Hiệu quả kinh tế của sản xuất lúa trong mô hình lúa - tôm tại tỉnh Kiên Giang: tiếp cận từ phân tích hiệu quả kĩ thuật và phân bổ

Abstract

Optimizing rice production in the important rice-shrimp model in the Mekong Delta, especially in Kien Giang, is facing challenges due to inefficient resource allocation. This study investigated allocative efficiency, technical, economic, and input factors affecting rice production in the rice-shrimp rotation model here by surveying 198 households in An Bien and An Minh districts in 2021 and analyzed using a production function to estimate the relationship between input factors and rice yield. The estimation results from the production function identified a number of input factors that significantly affect rice production, such as: the amount of rice seeds, the amount of inorganic fertilizers, organic fertilizers, and labor. There is a large difference between technical efficiency and economic efficiency, reflecting the fact that resources are not being allocated optimally. The average economic efficiency of households was only 62.1%, showing the potential to save up to 37.9% of current input costs while maintaining the same output level. Although direct profits from rice cultivation are not high, rice still plays a major role in contributing to increasing productivity and shrimp farming profits, thereby promoting the maintenance of rice-shrimp rotation. It is recommended that farmers readjust the structure and dosage of input factors to improve economic efficiency and maximize profits. Management and extension agencies should increase technical training on more efficient rice production processes in the rice-shrimp rotation model.