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بررسی اثر سیاست قیمتگذاری محصولات کشاورزی بر ارزش اقتصادی آب (مطالعۀ موردی: زراعت چغندرقند در شهرستان نیشابور) | ||
| تحقیقات اقتصاد و توسعه کشاورزی ایران | ||
| مقاله 21، دوره 46، شماره 3، مهر 1394، صفحه 609-621 اصل مقاله (1.07 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijaedr.2015.55544 | ||
| نویسندگان | ||
| وحیده انصاری* 1؛ حسن میرزایی2 | ||
| 1استادیار دانشکدة اقتصاد و توسعة کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران | ||
| 2کارشناس ارشد دانشکدة اقتصاد و توسعة کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران | ||
| چکیده | ||
| تعیین قیمت آب معادل ارزش اقتصادی آن، نقش عمده‌ای در مدیریت تقاضای آب، به‌ویژه در شرایط بحران کم‌آبی اخیر دارد. قیمت محصول، جزئی اساسی در تعیین ارزش اقتصادی آن است؛ بنابراین، اتخاذ سیاست‌های حمایتی صحیح در زمینة قیمتگذاری محصولات، اهمیت ویژه‌ای دارد. در این راستا، هدف از مطالعة حاضر تحلیل اثر سیاست قیمت تضمینی محصول چغندرقند بر ارزش واقعی آب و تخصیص بهینة آن در شهرستان نیشابور است. بهاین‌منظور، ابتدا فرم تابعی مناسب و منطبق بر فناوری تولید این محصول براساس معیارهای اقتصادسنجی با استفاده از اطلاعات مربوط به 95 کشاورز در سال 1389- که با روش نمونه‌گیری دومرحله‌ای انتخاب شدند- تعیین و تولید نهایی آب محاسبه شد. سپس ارزش اقتصادی آب، با درنظرگرفتن قیمت‌های تضمینی مختلف در چند سناریو تحلیل شد. نتایج این مطالعه نشان می‌دهد تابع تولید ترانسلوگ بهترین فرم تابعی است. ارزش اقتصادی آب براساس قیمت‌های سال 1389، معادل 5/1430 ریال به‌ازای هر مترمکعب برآورد شد که تفاوت عمده‌ای با قیمت پرداختی کشاورزان دارد. همچنین، نتایج بیانگر آن است که اعمال قیمت‌های تضمینی مختلف برای چغندرقند، به تفاوت‌های شایان توجهی در ارزش اقتصادی آب منجر می‌شود؛ بنابراین، برای افزایش بازدهی مصرف آب، قیمت تضمینی محصولات کشاورزی باید با احتیاط بیشتری تعیین شود تا با انعکاس ارزش واقعی آب، از اتلاف آن جلوگیری شود. | ||
| کلیدواژه‌ها | ||
| ارزش اقتصادی آب؛ ایران؛ چغندرقند؛ سیاست قیمت تضمینی؛ فرم تابعی | ||
| عنوان مقاله [English] | ||
| The effect of agricultural product pricing policies on the economic value of water (Case study: Sugar beet farming in the city of Nishabur) | ||
| نویسندگان [English] | ||
| Vahideh Ansari1؛ Hasan Mirzaee2 | ||
| 1Assistant Professor, Faculty of Agricultural Economics and Development, University College of Agriculture and Natural Resources, University of Tehran, Iran | ||
| 2Former Graduate Student, Faculty of Agricultural Economics and Development, University College of Agriculture and Natural Resources, University of Tehran, Iran | ||
| چکیده [English] | ||
| Setting the price of water equal to its economic value has important role in the management of water demand, especially in the recent water crisis. One of the main components in determining economic value of water is the price of the product. Therefore, it is important to adopt precise supportive policies on pricing the product. Therefore, the purposeof the presentstudyisto analysis the effect of guaranteedpricepolicy for sugar beet onthe realvalueof water and its optimal allocation inNeyshabur. To this end,at the first,the appropriate functional form conformed to the production technology of the sugar beetwas selectedbased on econometriccriteriaand usinginformation about95farmersin theyear2011 which were selected by two stage sampling method and marginalproductivity of water was calculated.Then, the economic value ofwaterwas analyzedinseveralscenarios consideringdifferent guaranteed prices. The resultsshowthatthe bestfunctional formforthe productionfunctionis Translogfunctionandeconomic value of waterbased on2011 price was estimated1430.5 Rails percubic meterswhichhasmajor differencewiththefarmers payingprice. Moreover, theresults indicatethat imposing different guaranteedpricesforsugar beet will lead tosignificantdifferences in theeconomic value ofwater. So,forimprovingefficiency of water use,guaranteed price of agricultural productsshouldbe determinedwith more cautionso as toreflect therealvalueof waterforpreventingwastageof it. | ||
| کلیدواژه‌ها [English] | ||
| Economic Value of water, functional form, guaranteed price policy, Iran, Sugar beet | ||
| مراجع | ||
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