List of Articles Lerner Index Open Access Article Abstract Page Full-Text 1 - Estimating of market power and marketing margin in the Iranian horticultural products market using the non-structural approach of Lerner index (Case study of apple product) mojtaba barzegar devin Gholam reza yavari abolfazl mahmoodi 10.30495/jaeer.2023.68802.10935 Open Access Article Abstract Page Full-Text 2 - Measuring Monopoly Power of Manufacturing Industry in Iran: Stochastic Frontier Functions Approach Farhad Khodadad Kashi Jafar Ebadi Seyed Ziaoddin Kiaalhoseini Khalil Heidari Open Access Article Abstract Page Full-Text 3 - Measuring the monopoly power of Iran's banking industry with the Hall-Roger approach Jafar Yousefi Mehdi Moradi Seyed Yousef Hajiasghari, Rostam Gharehdaghi