Volume & Issue: Volume 9, Issue 1, Winter 2021, Pages 1-100 
1. Evaluating the Efficiency of Two-stage Networks using Ratio Analysis

Pages 1-12

Asieh sadat Hatami; Morteza Shafiee; Mozhdeh Rabbani; Mohammad Reza Mozaffari

3. Profit efficiency in non competitive market

Pages 19-38

Ghasem Tohidi; Simin Tohidnia

4. Estimating Production Function under Endogeneity: A Model Based on Data Envelopment Analysis

Pages 39-52

Roghyeh Malekii Vishkaeii; Behrooz Danishian; Farhad Hosseinzadeh lotfi

5. Ranking of Non-Extreme Efficient units based on multi ideal DMUs in PPS

Pages 53-76

Alireza Salehi; Farhad Hosseinzadeh lotfi; Mohsen Rostamy-Malkhalifeh