The Cost Efficiency of the Brazilian Electricity Distribution Utilities: A Comparison of Bayesian SFA and DEA Models
نویسندگان
چکیده
The purpose of this study is to evaluate the efficiency indices for 60 Brazilian electricity distribution utilities. These scores are obtained by DEA Data Envelopment Analysis and Bayesian Stochastic Frontier Analysis models, two techniques that can reduce the information asymmetry and improve the regulator’s skill to compare the performance of the utilities, a fundamental aspect in incentive regulation schemes. In addition, this paper also addresses the problem of identifying outliers and influential observations in deterministic nonparametric DEA models.
منابع مشابه
Efficiency Analysis of German Electricity Distribution Utilities : Non-Parametric and Parametric Tests
This paper applies parametric and non-parametric and parametric tests to assess the efficiency of electricity distribution companies in Germany. We address traditional issues in electricity sector benchmarking, such as the role of scale effects and optimal utility size, as well as new evidence specific to the situation in Germany This paper applies parametric and non-parametric and parametric t...
متن کاملMeasuring the efficiency of Iranian electricity distribution companies, a combined approach to bargaining game with DEA
Many models have been proposed for measuring performance of business agencies up to now. The goal of this research is providing a new approach for evaluation and measurement of efficiencies of national power distribution companies. This approach is provided as a combination of Data Envelopment Analysis (DEA) and Game Theory for evaluation of decision-making units by a large scale of actions. I...
متن کاملMeasuring the efficiency of Iranian electricity distribution companies, a combined approach to bargaining game with DEA
Many models have been proposed for measuring performance of business agencies up to now. The goal of this research is providing a new approach for evaluation and measurement of efficiencies of national power distribution companies. This approach is provided as a combination of Data Envelopment Analysis (DEA) and Game Theory for evaluation of decision-making units by a large scale of actions. I...
متن کاملA comparison of UK and Japanese electricity distribution performance 1985-1998: lessons for incentive regulation
This paper examines relative performance of electricity distribution systems in the UK and Japan between 1985 and 1998 using costbased benchmarking with data envelopment analysis (DEA) and stochastic frontier analysis (SFA) methods. The results suggest that the productivity gain in the UK electricity distribution has been larger than in the Japanese sector. In particular, productivity growth ac...
متن کاملCost efficiency analysis of electricity distribution networks: Application of the StoNED method in the Finnish regulatory model
Electricity distribution network is a prime example of a natural local monopoly. In many countries, electricity distribution firms are regulated by the government. In Finland, the regulator estimates the efficient cost frontier using the data envelopment analysis (DEA) and stochastic frontier analysis (SFA) methods. This paper reports the main results of the research project commissioned by the...
متن کامل