Journal of Asian Business and Economic Studies
Vol. 26(01) , April 2019, Page 02-16

Incorporating risk into technical efficiency for Vietnam’s and ASEAN banks
Ngo Thanh Tra & Lê Quang Minh & Ngo Phu Thanh

DOI: 10.1108/JABES-10-2018-0083
Purpose – The purpose of this paper is to incorporate risk in technical efficiency of ASEAN banks in a panel data framework for the period 2000 to 2015. Design/methodology/approach – The directional distance function and semi-parametric framework are employed to estimate efficiency scores for two scenarios, one with only good outputs and the other with a combination of good and bad outputs. Findings – The findings show there is no evidence of technological progress for banks in ASEAN and concerns about the outperformance of Vietnam’s banks. In addition, performance of Vietnam’s banks tends to be distorted by low level of loan loss reserves. Practical implications – To reflect the true performance and shorten the period of removing bad assets, the State Bank of Vietnam can request banks in Vietnam to book more loan loss reserves. Originality/value – By examining such a new approach, this study makes an early attempt to incorporate credit risk into the banking efficiency in ASEAN region.

Risk, Bank efficiency, Directional distance function, Semi-parametric estimation of stochastic frontier models
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