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This paper analyses the existence of insider trading before a takeover announcement through the changes in spread. Accordingly with the microstructure models that assume the existence of informational asymmetries among investors, the possibility of trading with insiders is a reason why market...
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Se evalúa el rendimiento ex-dividendo en acciones colombianas entre 1999 y 2007, periodo que incluye la conformación en julio de 2001 de la Bolsa de Valores de Colombia, resultado de la integración de tres bolsas previamente existentes. Contrario a la hipótesis de eficiencia de mercado, se...
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