List of Articles ارزشگذاری مشروط Open Access Article Abstract Page Full-Text 1 - Estimation of recreation value and recognition of effective factors for Willingness to Pay for urban natural parks by using Contingent valuation method Sedighe kiani salmi Open Access Article Abstract Page Full-Text 2 - ارزشگذاری منابع آب زیرزمینی در مصارف کشاورزی، مطالعه موردی: شهرستان بیجار سمیه ذوالفقاری احمد قیدی Open Access Article Abstract Page Full-Text 3 - ارزش اقتصادی برنج ارگانیک یدالله بستان احمد فتاحی اردکانی محمدرضا تابش Open Access Article Abstract Page Full-Text 4 - Estimation of Economic-resort Valuation of Khafr Waterfall and Recreational area by Determining Effective Factors on Willingness to pay by Using CVM Open Access Article Abstract Page Full-Text 5 - Assessment of Factors Influencing Consumers’ Willingness to Pay for Organic Chicken in Urmia SH Amiyan M Kavoosi Kalashami Z Amir S Gheibi Open Access Article Abstract Page Full-Text 6 - Estimating the Economic Benefits of Jazmourian Wetland Restoration and Preservation Programs Abbas Mirzaei Mansour Zibaei Open Access Article Abstract Page Full-Text 7 - Estimating the Outdoor Recreation Value of Band Village:Application of Contingent Valuation Method H. Raheli M. Khodaverdizadeh H. Najafialamdarloo