Contraste de un indicador de eficiencia agregado y la estimación paramétrica. Aplicación al sector de crédito cooperativo español
In this paper we try to compare two different efficiency measures, on one hand, the aggregate index used by the Spanish Central Bank, and on the other hand, that obtained by parametric methodology and a Translog cost function. We have studied differences between these two efficiency indicators in the credit co-operative sector because in this sector this aspect has not been studied yet and its market share is reduced compared with private banks and savings banks. This work shows that results are statistical different depending on the measure used. Differences are specially important when efficiency across size is studied, then the index used by the Spanish Central Bank is not satisfactory.
Volume (Year): (1999)
Issue (Month): 33 (December)
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