Aline Veronese da Silva - Academia.edu (original) (raw)
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Papers by Aline Veronese da Silva
Utilities Policy, Oct 1, 2019
Regulation plays an important role under natural monopoly markets, such as energy electricity dis... more Regulation plays an important role under natural monopoly markets, such as energy electricity distribution and transmission. In recent years, abrupt changes in the regulation of the Brazilian Transmission System Operators (TSOs) has increased the risk perceived by investors, harming the economic stability of the sector. In this paper, we present a review of the benchmarking model used to regulate Brazilian TSOs' operational costs. The objective of the paper is to suggest improvements in the Data Envelopment Analysis (DEA) model proposed by the regulator in 2018. The suggested changes would help to ensure a robust and reliable regulatory process.
Socio-economic Planning Sciences, Mar 1, 2019
In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distributio... more In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distribution utilities using Data Envelopment Analysis (DEA). Estimated efficiencies range from 22.46% to 100%. Although environmental information is available in the data set, corrected efficiencies were not investigated. Different second stage models can be applied to adjust for environmental heterogeneity. Although statistical correlation among efficiencies and environmental variables can be easily estimated, corrected efficiencies are subject to the underlying structure of the second stage model. Therefore, different second stage models may achieve different corrected efficiencies. We provide a detailed statistical analysis of the Tobit model and compound error models for second stage analysis. Limitations are described and the corrected efficiencies using these models are evaluated. Potentially, Brazilian power distribution utilities may achieve substantial changes in estimated efficiencies if second stage analysis is used.
Socio-economic Planning Sciences, Mar 1, 2022
Decision Analytics Journal, Jun 1, 2022
Decision Analytics Journal
Socio-Economic Planning Sciences, 2021
Utilities Policy, 2019
Regulation plays an important role under natural monopoly markets, such as energy electricity dis... more Regulation plays an important role under natural monopoly markets, such as energy electricity distribution and transmission. In recent years, abrupt changes in the regulation of the Brazilian Transmission System Operators (TSOs) has increased the risk perceived by investors, harming the economic stability of the sector. In this paper, we present a review of the benchmarking model used to regulate Brazilian TSOs' operational costs. The objective of the paper is to suggest improvements in the Data Envelopment Analysis (DEA) model proposed by the regulator in 2018. The suggested changes would help to ensure a robust and reliable regulatory process.
Socio-Economic Planning Sciences, 2019
In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distributio... more In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distribution utilities using Data Envelopment Analysis (DEA). Estimated efficiencies range from 22.46% to 100%. Although environmental information is available in the data set, corrected efficiencies were not investigated. Different second stage models can be applied to adjust for environmental heterogeneity. Although statistical correlation among efficiencies and environmental variables can be easily estimated, corrected efficiencies are subject to the underlying structure of the second stage model. Therefore, different second stage models may achieve different corrected efficiencies. We provide a detailed statistical analysis of the Tobit model and compound error models for second stage analysis. Limitations are described and the corrected efficiencies using these models are evaluated. Potentially, Brazilian power distribution utilities may achieve substantial changes in estimated efficiencies if second stage analysis is used.
The Journal of Energy Markets, Dec 18, 2020
A regulacao do setor de energia tem passado por desafios nos ultimos anos. Alem de garantir tarif... more A regulacao do setor de energia tem passado por desafios nos ultimos anos. Alem de garantir tarifas a precos justos, os reguladores tambem tem de incentivar ganhos de produtividade e responsabilidade socio-ambiental das companhias. Por isso, metodos capazes de estimular a competicao entre as empresas reguladas, mesmo que indireta, sao cada vez mais utilizados. Nesse contexto, as tecnicas de Benchmarking tem sido amplamente aplicadas por reguladores do setor de energia. Esses modelos tem como objetivo fazer uma comparacao entre empresas de um mesmo segmento e definir um escore de eficiencia relativa, apontando quais estao na fronteira de eficiencia e sao, por isso, o benchmark do setor. Tecnica de Benchmarking usada por varios reguladores, o Data Envelopment Analysis (DEA) e aplicado desde 2011 pela Agencia Nacional de Energia Eletrica (ANEEL) como parte do modelo regulatorio do setor de distribuicao de energia. DEA e um metodo nao-parametrico que utiliza programacao linear para defi...
Regulation plays an important role in natural monopoly markets, such as energy electricity distri... more Regulation plays an important role in natural monopoly markets, such as energy electricity distribution and transmission. A robust regulatory process assures the economic-financial balance of the system utilities while sets fair tariffs to consumers. In order to achieve these objectives, the Brazilian Energy regulator (ANEEL) has been using benchmarking models to define the efficient operational costs of distribution and transmission companies. These benchmarking models affect a significant portion of the companies’ revenues and the electricity tariff. Although regulators worldwide use benchmarking techniques for the same purposes, the Brazilian case is especially challenging, due to its specific features. The continental dimension of the country and the dissimilarities among the compared companies require the use of specific solutions in the modeling process to assure reliable efficiency scores. In this context, omitted variables may cause great damage in the final results. Thus, t...
2007 IEEE Systems and Information Engineering Design Symposium, 2007
... Aline Veronese da Silva, Bruno Grau Makowski, Ellen J. Bass, Senior Member, IEEE, Eric Danzig... more ... Aline Veronese da Silva, Bruno Grau Makowski, Ellen J. Bass, Senior Member, IEEE, Eric Danziger, Fernando Fialho Bassols, and Lia Buarque de Macedo Guimarães T Page 2. ... [2] S.Lauesen, User Interface Design: A Software Engineering Perspective. Addison Wesley, 2005. ...
