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Asian Journal of Agriculture and Development (AJAD) - Call for papers!

Farm-level economic impact of ecologically-based rodent management in an intensive irrigated rice system: The case study of rice farming in the Mekong River Delta, Vietnam

(Vietnam), Doctor of Philosophy in Agricultural Economics (University of the Philippines Los Baños)

Dissertation Abstract:

Using panel data from 221 sample rice farmers in An Giang Province, Mekong River Delta, Vietnam, a comparison of means (t-test) and regression-based strategies along with propensity score matching (PSM) method were employed to assess the impact of ecologically-based rodent management (EBRM) technology and its components on rice yield and net income of the rice farmer-beneficiaries of this technology. In addition, the study also determined the effects of the EBRM technology and its components on technical, allocative, and economic efficiency of rice farmers in the Mekong River Delta for the period 2006–2009 using stochastic frontier analysis with the PSM method.
 
Results showed that the adoption of the EBRM technology and its components had a significant and positive impact on rice yield; real net income; and technical, allocative, and economic efficiency. The contributions of the EBRM technology to incremental paddy yield; real net income; and technical, allocative, and economic efficiency were approximately 0.58–0.60 ton/ha; VND 1.50–1.57 million/ha; and 10.5 percent, 0.7 percent, and 10.1 percent, respectively. Moreover, the mean effects of the community action component on paddy yield; real net income; and technical, allocative, and economic efficiency of its beneficiaries were approximately 0.43–0.45 ton/ha; VND 1.16–1.19 million/ha; and 8.9 percent, 0.5 percent, and 8.9 percent, respectively. The study also found that the community trap barrier system (CTBS) plus community action component had significant contribution to the increase in paddy yield; real net income; and technical, allocative, and economic efficiency of the farmer-beneficiaries by approximately 0.70–0.72 ton/ha; VND 1.77–1.80 million/ha; and 12.3 percent, 0.7 percent, and 11.7 percent, respectively. These findings implied that the adoption of the EBRM technology and its components may have partly contributed to food security and household income of rice farmers in these communities.