List of Articles رویکرد هال - راجر Open Access Article Abstract Page Full-Text 1 - Estimating the market power of the insurance industry in Iran using the Hall-Roger approach (during the period 1380-1399) Jafar Yousefi Mehdi Moradi Yousof HajiAsghari Rostam Garadagi 10.30495/eco.2023.1978230.2725