List of Articles Mark-Up Open Access Article Abstract Page Full-Text 1 - Determining of Influencing Factors for Identified Products Marketing (Case Study: Identified Egg in Tehran) I. Radipour V. Borimnejad Open Access Article Abstract Page Full-Text 2 - 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 3 - The relationship between concentration, mark-up and stock returns (Case Study: Tehran Stock Exchange) Mohammadnabi Shahiki tash Ali darikandeh Mohamad Rasoul Heshmati Seyed-Hasan Hosseini Open Access Article Abstract Page Full-Text 4 - Measuring Monopoly Power of Manufacturing Industry in Iran: Stochastic Frontier Functions Approach Farhad Khodadad Kashi Jafar Ebadi Seyed Ziaoddin Kiaalhoseini Khalil Heidari