Banca de DEFESA: FRANCISCO ROLDINELI VARELA MARQUES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FRANCISCO ROLDINELI VARELA MARQUES
DATE: 23/12/2020
TIME: 15:00
LOCAL: VIDEOCONFERÊNCIA (meet.google.com/xrm-osps-obt)
TITLE:

GOVERNANCE AND DIVISIONAL DYNAMIC EFFICIENCY OF PIPED GAS DISTRIBUTORS IN BRAZIL

KEY WORDS:

Piped gas; Corporate Governance; Efficiency; DNSBM.

PAGES: 121
BIG AREA: Ciências Sociais Aplicadas
AREA: Administração
SUMMARY:

In recent years, the piped gas segment has undergone changes of its own, becoming an
increasingly important matrix in Brazilian energy. It is a segment widely seen as an
attractive means of achieving environmental objectives, especially as it is a segment
characterized by major technological advances. In the national market, most distribution
companies operate with characteristics of natural monopolies, being a system with
characteristics that are not feasible to competition. In view of the degree of importance of
this segment to our economy, the distributors have sought to improve their compliance, as
well as their determinants of efficiency. In this sense, the present research seeks to analyze
the association between governance and divisional inter-temporal dynamic efficiency in
piped gas distributors in Brazil. To answer the question, we will do the efficiency analysis in
two stages. The first stage corresponds to the originality of the research in the application of
the Dynamic DEA with network structure: A slacks-based - DNSBM that until now is absent
in other studies of the segment. The second stage was estimated through a panel of
random effects in order to identify the relationship between efficiency and governance and
with exogenous factors, developing the hypotheses - there is a positive association
between corporate governance and the efficiency of gas distributors piped from Brazil and :
there is a significant positive association between the concentration of ownership and the
efficiency of piped gas distributors in Brazil. To calculate efficiency, twenty-one distributors
were considered. When the dimensions of the networked dynamic DEA are brought
together, a more comprehensive analysis of the 2014-2019 period is allowed, where the two
divisional interactions () between the periods () and divisional periods () are reflected in the
general efficiency estimates (). The results indicate that: (1) The DNSBM model took into
account the internal structure of the piped gas distributors and provided better estimates,
providing a more robust intertemporal frontier of efficiency. Through the intertemporal
trajectory, 48% of the distributors are on the frontier of efficiency, which represents a
segment with low excellence when it comes to efficiency. (2) In the second stage, we found
that governance does not have a positive association with efficiency, and hypotheses and
this study are rejected.

BANKING MEMBERS:
Presidente - 3220688 - ALEXANDRO BARBOSA
Externo à Instituição - ANDERSON ROBERTO PIRES E SILVA
Externo à Instituição - RAIMUNDO MARCIANO DE FREITAS NETO - IFRN