This document presents an extensive bibliographic literature review of Data Envelopment Analysis (DEA) from 2020 to August 2021, compiling 1166 articles categorized by author, country, and application area. The review identifies major contributions from countries like China, India, and Iran, with the banking sector being a significant application area. It highlights the continued relevance and use of DEA in various fields despite its inception over forty years ago.
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