Revista de Economia e Sociologia Rural
http://www.resr.periodikos.com.br/article/doi/10.1590/1806-9479.2023.276113
Revista de Economia e Sociologia Rural
ORIGINAL ARTICLE

Efficiency and its determinants in the public irrigation projects of Brazil

Eficiência dos regadios públicos no Brasil e os seus determinantes

Rui Manuel de Sousa Fragoso; Marcia Gonçalves Pizaia

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Abstract

This paper aims to assess efficiency in the public irrigation projects of Brazil. A Data Envelopment Analysis (DEA) model using a limited set of significant variables and adapted to the specific characteristics of existing public irrigation projects in the country was used. Then a Multiple Regression Analysis was performed to efficient irrigation projects to estimate other inputs that did not have been considered in the DEA model. The results indicate that 15 public projects out of the 34 studied, reached the technical efficiency score, as well as pure efficiency and scale efficiency. The work brings several new contributions to the literature on irrigation management and practical implications for decision makers. It is noteworthy that the results of the study can be useful for a better understanding of the general efficiency of public irrigation and what are its most determining factors.

Keywords

irrigated agriculture, data envelopment analysis, multiple regression

Resumo

Resumo: Este artigo pretende e avaliar a eficiência dos regadios públicos no Brasil. Foi usado um modelo de análise envoltória de dados (DEA), com um conjunto limitado de variáveis significantes e adaptadas às caraterísticas específicas dos projetos de regadio existentes. Depois, foi aplicado um modelo de análise regressão múltipla aos projetos de regadio eficientes, para estimar os inputs que não foram considerados no modelo de DEA. Os resultados indicam que 15 projetos entre os 34 estudados atingem a eficiência técnica, bem como a eficiência pura e a eficiência de escala. O trabalho trás alguns contributos novos para a literatura sobre gestão do regadio e tem implicações práticas para os decisores. Os resultados do estudo podem ser úteis para uma melhor compreensão da eficiêcncia geral do regadio públicoe de quais são os fatores determinantes.

Palavras-chave

agricultura de regadio, análise envoltória de dados, regressão múltipla

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Submetido em:
04/01/2023

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