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Efectos de “ángeles caídos” en el mercado accionario colombiano: estudio de eventos del caso Interbolsa

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  • José E. Gómez-González
  • Luis Fernando Melo Velandia

Abstract

En este documento realizamos un estudio de eventos para estudiar los efectos del anuncio de problemas de liquidez y toma de posesión por parte de la Superintendencia Financiera de Colombia de la firma comisionista de bolsa Interbolsa S.A. en noviembre de 2012 sobre el rendimiento de las acciones transadas en la Bolsa de Valores de Colombia. Utilizamos datos diarios y diferentes ventanas de tiempo para el evento, y estimamos los retornos usando tres modelos alternativos (CAPM, CAPM con tasa libre de riesgo y modelo de tres factores) en los que modelamos la varianza condicional usando un modelo EGARCH (1,1). En general, encontramos que el evento afectó significativamente los rendimientos de las firmas listadas en la Bolsa en todos los modelos y para todas las ventanas de tiempo utilizadas.

Suggested Citation

  • José E. Gómez-González & Luis Fernando Melo Velandia, 2013. "Efectos de “ángeles caídos” en el mercado accionario colombiano: estudio de eventos del caso Interbolsa," Borradores de Economia 779, Banco de la Republica de Colombia.
  • Handle: RePEc:bdr:borrec:779
    DOI: 10.32468/be.779
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    Cited by:

    1. López Gaviria, José Ignacio, 2019. "Predictibilidad del mercado accionario colombiano," Revista Lecturas de Economía, Universidad de Antioquia - CIE, issue 91, pages 117-150, July.

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    More about this item

    Keywords

    Estudio de eventos; Bolsa de valores; Comisionista de bolsa.;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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