Estimated Demand and Economic Value of Water in Production of Forage Sorghum in Sistan

Subject Areas : Agricultural Economics Research

حلیمه Piri ¹ , ملیحه Heidari ²

1 - استادیار گروه مهندسی آب دانشکده آب و خاک دانشگاه زابل
2 - دانش‌آموخته کارشناسی ارشد اقتصاد مالی

Received: 2017-04-20 Accepted : 2018-05-30 Published : 2018-06-22

Keywords: Own price Elasticity, Shadow Water Price, Flexible and Inflexible Functions,

Abstract :

    Reform of pricing system based on the economic value of water in agriculture is one of the most efficient tools of demand management which leads to set the pattern of water used ..The aim of this study is the to determine the economic value of agricultural water using production function approach for sorghum in Sistan area in 2015.To determine the economic value of water, flexible and inflexible functions were used. Based on the results, a Cobb-Douglas function was selected to estimate water demand. The price elasticity of derived demand water was 2.25 which showed that price policy could be an important factor in the control of non-optimum use of water. Final production efficiency was 0.3 and economic value of water was 450 Rials per cubic meter of water which was 44.5 percent less than current water charges. Therefore, it was suggested that by gradually eliminating the difference in prices, the value of water would be closer to its price.

References:

- Al-Karabliehk, E. Salman, Z. A. Al-Omari, S. A. Wolf, H. Al-Assad, A. T. Hunaiti, A. D. & Subah, M. A. (2012). Estimation of the economic value of irrigation waterin jordan. Agriculture Science and Technology. B2: 487-497.

 - Chalfant, J.A. (1984). Comparison of alternative functional forms with application to agricultural input data. American Journal of Agricultural Economics, 66: 216-220.

- Gojarati, D. N. ( 2002). Basic Econometrics, 4^th Editions, publish by Tata McGraw-Hill.

- Huang, Q. Rozelle, S. & Howitt, R.( 2008). The efficient use of data in estimating production technology: Trading off precision and heterogeneity. Working papers, Department of applied economics, University of Minnesota.

- Jurado, A. M. Ortega, M. J. Ruto, E. & Berbel, J. (2012). The economic value of guaranteed water supply for irrigation under scarcity conditions. Agricultural water Management. 113:10-18.