Sentiment text index: empirical analysis the impact on systematic risk

The purpose of the study was to estimate textual sentiment index of news and investigate its behavior on systematic risk. For this, it was investigated if the systematic risk of stock price Vale (VALE5) was influenced by the tone and volume of the news related the accident caused by Samarco, in peri...

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Bibliographic Details
Main Authors: Maria Daniella de Oliveira Pereira da Silva, Márcio André Veras Machado
Format: Article
Language:Portuguese
Published: Universidade Federal de Santa Catarina 2019-12-01
Series:Revista Contemporânea de Contabilidade
Subjects:
Online Access:https://periodicos.ufsc.br/index.php/contabilidade/article/view/56558