Examinando por Materia "Estudio de eventos"

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    Ítem
    Efecto de los anuncios de intervención por parte del gobierno para la contención de la pandemia Covid-19 sobre los rendimientos de las acciones colombianas
    (Universidad EAFIT, 2021) Rebolledo Carvajal, Manuela; Gaviria Ruiz, Susana; Torres García, Alejandro
    The covid-19 outbreak came as shock for governments all around the world and consequently brought with it a wave of uncertainty because of the unprecedented event that was happening. This study aims to determine through the Event Study Methodology, whether the actions taken by the Colombian government in order to take action over the possible effects of the pandemic generated statistically significant impacts on 9 selected stocks belonging to the Colombian Stock Exchange, verifying in turn the hypothesis of market efficiency. For its verification, different types of announcements were considered. Such as international news regarding the evolution of the pandemic, national emergency declarations, as well as announcements of economic reactivation. In general, we can conclude that the announcement of national relevance was those that generated the highest significant abnormal returns and that the Colombian stock market presents medium efficiency since there was no uniform an immediate reaction to all of the events.
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    Ítem
    Estos eventos afectan los precios de las acciones de las grandes empresas
    (Universidad EAFIT, 2020-12-01) Martinez Guerrero, Christian Alexander; Martinez-Guerrero, Christian Alexander; Restrepo Ochoa, Diana Constanza; Peña, Juan Ignacio; Finanzas y Banca
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    Ítem
    Ofertas públicas de adquisición al Grupo Empresarial Antioqueño y su impacto en el mercado accionario y de renta fija colombiano
    (Universidad EAFIT, 2023) Naveros Sánchez, Andrés; Correa Sepúlveda, Angie Paola; Téllez Falla, Diego Fernando; Gaitán Riaño, Sandra Constanza
    This paper used the event study methodology to estimate the impact of the takeover bids over Grupo Empresarial Antioqueño since November 2021 on the Colombian stock and fixed income market returns. For this purpose, data associated with the dividend-adjusted prices of 22 stocks that make up the Colombian stock market and the coupon-adjusted quotes of the short-term COLTES index were used. The results obtained suggested that there is statistical evidence that the takeover bids studied had a significant impact on stock returns, characterized by a positive effect during the days before and after the awarding of the offers. Meanwhile, for the Colombian fixed income market, a negative impact was observed during the previous days. In both cases, the results indicated that the effect of takeovers bids on returns was greater in the short term.