A study on technical efficiency of rice production in the Mekong delta-Vietnam by stochastic frontier analysis
The Mekong Delta plays a very important role in the rice production sector of Vietnam. However, income of rice grower in the Mekong Delta and Vietnam as well is still very low. Finding out the way to increase the efficiency of rice production in order to improve income for farmers and to enhance the...
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Veröffentlicht in: | Journal of the Faculty of Agriculture, Kyushu University Kyushu University, 2003-10, Vol.48 (1-2), p.325-357 |
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Sprache: | eng |
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Zusammenfassung: | The Mekong Delta plays a very important role in the rice production sector of Vietnam. However, income of rice grower in the Mekong Delta and Vietnam as well is still very low. Finding out the way to increase the efficiency of rice production in order to improve income for farmers and to enhance the comparative advantage of Vietnam's rice industry has become the most crucial issue. A stochastic frontier production function incorporating a model for technical inefficiency effects (Battese and Coelli, 1995) is applied to field survey data on 120 paddy farmers of the Mekong Delta. We could infer that there exists difference in the level of technical efficiency across season and the size of operational holding as well in paddy fainting in the Mekong Delta. The mean technical efficiencies of 86.23%, 79.55% and 80.24% were achieved by 'paddy farms in winter-spring, spring-summer and summer-autumn, respectively in the Mekong Delta showing the scope for increasing paddy production by 13.8%, 20.45% and 19.76% with the present tech-nology itself. Regarding to variables affecting stochastic frontier, it was found that quantity of seed, active nitrogen and expense for pesticide had negative impact on the rice yield. On the other hand quantity of active phosphate and potassium and expense for hired machine have positive impact on rice yield. However those inputs were all allocated inefficiently. The technical inefficiency effects in the stochastic models are found to be statistically significant, dummy variables of land size, rice variety use, IPM adoption and sowing technique 'together with availability of credit are found to have positive impact on technical efficiency. The average yield loss due to technical inefficiency was relatively high with 727.03 and 705.93 kg per hectare in winter-spring and summer-autumn crops respectively and farmers who operate with farm size of 1-3 hectare could achieve highest efficiency and lowest yield loss. These results may help agricultural policy makers formulate strategies. |
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ISSN: | 0023-6152 |
DOI: | 10.5109/4553 |