List of Articles Informal Institutions Open Access Article Abstract Page Full-Text 1 - Evaluation of the impact of informal institutions on the creation of opportunistic entrepreneurship using the GMM method Mahdie Maveddaty Taghi Torabi Mahmood Mahmoodzade Abass Memarnejad Open Access Article Abstract Page Full-Text 2 - Presenting the Model of Tax Morale with Grounded Theory Approach Hamed Rabi Beigi Rahmatollah Mohammadipour Iraj Noravesh reza salehi 10.30495/fed.2023.702191