تقدير دالة تكاليف البنوك التجارية في اليمن : دراسة قياسية

الملخص EN

The main aim of this study is to estimate the transcendental logarithmic costs function for a sample of commercial banks in Yemen using the random parameters stochastic frontier analysis (SAF), on balanced cross - sectional series data during the period of 2000-2014.

The substitution and price elasticities of demand for the banks' inputs, economies of scale, and economies of scope were measured.

The results of this study reveal that all commercial banks under investigation do not have the possibility of substitution between labour and fixed capital, with the exception of the Yemen Bank for Reconstruction and Development, and have the possibility of substitution between labour and cash capital.

Moreover, except for the Arab Bank, which do not enjoy economies of scale, the sample banks have the possibility of substitution between fixed capital and cash capital.

In addition, it is found that commercial banksin Yemen are characterized by integrative costs, via achieving economies of scope.

Key words: cost efficiency, Yemen commercial banks, Panel dataJEL Classification: C24, D21, G21