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

Authors: Luis Fernando Melo-Velandia; José Eduardo Gómez-González;

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

Abstract

En este documento realizamos un estudio de eventos para estudiar los efectos del anuncio de problemas de liquidez y toma de posesion 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 afecto significativamente los rendimientos de las firmas listadas en la Bolsa en todos los modelos y para todas las ventanas de tiempo utilizadas.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average