List of Articles Marginal cost Open Access Article Abstract Page Full-Text 1 - Evaluating impact Demand management policies (price and non price) on Energy conservation in IRAN using Energy system model M. R. Sharifazadeh Ali A. Esmaeilnia Open Access Article Abstract Page Full-Text 2 - Evaluation of financial efficiency with non-radial model and fuzzy data and inputs and outputs with nonlinear marginal margin with data envelopment analysis technique Saeid savadkouhi Farhad Hosseinzadeh Lotfi Mohammadreza Shahriari Mohsen Vaez-Ghsemi Open Access Article Abstract Page Full-Text 3 - Marine Safety and Estimation of Safety Costs of Fishing (Case Study: Shrimp Fishery in Hormozgan Province, Iran) Mohammad Javad Soltani Ghaleh Yaghoub Zeraatkish Zahra Abedi