Since the emergence of the efficiency frontier techniques, a series of comparisons
between the methods that led to the resultant efficiency has been presented. In this
paper, data from 99 Japanese banks are used in order to prove the applicability
of efficiency frontier analysis on the East-Asian financial system and to reveal
the differences between inter and intra-regional banks, showing the effect of the
present financial crisis on the efficiency of the studied banks. DEA and FDH are
used to determine the technical and scale efficiency of the analyzed banks and also
it compares fully efficient banks by ranking them through the super-efficiency
notion.This work was co-financed from the European Social Fund through the Sectoral Operational
Programme Human Resources Development 2007–2013, project number POSDRU
159/1.5/S/134197 “Performance and excellence in doctoral and postdoctoral research in
Romanian economics science domain”
