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This study aims to evaluate the efficiency and intertemporal stability of banks in the five largest ASEAN economies.

June 20, 2026

Bank Efficiency and Stability in ASEAN-5: A DEA Window Analysis

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This study aims to evaluate the efficiency and intertemporal stability of banks in the five largest ASEAN economies.
Data envelopment analysis window analysis applied to 36 banks in ASEAN-5 nations from 2014 to 2023.
Output-oriented variable-returns-to-scale model utilized with total assets, labor costs, and third-party funds as inputs.
Efficiency stability assessed using long-distance indicators and standard-deviation indicators.
Banks achieved an average efficiency score of 84.2% during the observation period.
Singapore had the highest country-level efficiency; Malaysia demonstrated the greatest efficiency stability.
DBS Group Holdings led the banks in average efficiency while CIMB Group Holdings showed most stable performance.

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Randomized trial evaluates bank efficiency and stability in ASEAN-5, highlighting opportunities for improvement.

Riani et al. (2026) studied this question.

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