Ensaios em Macroeconomia: incerteza econômica e mercado

Abstract

In the last two decades, we have witnessed a strong digitization of documents, resulting in a vast amount of textual data. These unstructured data open up new research opportunities, especially in sentiment analysis using textual dictionaries. However, the fact that many dictionaries are in English can be a limitation due to the cost or time required for translation. To overcome this barrier, this essay proposes the creation of an economic uncertainty dictionary entirely in Portuguese. This dictionary aims to fill this gap, allowing for sentiment extraction from Portuguese texts. Details of its construction, validation, and efficacy tests are presented in this chapter.