A mensuração do produto, eficiência e economias de escala dos bancos brasileiros / Measuring output, efficiency and economies of scale in the Brazilian banking sector

AUTOR(ES)

Thomas Fujiwara

DATA DE PUBLICAÇÃO

2006

RESUMO

This work applies the Wang (2003a, 2003b) methodology to define Brazilian banksoutput. It is believed that this new output measure is superior to the ones commonly used by the literature, since it treats output as a flow variable, provides a theoretical basis for defining the role of deposits and takes account of risk exposure in defining output. This new measure is applied to the estimation of stochastic production and cost frontiers for the Brazilian banking sector, aiming at measuring its technical and economic efficiency, and also the size of its scale economies. The frontiers follow a Fourier flexible functional form especification and incorporate efficiency determinants. The results point to the existence of high inneficiency in the banking industry, and also to the ocurrence of increasing returns to scale.

ASSUNTO(S)

brazilian banking stochastic frontier fourier flexible form

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