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Air pollution and the willingness to pay of exposed individuals in downtown Medellín, Colombia

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  • Gaviria, Carlos Felipe
  • Martínez, Daniel

Abstract

Air Pollution and the Willingness to Pay of Exposed Individuals in Downtown Medellín, Colombia Abstract: Within Colombia, Medellín holds the title of the city with the second worst air quality, and within the city, Downtown Medellín is one of the areas most affected by mobile gas emissions. Individuals that work downtown were surveyed in order to measure their willingness to pay (WTP) to reduce air pollution. Four groups are characterized according to the respondents' answers: Stated Preference (SP), Averted Costs (AV), both (SP and AV), and No WTP. Results show that age, income level, having a symptom/illness, and exposure to pollution(at different levels) are important for characterizing the respondents into these groups and have a direct effect on the probability of them stating a positive WTP. Resumen: En Colombia, Medellín ostenta el título de ser la segunda ciudad con la peor calidad de aire, y dentro de la ciudad el centro es considerado una de las zonas con mayor emisión de contaminación por fuentes móviles. Teniendo en cuenta este hecho, se entrevistaron a las personas que trabajan en esta zona con el fin de caracterizar su disposición a pagar por reducir la contaminación del aire. Se identificaron cuatro grupos de individuos a partir de las respuestas obtenidas: individuos con preferencias establecidas (SP), con costos evitados (AV), con ambos (SP y AV) e individuos sin disposición a pagar (No WTP). Los resultados muestran que la edad, el nivel de ingresos, presentar un síntoma o enfermedad y la exposición a la contaminación (en diferentes niveles) son características importantes para determinar a cuál de los grupos pueden pertenecer los individuos y, a su vez, afecta la probabilidad de responder una disposición a pagar positiva.

Suggested Citation

  • Gaviria, Carlos Felipe & Martínez, Daniel, 2013. "Air pollution and the willingness to pay of exposed individuals in downtown Medellín, Colombia," Revista Lecturas de Economía, Universidad de Antioquia, CIE, issue 80, pages 153-182, July.
    • Handle: RePEc:col:000174:014727
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    References listed on IDEAS

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    More about this item

    Keywords

    Contaminación del aire; Valoración contingente; Disposición a pagar; Medellín;
    All these keywords.

    JEL classification:

    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
    • Q51 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Valuation of Environmental Effects
    • Q59 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Other

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