نوع مقاله : مقالات پژوهشی

نویسندگان

دانشگاه کشاورزی و منابع طبیعی رامین خوزستان

چکیده

یکی از مهم­ترین زنجیره­های غذایی کشور که نقش مهمی در امنیت غذایی جامعه دارد، زنجیره تأمین نان می­باشد. تولید گندم به عنوان حلقه آغازین این زنجیره نقش مهمی در بهبود عملکرد آن دارد. همچنین گندم یکی از محصولات استراتژیک کشور بوده است که از نظر ارزش غذایی، دارای اهمیت بسیار بالایی بوده و از مهم­ترین و پرمصرف­ترین محصولات کشاورزی می­باشد. اما طی چند دهه گذشته از یک طرف به دلیل شرایط اقلیمی و خشک‌سالی­های پیاپی و از طرف دیگر، به دلیل برخی سیاست­ها، تولید این محصول با نوسانات و ریسک زیادی مواجهه شده که منجر به اختلالاتی در زنجیره تأمین نان گردیده است. لذا این مطالعه به تحلیل عوامل مؤثر بر ریسک تولید گندم در زنجیره تأمین نان پرداخته است. داده‌های مورد استفاده، مربوط به دوره زمانی 1393-1361 می‌باشد. برای شناسایی عوامل مؤثر بر ریسک تولید گندم، ابتدا با استفاده از یک مدل GARCH(2,0)، واریانس تولید گندم به عنوان معیار ریسک تعیین گردید. با توجه به انباشتگی متغیرها از مرتبه صفر و یک، از یک مدل ARDL برای شناسایی عوامل مؤثر بر ریسک استفاده گردید. نتایج مطالعه نشان داد که متغیرهای جمعیت، واردات گندم، بارندگی و سطح زیرکشت در جهت مثبت و متغیرهای قیمت تضمینی و طرح محوری گندم در جهت منفی واریانس تولید گندم (ریسک تولید گندم) را متأثر می­نمایند. لذا پیشنهاد می­شود ضمن استمرار قیمت تضمینی گندم، از طرح­هایی نظیر طرح محوری که موجبات کاهش ریسک تولید گندم را فراهم می­آورند، حمایت به عمل آمده و در جهت بهبود سیاست­هایی مثل واردات گندم یا تعیین بهینه سطح زیرکشت اقدام نمود. همچنین با توجه به انگیزه پایین بخش خصوصی برای بیمه محصولات کشاورزی، بایستی دولت با افزایش سهم خود در پرداخت حق بیمه و همچنین اعطای خسارت، موجبات تمایل بیشتر گندم‌کاران به بیمه محصول را فراهم نماید.

کلیدواژه‌ها

عنوان مقاله [English]

Analyzing Factors Affecting Wheat Production Risk in Iran

نویسندگان [English]

  • A. Hashemi Nejad
  • A. Abdeshahi
  • M. Ghanian
  • B. Khosravipour

Ramin Agriculture & Natural Resources University of Khuzestan

چکیده [English]

