Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This study uses a sample of 48 commercial banks in Taiwan for the period 2008 to 2010 to compare the operating efficiency between 30 domestic banks and 18 foreign banks. Due to differences in cultural sentiments, values, and business philosophies, this paper employs the Meta-Hybrid DEA model to construct the group frontier and to calculate technology gap ratios (TGR) as inter-group objective indicators, which are then applied to compare the performance across the two groups of banks.