
dc.identifier.urihttp://hdl.handle.net/11407/4348
dc.description.abstractA study on the Market Efficiency Theory in its weak and semi-strong form, for oil companies listed on the Colombia Stock Exchange is done, considering the effect of WTI in these. The article shows that only profitability series of Ecopetrol can be considered as random walk through a further transformation using the WTI in the model, but in the other assets there is no Market Efficiency in its weak form. Stable models in mean and variance for assets and additional models including the performance of WTI as a variable within models of actions were found, showing signs of market efficiency in its semi-strong form. Since then it is not possible to demonstrate efficiency for all actions, for purposes of this paper concludes that the Colombian market presents anomalies.eng
dc.language.isoporspa
dc.publisherRevista Espaciosspa
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85013790422&partnerID=40&md5=0f9160ac41f5e2a058d4b066261bf919spa
dc.sourceScopusspa
dc.sourcereponame:Repositorio Institucionalspa
dc.sourceinstname:Universidad de Medellínspa
dc.titleEconometric analysis of the Colombian oil sector from the perspective of the market efficiency hypothesis [Análisis econométrico del sector petrolero colombiano desde la perspectiva de la hipótesis de eficiencia de mercado]spa
dc.typeArticlespa
dc.typeinfo:eu-repo/semantics/publishedVersionspa
dc.typeinfo:eu-repo/semantics/articlespa
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessspa
dc.contributor.affiliationPérez, C.L., Universidad de Medellín, Colombiaspa
dc.contributor.affiliationArango, M.A., Universidad de Medellín, Universidad Nacional de Colombia, Colombiaspa
dc.contributor.affiliationHernández, J.D., Universidad Eafit, Colombiaspa
dc.subject.keywordARMA-GARCH modeleng
dc.subject.keywordAsset pricingeng
dc.subject.keywordMarket efficiencyeng
dc.publisher.facultyFacultad de Ingenieríasspa
dc.abstractA study on the Market Efficiency Theory in its weak and semi-strong form, for oil companies listed on the Colombia Stock Exchange is done, considering the effect of WTI in these. The article shows that only profitability series of Ecopetrol can be considered as random walk through a further transformation using the WTI in the model, but in the other assets there is no Market Efficiency in its weak form. Stable models in mean and variance for assets and additional models including the performance of WTI as a variable within models of actions were found, showing signs of market efficiency in its semi-strong form. Since then it is not possible to demonstrate efficiency for all actions, for purposes of this paper concludes that the Colombian market presents anomalies.eng
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dc.creator.affiliationUniversidad de Medellín, Colombiaspa
dc.creator.affiliationUniversidad de Medellín, Universidad Nacional de Colombia, Colombiaspa
dc.creator.affiliationUniversidad Eafit, Colombiaspa
dc.relation.ispartofesEspaciosspa


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