외환위기 이후 은행 점포의 효율성 분석

다국어 초록 (Multilingual Abstract)

This paper provides an empirical analysis to test whether bank measures, such as branch restructuring and consolidation, which were taken to achieve cost effective management after the foreign exchange crisis in 1997 ultimately led to efficiency improvement of bank branches and to find what determines efficiencies of bank branches. Applying DEA(data. envelopment analysis) methodology to semiannual data for the period between 1999 and 2000, we estimate cost and revenue efficiencies for 351 branches of a large commercial bank in Korea. Contrary to our expectation, we find that both average revenue efficiency and average cost efficiency of bank branches have been significantly dropped. We conjecture that this finding results from considerable increase in the variance of efficiencies of bank branches which reflects in part the lack of efficient branching strategy. In addition, we try to test whether the conventional structure-conduct-performance (SCP) hypothesis or the efficient structure(ES) hypothesis works in the bank branch market, analysing the effect of cost and revenue efficiencies on the profitability of bank branches. We find that cost and revenue efficiencies affect significantly the profitability of bank branches. Finally, using regression analysis, we try to identify some financial variables which are of strategic importance in that they might contribute to the improvement of cost and revenue efficiencies of bank branches.