اثرات اقتصادی سدسازی در ایران

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار اقتصاد، دانشکده مدیریت و اقتصاد، دانشگاه صنعتی شریف

2 گروه اقتصاد، دانشکده مدیریت و اقتصاد، دانشگاه صنعتی شریف

چکیده

در این مقاله اثرات سدهای بزرگی که در طی سال‌های ۱۳۷۱ تا ۱۳۹۳ در ایران ساخته شده‌اند، بر کشاورزی و رفاه مردم مناطق مجاور و پایین‌دست بررسی می‌شود. برای پاسخ به این سؤال از روش حداقل مربعات معمولی استفاده ‌شده و کنترل‌های جغرافیایی و بارش برای تخمین دقیق‌تر اثر سد بر کشاورزی و رفاه مورد توجه قرار گرفته است. نتایج تحقیق حاضر نشان می‌دهد سدسازی بازده کشاورزی، ارزش تولیدات و سطح زیر کشت محصولات آبی را در شهرستانی که سد در آن واقع شده است افزایش می‌دهد، اما در شهرستان پایین‌دست اثری ندارد. همچنین سدسازی منجر به کشت بیشتر محصولات آب‌بر در مقابل محصولات کم‌آب‌بر در شهرستان محل سد می‌شود که این اثر در شهرستان پایین‌دست معکوس است. برای بررسی اثرات رفاهی، هزینه سرانه خانوار بررسی می‌شود. هزینه‌ی سرانه‌ی روستایی در پایین‌دست سد کاهش می‌یابد، اما هزینه‌ی سرانه‌ی شهرستانی که سد در آن ناحیه ساخته ‌شده ‌است، چه در شهر و چه در روستا تغییری نمی‌کند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Economic Impact of Dams in Iran

نویسندگان [English]

  • Mohammad Vesal 1
  • Mohammad Saeed Tajrishy 2
1 Assistant Professor of Economics, Graduate School of Management and Economics, Sharif University of Technology
2 Department of Economics, Graduate School of Management and Economics, Sharif University of Technology
چکیده [English]

The economic effects of large dams that were constructed during recent two decades in Iran are explored in this paper and their effects on agriculture and welfare of their own district and downstream districts are analyzed. Ordinary least squares (OLS) method is used to investigate these effects and for more accurate results, we control for geographical variables and rainfall. The results of this study show that dam construction leads to higher agricultural yield, production value and irrigated area in dam’s own district; but it doesn’t affect yield, production and irrigated area in downstream districts. Also dam construction results in planting more water-intensive crops in their own district and less water-intensive crops in downstream districts. In addition, per capita expenditures in rural regions of downstream districts decrease in response to dam construction in upstream districts, but urban regions of the downstream district and also urban and rural regions of their own district are not influenced by dam construction.

کلیدواژه‌ها [English]

  • Dam construction
  • infrastructure
  • Agriculture
  • Development
  • Iran
Aschauer DA (1989) Is public expenditure productive? Journal of Monetary Economics 23(2):177-200‏

Blanc E and Strobl E (2014) Is small better? A comparison of the effect of large and small dams on cropland productivity in South Africa. The World Bank Economic Review 28(3):545-576

Calderon C and Servén L (2004) The effects of infrastructure development on growth and income distribution (No. 3400). World Bank Policy, Research Working, Paper No. 3400

Chakravarty A (2010) Dams and infant mortality in Africa. Working paper, University College London‏

Dinkelman T (2011) The effects of rural electrification on employment: New evidence from South Africa. The American Economic Review 3078-3108‏

Donaldson D (2010) Railroads of the Raj: Estimating the impact of transportation infrastructure (No. w16487). National Bureau of Economic Research, Paper No. 16487

Duflo E and Pande R (2007) Dams. The Quarterly Journal of Economics 122(2):601-646‏

Ersado L (2005) Small-scale irrigation dams, agricultural production, and health: theory and evidence from Ethiopia. World Bank Policy, Research Working, Paper No. 3494

Farajzade M andRostamzade H (2007) Evaluation of large dams’ effects on changing lands’ use: Sattarkhan Dam. Journal of Humanitarian Science 47-66 (In Persian)

Jensen R (2007) The digital provide: Information (technology), market performance, and welfare in the South Indian fisheries sector. The Quarterly Journal of Economics 879-924‏

Kalantari N, Rahimi M, and Samani S (2012) The qualitative effect of Karkheh dam on Avan plain aquifer in Dezful in Khuzestan province. Journal of Iran-Water Resources Research 8(1):1-9 (In Persian)

Malekhosseini A, Mirakzade A (2014) Evaluating Soleimanshah’s dam’s social impact on near rural areas. Journal of Rural Research 589-610 (In Persian)

Munnell AH and Cook LM (1990) How does public infrastructure affect regional economic performance?. New England Economic Review (Sep):11-33

Najafi H, Ahmadian M (2014) Economic evaluation of water allocation for agricultural use in Varamin:case study of Latian Dam. Journal of Iran’s Practical Economic Studies 151-167(In Persian)

Nazeri M and Shahidi A (2017) Evaluation of Gotvand Dam construction impacts on time series variability of water quality parameters. Journal of Iran-Water Resources Research 13(3):175-180 (In Persian)

Rezapour M (2016) Multi-scale entropy analysis to assess impacts of dam construction on aquifer, case study: Saveh Plain. Journal of Iran-Water Resources Research 12(1):145-157 (In Persian)

Strobl E and Strobl RO (2011) The distributional impact of large dams: Evidence from cropland productivity in Africa. Journal of Development Economics 96(2):432-450‏

Teruel RG and Kuroda Y (2005) Public infrastructure and productivity growth in Philippine agriculture, 1974-2000. Journal of Asian Economics 16(3):555-