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APT - evidencia empírica en el análisis del ROA en una empresa de servicios públicos domiciliarios de acueducto y alcantarillado

Author

Listed:
  • Raúl A. Cardona Montoya
  • Ermilson Velásquez Ceballos
  • Tatiana M. Vidal Gutiérrez
  • Raúl A. Escobar Orrego

Abstract

Using methodology developed by ROSS, the Return on Assets - ROA was assessed for a firm of public utilities for water and sewer department of Antioquia. The public utilities sector of water is monopolistic nature and the method of valuation of the cost of capital used to determine the rates of the companies involved in this, is regulated by an agency of Colombia. This paper evaluates a different or complementary alternative to the CAPM method used by the regulator to find the cost of capital that reflects the characteristics of this market in Colombia. For achieving this goal, in this paper the method of principal components is incorporated, reducing 19 observed variables that are classified into various categories: macroeconomic, financial, technical and operating of the company studied. From the data, it was established the results achieved in five components that determine the profitability of the assets of the company analyzed, highlighting the geographical coverage and operational performance. ****** Con la metodología APT desarrollada por ROSS, se evaluó la Rentabilidad del Activo - ROA para una empresa de servicios públicos domiciliarios de acueducto y alcantarillado del departamento antioqueno. El sector de los servicios públicos domiciliarios de aguas es de naturaleza monopólica y el método de valoración del costo de capital empleado para determinar las tarifas de las empresas que participan en éste, se encuentra regulado por un órgano del Estado colombiano. Este trabajo pretende evaluar una alternativa diferente o complementaria al método CAPM empleado por el regulador, para encontrar el costo de capital que refleje las características de este mercado en Colombia. Para lograrlo, en este artículo se incorpora el método de componentes principales como medio de reducción de 19 variables observadas que se agrupan en diversas categorías: macroeconómicas, financieras y técnico operativas de la empresa analizada. A partir de los datos se modelo el ROA, estableciéndose de los resultados alcanzados que cinco componentes determinan la rentabilidad del activo de la empresa analizada, destacándose de ellas la cobertura geográfica y el rendimiento Operativo.

Suggested Citation

  • Raúl A. Cardona Montoya & Ermilson Velásquez Ceballos & Tatiana M. Vidal Gutiérrez & Raúl A. Escobar Orrego, 2014. "APT - evidencia empírica en el análisis del ROA en una empresa de servicios públicos domiciliarios de acueducto y alcantarillado," Documentos de Trabajo de Valor Público 12580, Universidad EAFIT.
  • Handle: RePEc:col:000122:012580
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    More about this item

    Keywords

    Tasa de Descuento; Capital Asset Pricing Model (CAPM); Modelo de Arbitrajede Precios – APT; Rentabilidad del Activo – ROA;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions

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