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The Central Bank of Brazil (BCB) offers access to the SGS system (sistema gerenciador de series temporais) with a official API …

BatchGetSymbols is my most downloaded package by any count. Computation time, however, has always been an issue. While downloading data …

In the last few weeks we’ve seen a great deal of controversy in Brazil regarding financial investments. Too keep it short, Empiricus, …

I received many messages regarding my book promotion (see previous post ). I’ll use this post to answer the most frequent questions: …

I recently did a book promotion for my R book in portuguese and it was a big sucess! My english book is now being sold with the same …

Skills

R

100%

Finance

100%

Tennis

110%

Experience

 
 
 
 
 
March 2018 – Present
Porto Alegre

Associate Professor

UFRGS

Teacher and Researcher
 
 
 
 
 
March 2011 – March 2018
Porto Alegre

Assistant Professor

UFRGS

Teacher and Researcher
 
 
 
 
 
March 2009 – January 2010
London/UK

Assistant Researcher (PhD Internship)

Bank of England

 
 
 
 
 
January 2008 – January 2009
Reading/UK

Teaching Assistant

Reading University

Assisted lecturer in Finance

Selected Publications

Using a database of potential, possible, or probable predatory scholarly open-access journals, the objective of this research is to study the penetration of predatory publications in the Brazilian academic system and the profile of authors in a cross-section empirical study. Based on a massive amount of publications from Brazilian researchers of all disciplines during the 2000 to 2015 period, we were able to analyze the extent of predatory publications using an econometric modeling. Descriptive statistics indicate that predatory publications represent a small overall proportion, but grew exponentially in the last 5 years. Departing from prior studies, our analysis shows that experienced researchers with a high number of non-indexed publications and PhD obtained locally are more likely to publish in predatory journals. Further analysis shows that once a journal regarded as predatory is listed in the local ranking system, the Qualis, it starts to receive more publications than non-predatory ones.
Scientometrics, 2018