Introduction: One of the most important challenges facing the world is how to feed expected population by 2050. Despite trying to increase food production over the past half-century, food security has been a strategic issue and an important goal of agricultural policies in many countries by challenges including population grow, increasing demand, natural resources erosion, etc. One of the critical dimensions in achieving food security is expanding food supply chain. A food supply chain can be defined as a set of interdependent components include of input supply, production, storage, processing, marketing, distribution and consumption or as the activities from ‘farm to fork’. Bread supply chain in Iran, is one of the most important food supply chain because bread is considered as the most important food source and is staple food of choice, so it has a special place in household’s nutrition pattern that supply 46.2% and 59.3% of energy for urban and rural people. Also, wheat is the raw material of bread and one of the strategic and critical crops in Iran agriculture. More than 80% of wheat consumption in Iran is predominantly used for bread. Wheat is the staple food of the national diet of Iranian households, who draw, on average, 47% of their daily calorie from wheat products. Although the population of Iran is nearly 1% of world population, it consumes roughly 2.5% of wheat produced worldwide. But, wheat is exposed to different kinds of risks such as natural disasters, including environmental concerns and climate change, pests and diseases, market vacillations and government policy that affect bread supply chain performance. So, the objective of this study is to explore factors affecting wheat production risk in bread supply chain.
Materials and Methods: In this study regression analysis was used to determine the effects of variables on wheat production risk. The used data was time series for  wheat production, wheat guarantee price, harvested area, rainfall, temperature, wheat axial plan, seed consumption, wheat import and export variables during 1982-2014. In order to explore factors affecting wheat production risk, at first wheat production variance as the risk criterion was estimated by ARCH (2) Model. The used data in the study was time series and therefore applying Ordinary Least Squares method in estimating regression equation would lead to pseudo regression. Since based on Augmented Dicky-Fuller method, variables were combination of I (0) and I (1), therefore Autoregressive Distributed Lag Model has been used to determine short run and long run relationship.
Results and Discussion: Results revealed that wheat production risk was affected by population, wheat imports, rainfall, wheat guaranteed prices, harvested area and wheat axial plan variables which population, import, rainfall, harvested area had a positive effect and guaranteed price and wheat axle plan had a negative effect on wheat production risk. Therefore increasing population growth, import, rainfall and harvested area would lead to risk increase while increasing price and the implementation of wheat axis plan would reduce wheat production risk. So, increasing population and consumption, have also increased wheat import in recent years. While wheat import have reduced domestic production and farmers' incentives that would lead to increased wheat production risk. The tools used by governments for increasing domestic production against wheat import and increasing producer’s incentives are guaranteed price and wheat axial plan. Another effective cause of wheat production risk was climate changes and extreme weather events. Farmers’ economic profit was influenced severely and even determined by climate changes and weather events. Also, during this period, wheat harvested area had nearly doubled. This growing trend has also increased the risk of wheat production.
Conclusion: wheat is a strategic crops in Iran. So, it is necessary to reduce its production risk. Wheat production risk was reduced by applying weather-based crop insurance scheme, sustaining the guaranteed price of wheat, supporting plans such as wheat axial plan, improving policies such as wheat imports and optimizing harvested area.

کلیدواژه‌ها [English]

