Mohammadipour,R , , Shahnoushi Forushani,N , , Dourandish,A , and Abdolhasani,L . "A Comparative Study of the Retail Margin and Efficiency: Municipal Green Grocery Centers vs. Green Groceries (Case Study of Mashhad County)", Agricultural Economics and Development, 23, 1, 2015, 155-184. doi: 10.30490/aead.2015.58957