List of Articles Economic efficiency Open Access Article Abstract Page Full-Text 1 - Effective Tax Rate, Government Revenue and Economic Efficiency under the Landscape of Laffer Curve محمدعلی دلدار امیر هرتمنی سید محمدرضا داودی https://doi.org/10.71818/ecj.2024.1062052 Open Access Article Abstract Page Full-Text 2 - Investigating the status of rice mechanization in the eastern regions of Gilan province Roohollah Yousefi Alireza Allameh Mohammad Younesi Alamooti