Custo/benefício de aeronaves: uma abordagem pela Análise Envoltória de Dados
Cost-benefit of aircrafts: an approach through Data Envelopment Analysis
Reinas, Rafael Iglesias; Mariano, Enzo Barberio; Rebelatto, Daisy Aparecida do N.
http://dx.doi.org/10.1590/S0103-65132011005000048
Prod, vol.21, n4, p.684-695, 2011
Resumo
O objetivo deste artigo é a aplicação da técnica de Pesquisa Operacional Análise Envoltória de Dados – DEA, por meio do índice composto das fronteiras clássica e invertida, para avaliar o custo/beneficio de aeronaves de transporte civil. Para tal, foram adotados como inputs: a) preço de mercado, e b) custos operacionais; e como outputs: a) peso de carga paga, b) velocidade de cruzeiro, e c) razão máxima de subida com um único motor. Para garantir a homogeneidade das DMUs, os aviões foram divididos segundo o sistema de propulsão e segundo as categorias: regional, narrow‑body e wide-body. Foram também agrupados em diferentes alcances, para que se pudessem identificar os aviões com melhor custo/beneficio em cada um. Os resultados encontrados permitem afirmar que os aviões com o melhor custo/beneficio são os que já tiveram sua produção descontinuada, mas que ainda não estão muito defasados tecnologicamente.
Palavras-chave
Aeronaves de transporte civil. Análise custo/beneficio. Análise Envoltória de Dados – DEA. Fronteira invertida.
Abstract
The objective of this paper was to apply the operational research technique of Data Envelopment Analysis (DEA), through the composite index of classic and inverted borders, to evaluate the cost-benefit of civil transport aircrafts. To this end, a) market price, and b) operating costs were used as inputs; and, a) payload, b) cruise speed, and c) maximum reason climb with one engine were used as outputs. To ensure homogeneity of DMUs, the planes were divided according to the propulsion system and in the following categories: regional, narrow-body and wide-body; they were also grouped into different ranges, so that the best cost-benefit for each aircraft could be identified. Results allowed for the following conclusion: the best cost-benefits were found in planes where the production had already been discontinued, but they were not very technologically outdated yet.
Keywords
Civil transport aircraft. Cost-benefit analysis. Data Envelopment Analysis – DEA. Inverted frontier.
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