Impact of the alternate wetting and drying (AWD) water-saving irrigation technique: Evidence from rice producers in the Philippines
This article evaluates the impacts of a controlled irrigation technique in rice production called alternate wetting and drying (AWD). Propensity score matching (PSM) and regression-based approaches applied to farm-level survey data are used to achieve the objective of the study. The PSM and regression-based approach accounts for the potential bias due to selection problems from observable variables. Results of the impact analysis using both empirical approaches indicate that AWD, particularly the "Safe AWD" variant, reduces the hours of irrigation use (by about 38%), without a statistically significant reduction in yields and profits. This reduction in irrigation time translates to corresponding savings in the amount of irrigation water and pumping energy used. However, further analysis of the impact estimates suggests that the potential magnitude of the selection bias based on unobservable variables may still be able to eliminate the measured impact from the PSM and regression-based techniques that only control for selection based on observable variables. Hence, the current impact results have to be interpreted with caution and further data collection is needed to construct a panel data that would allow one to account for selection problems due to unobservable variables and, consequently, better estimate the AWD impact.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Joseph G. Altonji & Todd E. Elder & Christopher R. Taber, 2000.
"Selection on Observed and Unobserved Variables: Assessing the Effectiveness of Catholic Schools,"
NBER Working Papers
7831, National Bureau of Economic Research, Inc.
- Joseph G. Altonji & Todd E. Elder & Christopher R. Taber, 2005. "Selection on Observed and Unobserved Variables: Assessing the Effectiveness of Catholic Schools," Journal of Political Economy, University of Chicago Press, vol. 113(1), pages 151-184, February.
- Cabangon, R. J. & Castillo, E. G. & Lu, G. & Cui, Y. L. & Tuong, T. P. & Bouman, B. A. M. & Li, Y. & Chen, C. & Wang, J. & Liu, X., 2001. "Impact of alternate wetting and drying irrigation on rice growth and resource-use efficiency," Conference Papers h027863, International Water Management Institute.
- Phoebe Koundouri & Céline Nauges & Vangelis Tzouvelekas, 2006. "Technology Adoption under Production Uncertainty: Theory and Application to Irrigation Technology," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(3), pages 657-670.
- Blanke, Amelia & Rozelle, Scott & Lohmar, Bryan & Wang, Jinxia & Huang, Jikun, 2005. "Rural Water Saving Technology Adoption in Northern China: An Analysis of Survey Data," 2005 Annual meeting, July 24-27, Providence, RI 19437, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Pagan,Adrian & Ullah,Aman, 1999.
Cambridge University Press, number 9780521355643, June.
- Godtland, Erin & Sadoulet, Elisabeth & de Janvry, Alain & Murgai, Rinku & Ortiz, Oscar, 2003.
"The impact of farmer-field-schools on knowledge and productivity : a study of potato farmers in the Peruvian Andes,"
CUDARE Working Paper Series
963, University of California at Berkeley, Department of Agricultural and Resource Economics and Policy.
- Godtland, Erin M & Sadoulet, Elisabeth & De Janvry, Alain & Murgai, Rinku & Ortiz, Oscar, 2004. "The Impact of Farmer Field Schools on Knowledge and Productivity: A Study of Potato Farmers in the Peruvian Andes," Economic Development and Cultural Change, University of Chicago Press, vol. 53(1), pages 63-92, October.
- Godtland, Erin & Sadoulet, Elisabeth & de Janvry, Alain & Murgai, Rinku & Ortiz, Oscar, 2003. "The Impact of Farmer-Field-Schools on Knowledge and Productivity: A Study of Potato Farmers in the Peruvian Andes," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt8hp835xx, Department of Agricultural & Resource Economics, UC Berkeley.
- Abdulai, Awudu & Glauben, Thomas & Herzfeld, Thomas & Zhou, Shudong, 2005. "Water Saving Technology in Chinese Rice Production - Evidence from Survey Data," 2005 International Congress, August 23-27, 2005, Copenhagen, Denmark 24708, European Association of Agricultural Economists.
- Jeffrey M. Peterson & Ya Ding, 2005. "Economic Adjustments to Groundwater Depletion in the High Plains: Do Water-Saving Irrigation Systems Save Water?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(1), pages 147-159.
- Anderson, David P. & Wilson, Paul N. & Thompson, Gary D., 1999. "The Adoption And Diffusion Of Level Fields And Basins," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 24(01), July.
- Sascha O. Becker & Andrea Ichino, 2002. "Estimation of average treatment effects based on propensity scores," Stata Journal, StataCorp LP, vol. 2(4), pages 358-377, November.
- Tabbal, D. F. & Bouman, B. A. M. & Bhuiyan, S. I. & Sibayan, E. B. & Sattar, M. A., 2002. "On-farm strategies for reducing water input in irrigated rice; case studies in the Philippines," Agricultural Water Management, Elsevier, vol. 56(2), pages 93-112, July.
- Bouman, B. A. M. & Tuong, T. P., 2001. "Field water management to save water and increase its productivity in irrigated lowland rice," Agricultural Water Management, Elsevier, vol. 49(1), pages 11-30, July.
When requesting a correction, please mention this item's handle: RePEc:eee:jfpoli:v:36:y:2011:i:2:p:280-288. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei)
If references are entirely missing, you can add them using this form.