Jorge Junio Moreira Antunes

Mr. Jorge Junio Moreira Antunes

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
4 May 2023 in Sustainability
Verified
Journal Article
Open access
PDF file
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
PWPeter Wanke
Peter Wanke
TFThiago Fonseca
Thiago Fonseca
Yong TanYong Tan
Yong Tan
Financial distress is a research topic in finance that has attracted attention from academia following past financial crises. Although previous studies associate financial distress with several elements, the relationship between distress and ESG has not been broadly explored. This paper investigates these issues by elaborating a Dynamic Network DEA model to address the underlying connections between accounting and financial indicators. Thus, a model that includes profit and loss, balance sheet, and capital and operating expenditures indicators is demonstrated under the dynamic network structure to compute financial-distress efficiency scores. Then, the impact of carryovers is considered for the accurate calculation of efficiency scores for the three substructures. The influence of contextual variables, such as socioeconomic and macroeconomic variables, and whether the firm owns an ESG Risk Score or not, is assessed through a stochastic non-linear model that combines three distinct regression types: Simplex, Tobit, and Beta. The results indicate that firms that hold an ESG Risk Score are less prone to be in financial distress, and Governance Score is negatively associated with financial distress efficiency.

24 February 2023 in Socio-Economic Planning Sciences
Verified
Journal Article
Closed access
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
YTYong Tan
Yong Tan
PWPeter Wanke
Peter Wanke
CJCharbel Jose Chiappetta Jabbour
Charbel Jose Chiappetta Jabbour

20 September 2021 in Journal of Economic Studies
Verified
Journal Article
Closed access
AMAndrew Maredza
Andrew Maredza
PWPeter Wanke
Peter Wanke
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
RPRoberto Pimenta
Roberto Pimenta
Yong TanYong Tan
Yong Tan
Purpose: This paper investigates the endogenous relationships between banking performance and social welfare in Southern African Development Community (SADC) countries.Design/methodology/approach: A comprehensive three-stage multi-criteria decision-making (MCDM) approach based on alternative informational assumptions is applied.Findings: Results indicate that banking performance is paradoxically associated with stagnant economic activity and higher wealth concentration for the minority. The authors found that SADC banking performance promotes higher Human Development Index (HDI) standards possibly via efficient financial intermediation, dissemination of best managerial practices and other forms of positive spillovers in these countries.Originality/value: This paper contributes to the MCDM literature by simultaneously exploring the key concepts of “utility functions” (using COPRAS) and “distance to ideal solutions” (using TOPSIS) in mapping and explaining the feedback and cause-effect processes between banking performance and social welfare that may exist. Another distinctive aspect is related to the computation of bias-free criteria weights, using a robust SWARA order-rank based on information entropy. Finally, this paper is concerning the endogeneity measurement, using a novel stochastic structural relationship non-linear programme.

4 March 2022 in Entropy
Verified
Journal Article
Open access
PDF file
RNRODRIGO GONÇALVES NOVAIS
RODRIGO GONÇALVES NOVAIS
PWPeter Wanke
Peter Wanke
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
Yong TanYong Tan
Yong Tan
This paper describes a new model for portfolio optimization (PO), using entropy and mutual information instead of variance and covariance as measurements of risk. We also compare the performance in and out of sample of the original Markowitz model against the proposed model and against other state of the art shrinkage methods. It was found that ME (mean-entropy) models do not always outperform their MV (mean-variance) and robust counterparts, although presenting an edge in terms of portfolio diversity measures, especially for portfolio weight entropy. It further shows that when increasing return constraints on portfolio optimization, ME models were more stable overall, showing dampened responses in cumulative returns and Sharpe indexes in comparison to MV and robust methods, but concentrated their portfolios more rapidly as they were more evenly spread initially. Finally, the results suggest that it was also shown that, depending on the market, increasing return constraints may have positive or negative impacts on the out-of-sample performance.

14 June 2024 in Mathematics
Verified
Journal Article
Open access
PDF file
Yong TanYong Tan
Yong Tan
Amir Karbassi YazdiAmir Karbassi Yazdi
Amir Karbassi Yazdi
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
PWPeter Wanke
Peter Wanke
AGAngappa Gunasekaran
Angappa Gunasekaran
GCGiuliani Coluccio
Giuliani Coluccio
Utilizing Multi-Criteria Decision Analysis (MCDA) methods based on environmental, social, and governance (ESG) factors to rank countries according to these criteria aims to evaluate and prioritize countries based on their performance in environmental, social, and governance aspects. The contemporary world is influenced by a multitude of factors, which consequently impact our lives. Various models are devised to assess company performance, with the intention of enhancing quality of life. An exemplary case is the ESG framework, encompassing environmental, social, and governmental dimensions. Implementing this framework is intricate, and many nations are keen on understanding their global ranking and avenues for enhancement. Different statistical and mathematical methods have been employed to represent these rankings. This research endeavors to examine both types of methods to ascertain the one yielding the optimal outcome. The ESG model comprises eleven factors, each contributing to its efficacy. We employ the Performance Contribution Analysis (PCA), Clifford algebra method, and entropy weight technique to rank these factors, aiming to identify the most influential factor in countries’ ESG-based rankings. Based on prioritization results, political stability (PSAV) and the voice of accountability (VA) emerge as pivotal elements. In light of the ESG model and MCDA methods, the following countries exhibit significant societal impact: Sweden, Finland, New Zealand, Luxembourg, Switzerland, Denmark, India, Norway, Canada, Germany, Austria, and Australia. This research contributes in two distinct dimensions, considering the global context and MCDA methods employed. Undoubtedly, a research gap is identified, necessitating the development of a novel model for the comparative evaluation of countries in relation to prior studies.

2 December 2023 in Expert Systems with Applications
Verified
Journal Article
Closed access
JAJorge Junio Moreira Antunes
Jorge Junio Moreira Antunes
PWPeter Wanke
Peter Wanke
AAAbul Kalam Azad
Abul Kalam Azad
Yong TanYong Tan
Yong Tan
JFJoao Ricardo Faria
Joao Ricardo Faria
AMAntônio Mamede
Antônio Mamede