ارزیابی ارتباط کارایی اقتصادی با کارایی زیست ‌محیطی در بخش کشاورزی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز

چکیده

اهداف: این مطالعه با هدف ارزیابی ارتباط کارایی اقتصادی با کارایی زیست ‌محیطی در بخش کشاورزی ایران صورت گرفت.
 
مواد و روش‌ها: در این تحقیقاز روش تحلیل پوششی داده‌ها و آزمون علیت تودا- یاماموتو بهره گرفته شد.داده‌ها‌ی مورد نیاز جهت انجام این مطالعه از مرکز آمار ایران، بانک مرکزی و وزارت نیرو طی سال­های 1395‌ -1374 جمع‌آوری گردید.
 
یافته‌ها: نتایج نشان داد که مقادیر متوسط کارایی اقتصادی در هر دو حالت بازده ثابت و متغیر نسبت به مقیاس به ترتیب برابر با 71 و92 درصد می‌باشد. همچنین میانگین کارایی زیست‌محیطی با استفاده از روش تحلیل پوششی داده‌ها 88 درصد بدست آمد. نتایج آزمون‌ها‌ی ریشه واحد نشان داد که متغیرهای مورد بررسی با یکبار تفاضل‌گیری مانا هستند. نتایج حاصل از علیت تودا-یاماموتو بیانگر رابطه‌ی علی یکطرفه از کارایی زیست‌محیطی به سمت کارایی اقتصادی است. بررسی رابطه تعادلی بلند مدت بیانگر آن است که به ازای بهبود یک درصد در کارایی زیست‌محیطی، مقدارکارایی اقتصادی 63/0 درصد افزایش می‌یابد.
 
نتیجه‌گیری: با توجه به یافته‌ها‌ی تحقیق انتظار می‌رود با اﺟﺮای ﻣﻘﺮرات زﯾﺴﺖ ﻣﺤﯿﻄﯽ ﮐﺎراﯾﯽ زیست‌محیطی نیز بهبود ­یابد. این امر ﻣﻨﺠﺮ ﺑﻪ ﺗﻮﺳﻌﻪ ﻓﻨﺎوری و افزایش ﺑﻬﺮه­وری از ﻣﻨﺎﺑﻊ شود ﮐﻪ در ﻧﺘﯿﺠﻪ آن ﮐﺎراﯾﯽ اﻗﺘﺼﺎدی بخش کشاورزی ایران بهبود می­یابد.
 

کلیدواژه‌ها

عنوان مقاله [English]

Evaluating the Relationship between Economic and Environmental Efficiency in Iranian Agriculture Sector

نویسندگان [English]

  • Ghader Dashti
  • Zahra Mohammadpour
  • Mohammad Ghahremanzadeh
چکیده [English]

Background and Objective: The goal of this study is to evaluate the relationship between economic efficiency and environmental efficiency in Iranian agriculture sector.
 
Materials and Methods: For this purpose, Data Envelopment Analysis (DEA) and Toda-Yamamoto causality testing methods were used. The required data for this research were collected from the statistical Center of Iran, Central Bank as well as the Ministry of Energy during 1996-2017.
 
Results: The results showed that mean values of economic efficiency either in constant or in variable returns to scale are 71% and 92%, respectively. The average environmental efficiency using DEA was also calculated as 88%. The results of the ADF and KPSS unit root testing methods revealed that the studied variables are stationary in one-time difference. The results of the Toda-Yamamoto causality test showed a one-way causal relationship from environmental to economic efficiency. Assessing the long run equilibrium equation demonstrated that economic efficiency was increased about 0.63% in increment of environmental efficiency by 1%.
 
Conclusion: According to the findings, it is expected to be improved the environmental efficiency with application of environmental laws. This is caused to be developed technology and to be growth total factor productivity which leads to be improved the economic efficiency of Iranian agriculture sector.
 

کلیدواژه‌ها [English]

  • Data Envelopment Analysis
  • Causality
  • Economic Efficiency
  • Environmental Efficiency

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دانش کشاورزی وتولید پایدار
دوره 30، شماره 4
دی 1399
صفحه 199-211

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