Theoretical and empirical frameworks for measuring environmental efficiency in agricultural production: A case study of shrimp farming in transforming areas of Kien Giang province

Abstract

Environmental efficiency is one of the key aspects that determine the sustainability of agricultural production models. Thus, accurate measurement of this indicator by econometric model plays an important role in policy recommendations. The paper introduces an approach to measure environmental efficiency by using the stochastic frontier analysis (SFA). Environmental efficiency measured by SFA method reflects the possibility of reducing environmentally detrimental inputs while keeping normal inputs and output constant. By using the data set of 67 intensive shrimp farmers in Kien Giang province, the results show that the average environmental efficiency was 52.79%, indicating that farmers have not used the environmentally detrimental inputs efficiently, or in other words the farmers could reduce about 47.21% of the total inputs feed, medicine and fuel. The results also show that there was a significant difference in environmental performance among shrimp farmers in the study sites.

Keywords

• hiệu quả kỹ thuật
• hiệu quả môi trường
• những đầu vào có ảnh hưởng xấu đến môi trường
• nuôi tôm