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Comparando Medidas de Produtividade: DEA, Fronteira de Produção Estocástica

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  • Ajax R. B. Moreira
  • Thais C. R. Fonseca

Abstract

Os modelos análise envoltória de dados (DEA) e fronteira de produção estocástica (SF) obtêmestimativas da produtividade utilizando abordagens complementares, o que dificulta acomparabilidade entre eles, particularmente quando se admite uma componente estocástica nosdados. Propomos: a) um critério de avaliação para a estimativa da produtividade obtida porcada modelo ? índice de erro de classificação (IEC); b) uma abordagem empírica da simulaçãopara comparar esses modelos; e c) uma versão bayesiana para o modelo SF que permite derivaro valor esperado do posto da produtividade. Os resultados mostram que maiores IECs ? resultados piores ? estão relacionados com:a) retornos variáveis de escala quando o DEA é utilizado; b) pequenas amostras (n

Suggested Citation

  • Ajax R. B. Moreira & Thais C. R. Fonseca, 2005. "Comparando Medidas de Produtividade: DEA, Fronteira de Produção Estocástica," Discussion Papers 1069, Instituto de Pesquisa Econômica Aplicada - IPEA.
    • Handle: RePEc:ipe:ipetds:1069
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    Cited by:

    1. Ferro, Gustavo & Lentini, Emilio J & Mercadier, Augusto & Brenner, Federica, 2014. "Eficiencia energética en el sector de agua y saneamiento: estimaciones utilizando una función de requerimientos de insumo [Energy efficiency in the water and sanitarion sector: an input requirement," MPRA Paper 58480, University Library of Munich, Germany.

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