  • Food security
  • Wheat production
  • Supply chain
  • Risk
1- Abonoori A., and Khanalipour A. 2009. Do uncertainty about the volatility of petroleum price affect its supply? Applied from GARCH and ARDL. Economic Research 91: 2-19. (In Persian with English abstract)
2- Ahmed G., Hamrick D., Guinn A., Abdulsamad A., and Gereffi G. 2013. Wheat Value Chains and Food Security in the Middle East and North Africa Region. Center on Globalization, Governance and Competitiveness, Duke University.
3- Ahmadvand M., and Najafpour Z. 2010. Study of the area harvested, production and supportive policies of wheat during the first to fourth development plans. Quarterly Journal of Economic Research and Policy 18(53): 59-76. (In Persian with English abstract)
4- Aimin H. 2010. Uncertainty, Risk Aversion and Risk Management in. Agriculture and Agricultural Science Procedia 1: 152-156.
5- Amid J. 2007. The dilemma of cheap food and self-sufficiency: The case of wheat in Iran. Food Policy 32: 537–552.
6- Azizi Gh., and Yarahmadi D. 2003. Investigating the relationship between climatic parameters and wheat yield using regression model (case study: Silakhor plain), Quarterly Journal Geographic Research 44: 23-29. (In Persian with English abstract)
7- Bagheri R., Bagheri Z., and Saeadi Z. 2011. Design and deployment of the supply and distribution management system of basic goods by the private sector. Technology research center of Sharif University, center of crops research, national project number: 88038. (In Persian with English abstract)
8- Chand S., Kamal Sh., and Ali I. 2012. Modeling and volatility analysis of share prices using ARCH and GARCH models. World Applied Sciences Journal 19(1): 77-82.
9- Cheraghian Fard S., Mousavi SA., Cheraghian Fard M., and Mohamadi T. 2015. Knowledge, and practice on baking soda usage of people living in the Mirabeh village with an environmental and healthy approach, Kermanshah, Iran. Indian Journal of Natural Sciences 5(30): 6785- 6789.
10- Crone M. 2006. Are global supply chains too risky? A practitioner's perspective. Supply Chain Management Review 10(4): 28-35.
11- Deep A., and Dani S. 2009. Managing Global Food Supply Chain Risks: A Scenario Planning Perspective. POMS 20th Annual Conference.
12- Enders W. 2007. Applied econometrics time series. Translator: Mehdi Sadeghi and Saeed Shalalpour, Tehran: Imam Sadiq University Press, 1st edition. (In Persian with English abstract)
13- FAO. 2011. FAO in the 21st century. Food and Agriculture Organization of the United Nations: Rome, Italy.
14- FAO. 2012. Food Insecurity in the World. Food and Agriculture Organisation of the United Nations: Rome, Italy.
15- FAO. 2016. Agriculture and food insecurity risk management in Africa, Food and Agriculture Organization of the United Nations: Rome, Italy.
16- Farajzadeh Asl M., Kashki A., and Shayan S. 2009. Analysis of viability of irrigated wheat yield by climatic change approach (Khorasan Razavi). Quarterly Journal. Human Saience Teacher 13(3): 256-266. (In Persian with English abstract)
17- Farhangfar S., Bannayan M., Khazaei H.R., and Mousavi Baygi M. 2015.Vulnerability assessment of wheat and maize production affected by drought and climate change, International Journal of Disaster Risk Reduction 13: 37-51.
18- Fatemi Amin R., and Mortezaie A. 2013. Strategic program of food supply chain. Shahid Beheshti University, Tehran, Iran. (In Persian with English abstract)
19- Godfray C., Beddington JR., Crute I.R., Haddad L., Lawrence D., Muir JF., Pretty J., Robinson S., Thomas SM., and Toulmin C. 2010. Food security: the challenge of feeding 9 billion people, Science 327: 812–818.
20- Jaffee S., Siegel P., and Andrews C. 2008. Rapid agricultural supply chain risk assessment: a conceptual framework. Agriculture and Rural Development Discussion Paper 47, the World Bank.
21- Jones D., and Kwiecinski A. 2010. Policy Responces in Emerging Economies to International Agricultural Commodity Price Surges. OECD Food, Agriculture and Fisheries Working Papers, No. 34, OECD Publishing.
22- Kahan D. 2013. Managing risk in farming. Food and Agriculture Organization, Rome, Italy.
23- Khaledi K., and Faryadras V. 2011. Simulation of food security based on production sources and trade policies changes. Agricultural Economics 5(1): 61-79. (In Persian with English abstract)
24- Keshavaez Hadad Gh.R. 2015. Financial econometrics times series. Tehran: Ney Publications, First Edition.
25- Kohansal M.R., and Farsi Aliabadi M.M. 2014. Impact of technological change on wheat production risk in northwest of Iran. International Journal of Agricultural Science Technology 2(1): 17-21.
