Productivity of hired and family labour and determinants of technical inefficiency in Ghana's fish farms
2010
Onumah, E.E.,Georg-August Univ., Goettingen (Germany). Dept. of Agricultural Economics and Rural Development | Bruemmer, B.,Georg-August Univ., Goettingen (Germany). Dept. of Agricultural Economics and Rural Development | Hoerstgen-Schwark, G.,Georg-August Univ., Goettingen (Germany). Dept. of Animal Sciences
This paper examines the productivity of hired and family labour and the determinants of the technical efficiency of fish farms in Ghana. A modified Cobb-Douglas stochastic frontier production function which accounts for zero usage of family and hired labour is employed on cross-sectional data of 150 farmers collected in 2007. The results reveal that family labour, hired labour, feed, seed, land, other costs and extension visit have a reasserting influence on fish farm production. Findings also show that family and hired labour used for fish farming production in Ghana may be equally productive. The combined effects of operational and farm specific factors (age, experience, land, gender, pond type and education) influence the technical inefficiency although individual effects of some variables may not be significant. Mean technical efficiency is estimated to be 79 percent. Given the present state of technology and input level, the possibility of enhancing production can be achieved by reducing technical inefficiency by 21 percent through adoption of practices of the best fish farms.
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