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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

EstimaÃÃo das eficiÃncias tÃcnicas das firmas distribuidoras de energia elÃtrica: abordagem de fronteiras paramÃtrica e nÃo paramÃtrica / Esteem of the efficiencies techniques of the deliverering firms of electric energy: parametric and nonparametric boarding of borders

Paulo Quinderà Saraiva 18 August 2005 (has links)
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / SÃo estimadas as eficiÃncias tÃcnicas de 36 firmas de distribuiÃÃo de energia elÃtrica. Para tanto, quatro mÃtodos sÃo adotados: um paramÃtrico e trÃs nÃo paramÃtricos. No mÃtodo paramÃtrico, a AnÃlise de Fronteira EstocÃtica (SFA), utilizou-se uma funÃÃo de produÃÃo do tipo Cobb-Douglas. O Data Envelopment Analysis (DEA), o Free Disposal Hull (FDH) e o mÃtodo de Martins-Filho e Yao (2004) sÃo os trÃs mÃtodos nÃo paramÃtricos adotados. Concluiu-se que, o conjunto de produÃÃo nÃo segue rendimentos crescentes de escala. Observou-se que, as firmas do Sudeste foram mais eficientes em mÃdia, que as demais. O mÃtodo de Martins-Filho e Yao (2004) Ã o mais adequado, pois requer um nÃmero menor de hipÃteses e tem a caracterÃstica de ser um estimador suave. / The technical efficiency is estimated for 36 energy distribution firms. Four methods were adopted: one parametric and three nonparametric. In the parametric method, the Stochastic Frontier Analysis (SFA), the Cobb-Douglas production function was used. The Data Envelopment Analysis (DEA), the Free Disposal Hull (FDH) and the method developed by Martins-Filho and Yao (2004) are the three nonparametric methods adopted. It was seen that, the production set didnât follow increasing returns to scale. It was concluded that, the firms of the Southeast region of Brazil were, on the average, more efficient than the others. The Martins-Filho and Yaoâs (2004) method was most the adequate, since it requires less assumptions and has the characteristic of being a smooth estimator.

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