Determinants of technical efficiency of freshwater prawn farmingin southwestern Bangladesh

摘要

This paper estimates a translog stochastic production function to examine the determinants of technical efficiency of freshwater prawn farming in Bangladesh. Primary data has been collected using random sampling from 90 farmers of three villages in southwestern Bangladesh. Prawn farming displayed much variability in technical efficiency ranging from 9.50 to 99.94% with mean technical efficiency of 65 %, which suggested a substantial 35 % of potential output can be recovered by removing inefficiency. Fora land scarce country like Bangladesh this gain could help increase income and ensure better livelihood for the farmers. Based on the translog production function specification, farmers could be made scale efficient by providing more input to produce more output. The results suggest that farmers' education and non-farm income significantly improve efficiency whilst farmers' training, farm distance from the water canal and involvement in fish farm associations reduces efficiency. Hence, the study proposes strategics such as less involvement in farming-related associations and raising the effective training facilities of the farmers as beneficial adjustments for reducing inefficiency. Moreover, the key policy implication of the analysis is that investment in primary education would greatly improve technical efficiency.