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                <text>Agricultura sostenible</text>
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                <text>Dominio científico: Agricultura sostenible</text>
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              <text>Tasa de descuento ambiental Gamma: una aplicación para Colombia</text>
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              <text>Francisco Correa</text>
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              <text>Este artículo tiene como objetivo central describir y aplicar una metodología para estimar la tasa de descuento en proyectos de largo plazo para Colombia, como son los proyectos relacionados con la conservación ambiental y el cambio climático global. La metodología aplicada es conocida como el descuento gamma. Para la aplicación de este método se realizó una encuesta a 120 economistas de Colombia, de esta forma se obtuvo una tasa descuento mucho menor que la tasa social de descuento usualmente utilizada en la evaluación económica de proyectos de largo plazo en el país. Adicionalmente, las estimaciones realizadas permiten verificar la declinación en el tiempo de dicha tasa de descuento.  Palabras clave: descuento, preferencias intertemporales, impactos ambientales, análisis costo-beneficio, incertidumbre. Clasificación JEL: B41, D91, Q51   Abstract:   The main purpose of this article is to describe and apply a methodology to estimate the discount rate on long-term projects, such as those related to environmental conservation and global climate change, for Colombia. The applied methodology is known as gamma discount. For the application of this method, a survey of 120 Colombian economists was conducted. This yielded a much smaller discount rate than the social rate of discount typically used in the economic evaluation of domestic long-term projects. Additionally, the obtained estimations allow verifying the decline in time of such a discount rate.  Keywords: discount rate, intertemporal preferences, environmental impacts, cost-benefit analysis, uncertainty. JEL Classification: B41, D91, Q51   Résumé :   Cet article présente une méthodologie permettant d.estimer le taux d.actualisation dans la valorisation des projets de long terme pour la Colombie, notamment les projets associés à la préservation de l.environnement et le changement climatique. La méthodologie que nous appliquons est connue comme l.escompte gamma. Pour ce faire, nous avons fait un sondage auprès de 120 économistes de Colombie, ce qui nous a permit d.établir un taux d.escompte beaucoup plus petit que le taux social d.escompte traditionnellement utilisé dans l'évaluation économique des projets de long terme dans le pays. En plus, les estimations effectuées permettent de vérifier la chute de ce taux d.escompte dans le temps.  Mots Clef: taux d.escompte, préférences intertemporelles, impacts environnementaux, analyse coût bénéfice, incertitude. Classification JEL: B41, D91, Q51   </text>
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              <text>2009</text>
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              <text>10.17533/udea.le.n69a739</text>
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              <text>Lecturas de Economía</text>
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              <text>Universidad de Antioquia</text>
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              <text>Economics as a science, Economic history and conditions</text>
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              <text>&lt;a href="https://revistas.udea.edu.co/index.php/lecturasdeeconomia/article/view/739" target="_blank" rel="noreferrer noopener"&gt;https://revistas.udea.edu.co/index.php/lecturasdeeconomia/article/view/739&lt;/a&gt;</text>
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