TY - JOUR AU - soheili, K. AU - Fattahi, SH. AU - zabihi dan, M.S AU - hadizadegan, M. TI - The Relationship between Efficiency and Industrial Concentration of Food and Beverage Industries in Iran JO - Economic Modeling VL - 8 IS - 27 SP - 37 EP - 51 PY - 2015 DO - ER -