NDLI: Diversification economies and efficiencies in a ‘blue-green revolution’ combination: a case study of prawn-carp-rice farming in the ‘gher’ system in Bangladesh

Content Provider	Springer Nature Link
Author	Rahman, Sanzidur Barmon, Basanta K. Ahmed, Nesar
Copyright Year	2010
Abstract	‘Gher’ farming is a unique system that incorporates the joint operation of three enterprises: freshwater prawn, fish and HYV rice and is expanding rapidly in the coastal regions of Bangladesh. In this paper we evaluate the performance of this unique system in terms of the existence of diversification economies (amongst the three integrated enterprises), scale economies and technical efficiency using a stochastic input distance function approach on a sample of gher farmers. The results reveal evidence of a diversification economy in the rice–carp combination. Economies of scale exist in the ‘gher’ farming system. The level of technical efficiency is estimated at 68% implying that a substantial 47% [(100−68)/68] of potential output can be recovered by removing inefficiency. Significant efficiency gains are made from diversification amongst these enterprises. Also, the education of farmers and the female labour input significantly improve efficiency whilst larger operation size reduces efficiency. The key policy implication is that the diversification of enterprises, particularly the rice–carp combination, is beneficial and should be promoted. Also investment in education and creation of a hired labour market for females would improve technical efficiency.
Starting Page	665
Ending Page	682
Page Count	18
File Format	PDF
ISSN	09676120
Journal	Aquaculture International
Volume Number	19
Issue Number	4
e-ISSN	1573143X
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-10-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Diversification economies Technical efficiency Gher Blue-green revolution Bangladesh Freshwater & Marine Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Agronomy and Crop Science

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