26- Leat P., and Revoredo-Giha C. 2013. Risk and resilience in agri-food supply chains: the case of the ASDA PorkLink supply chain in Scotland. Supply Chain Management: An International Journal 18(2): 219–231.
27- Maddah V., Soltani A., Zeinali E., and Bannayan-Aval M. 2015. Simulating climate change impacts on wheat production in Gorgan, Iran. Bulletin of Environment, Pharmacology and Life Sciences 4(4): 58- 67.
28- Mehri M., Eshraqi F., and Keramatzadeh A. 2016. Investigating factors affecting on management approaches wheat production risk. The Fourth International Conference on New Ideas in Agriculture, Environment and Tourism. Tehran, Iran.
29- Mohammadi M., and Karimizadeh R. 2012. Insight into heat tolerance and grain yield improvement in wheat in warm rainfed regions of Iran. Crop Breeding Journal 2(1): 1-8. (In Persian with English abstract)
30- Mollasadeghi V., Gharib Eshghi A., Shahryari R., and Elyasi S. 2013. Evaluation of tolerant and susceptible bread wheat genotypes under drought stress conditions. International Journal of Farming and Allied Sciences 2(24): 1159-1164.
31- Mosaedi A., and Kaheh M. 2008. Effect of rainfall on wheat and barley yield in Golestan province. Journal of Agricultural Science and Natural Resources 15(4): 206-218.
32- Musa S.N. 2012. Supply Chain Risk Management: Identification, Evaluation and Mitigation Techniques. Linköping Studies in Science and Technology, Dissertations, No. 1459.
33- Najafi Alamdarlou H., Riyahi F., and Vakilpour M.H. 2016. Effects of prevention of wheat arrival on the flow of virtual water trade. Journal of Iranian Applied Economics 5(20): 63-79.
34- Najafi Alamdarlou H., Riyahi F., and Vakilpour M.H. 2016. Investigating the effect of price support and yield risk on wheat production in Iran. The second international and the fifth national conference of IRANs environmental and agricultural researches. 3 March. Tehran, Iran.
35- Nassiri M., Koocheki A., Kamali G.A., and Shahandeh H. 2006. Potential impact of climate change on rainfed wheat production in Iran. Archives of Agronomy and Soil Science 52(1): 113-124.
36- Noferesti M. 1999. Unit root and accumulation in econometrics, Tehran: Rasa Institute Publications, First Edition.
37- Organization of Agricultural–Jihad. 2015. Area harvested wheat report.
38- Opara L.U. 2003. Traceability in agriculture and food supply chain: A review of basic concepts, technological implications, and future prospects. Food, Agriculture & Environment 1(1): 101-106.
39- Paulson U. 2005. Developing a supply chain flow risk model. NOFOMA 2005 Conference, Copenhagen, 9-10 June 2005.
40- Peck H. 2006. Reconciling supply chain vulnerability, risk and supply chain management. International Journal of Logistics: Research and Application 9(2): 127-142.
41- Pesaran M.H., and Shin Y. 1996. Co-integration and speed of convergence to equilibrium, Journal of Econometrics 71: 43-117.
42- Shahnoushi Foroushani N., Abolhasani L., Dourandish A., Taherpour H., Nemat Elahi Z., and Yousefzadeh S. 2014. Investigating the effects of law of purposefulness of subsidies in the wheat, flour, and bread chain. Research project of Ferdowsi university of Mashhad, Research Center of Crops, code: 7837-118991. (In Persian with English abstract)
43- Sharif M. 2004. Investigating the effects of wheat price on its production in Iran. Journal of Agricultural Economics and Development 12(46): 159-189. (In Persian with English abstract)
44- Sookhtanlo M., and Sarani V. 2011. Analysis of factors affecting on risk management of wheat production among wheat farmers. Agris on- line papers in Economics and Informatics 3(4): 3-11.
45- Spekman R.E., and Davis E.W. 2004. Risky business: expanding the discussion on risk and the extended enterprise. International Journal of Physical Distribution and Logistics Management 34(5): 414-433.
46- Torkamani J., and Shajari Sh. 2007. Adoption of agricultural technology under production risk: A case study of wheat in Fars province. Journal of Water and Soil Science 10(4): 489-502.
47- Valizadeh J., Ziaei S.M., and Mazloumzadeh S.M. 2014. Assessing climate change impacts on wheat production (a case study). Journal of the Saudi Society of Agricultural Sciences 13: 107-115.
48- Yan X., Hui S., and Wangmei Y. 2009. Research on the Source and Management of Supply Chain Risk. Logistics Engineering and Management 31(4): 58-61.
49- Walport M. 2013. Global Food Security Strategic Plan 2011-2016.Available at: www.foodsecurity.ac.uk
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