Notas explicativas explicam? análise da comunicação do gerenciamento de risco a partir de técnicas de text mining

The study aimed to analyze the effectiveness of risk management communication in the explanatory notes considering text mining techniques. Based on the analysis of 241 text excerpts from 32 financial institutions, we used the cosine similarity as a distance measurement to assess the relationship between the variability of the texts and the Basel and Inad 90 risk indices. The results indicate that the analyzed notes are not in compliance with OCPC 07, as their content does not reflect the fluctuation of risk indices. The benefit of the notes for the user in decision-making processes may be impaired, given the evidence of disconnection between the texts and the risk policy. Cases of complete repetition of the text excerpts are presented. As a contribution, this article advances in the textual studies of financial statements, going beyond lexical and volumetric analyses, bringing the semantic content in volume and its relationship with finance indicators.