Utilities Policy, Oct 1, 2019
Regulation plays an important role under natural monopoly markets, such as energy electricity dis... more Regulation plays an important role under natural monopoly markets, such as energy electricity distribution and transmission. In recent years, abrupt changes in the regulation of the Brazilian Transmission System Operators (TSOs) has increased the risk perceived by investors, harming the economic stability of the sector. In this paper, we present a review of the benchmarking model used to regulate Brazilian TSOs' operational costs. The objective of the paper is to suggest improvements in the Data Envelopment Analysis (DEA) model proposed by the regulator in 2018. The suggested changes would help to ensure a robust and reliable regulatory process.
Socio-economic Planning Sciences, Mar 1, 2019
In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distributio... more In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distribution utilities using Data Envelopment Analysis (DEA). Estimated efficiencies range from 22.46% to 100%. Although environmental information is available in the data set, corrected efficiencies were not investigated. Different second stage models can be applied to adjust for environmental heterogeneity. Although statistical correlation among efficiencies and environmental variables can be easily estimated, corrected efficiencies are subject to the underlying structure of the second stage model. Therefore, different second stage models may achieve different corrected efficiencies. We provide a detailed statistical analysis of the Tobit model and compound error models for second stage analysis. Limitations are described and the corrected efficiencies using these models are evaluated. Potentially, Brazilian power distribution utilities may achieve substantial changes in estimated efficiencies if second stage analysis is used.
Socio-economic Planning Sciences, Mar 1, 2022
Decision Analytics Journal, Jun 1, 2022
Decision Analytics Journal
Socio-Economic Planning Sciences, 2021
Utilities Policy, 2019
Regulation plays an important role under natural monopoly markets, such as energy electricity dis... more Regulation plays an important role under natural monopoly markets, such as energy electricity distribution and transmission. In recent years, abrupt changes in the regulation of the Brazilian Transmission System Operators (TSOs) has increased the risk perceived by investors, harming the economic stability of the sector. In this paper, we present a review of the benchmarking model used to regulate Brazilian TSOs' operational costs. The objective of the paper is to suggest improvements in the Data Envelopment Analysis (DEA) model proposed by the regulator in 2018. The suggested changes would help to ensure a robust and reliable regulatory process.
Socio-Economic Planning Sciences, 2019
In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distributio... more In 2014 the Brazilian Electricity Regulator (ANEEL) evaluated the efficiency of power distribution utilities using Data Envelopment Analysis (DEA). Estimated efficiencies range from 22.46% to 100%. Although environmental information is available in the data set, corrected efficiencies were not investigated. Different second stage models can be applied to adjust for environmental heterogeneity. Although statistical correlation among efficiencies and environmental variables can be easily estimated, corrected efficiencies are subject to the underlying structure of the second stage model. Therefore, different second stage models may achieve different corrected efficiencies. We provide a detailed statistical analysis of the Tobit model and compound error models for second stage analysis. Limitations are described and the corrected efficiencies using these models are evaluated. Potentially, Brazilian power distribution utilities may achieve substantial changes in estimated efficiencies if second stage analysis is used.
The Journal of Energy Markets, Dec 18, 2020
A regulacao do setor de energia tem passado por desafios nos ultimos anos. Alem de garantir tarif... more A regulacao do setor de energia tem passado por desafios nos ultimos anos. Alem de garantir tarifas a precos justos, os reguladores tambem tem de incentivar ganhos de produtividade e responsabilidade socio-ambiental das companhias. Por isso, metodos capazes de estimular a competicao entre as empresas reguladas, mesmo que indireta, sao cada vez mais utilizados. Nesse contexto, as tecnicas de Benchmarking tem sido amplamente aplicadas por reguladores do setor de energia. Esses modelos tem como objetivo fazer uma comparacao entre empresas de um mesmo segmento e definir um escore de eficiencia relativa, apontando quais estao na fronteira de eficiencia e sao, por isso, o benchmark do setor. Tecnica de Benchmarking usada por varios reguladores, o Data Envelopment Analysis (DEA) e aplicado desde 2011 pela Agencia Nacional de Energia Eletrica (ANEEL) como parte do modelo regulatorio do setor de distribuicao de energia. DEA e um metodo nao-parametrico que utiliza programacao linear para defi...
Regulation plays an important role in natural monopoly markets, such as energy electricity distri... more Regulation plays an important role in natural monopoly markets, such as energy electricity distribution and transmission. A robust regulatory process assures the economic-financial balance of the system utilities while sets fair tariffs to consumers. In order to achieve these objectives, the Brazilian Energy regulator (ANEEL) has been using benchmarking models to define the efficient operational costs of distribution and transmission companies. These benchmarking models affect a significant portion of the companies’ revenues and the electricity tariff. Although regulators worldwide use benchmarking techniques for the same purposes, the Brazilian case is especially challenging, due to its specific features. The continental dimension of the country and the dissimilarities among the compared companies require the use of specific solutions in the modeling process to assure reliable efficiency scores. In this context, omitted variables may cause great damage in the final results. Thus, t...
2007 IEEE Systems and Information Engineering Design Symposium, 2007
... Aline Veronese da Silva, Bruno Grau Makowski, Ellen J. Bass, Senior Member, IEEE, Eric Danzig... more ... Aline Veronese da Silva, Bruno Grau Makowski, Ellen J. Bass, Senior Member, IEEE, Eric Danziger, Fernando Fialho Bassols, and Lia Buarque de Macedo Guimarães T Page 2. ... [2] S.Lauesen, User Interface Design: A Software Engineering Perspective. Addison Wesley, 2005. ...