A review of the Studies of Evaluating and Measuring the Efficiency of Libraries Using Data Envelopment Analysis Method for Use in Public Libraries of Iran

The purpose of this article is to analyze articles about library efficiency in the field of library and information science.

Methedology: 

The concept of library input-output efficiency is extracted from the general framework of library performance. 

The findings of the study of reflective indicators of library services showed that whenever the sample size of the library increases or the input output index changes, the efficiency score of the library changes immediately

Through the combination of research results for internal and external library efficiency, it can be obtained that the research of foreign scientists started earlier and the research process is longer and regular. In recent years, research on library efficiency by domestic researchers has increased. In general, it is in progress. Showing how to choose the right models to calculate and adjust the weight of the index requires more effort.