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Abstract
This study measures the output oriented technical efficiency of vessels and factors impacting a vessel’s technical efficiency amongst purse seiners in a Nha Trang fishery, Vietnam. In this study, a deterministic two-stage Data Development Analysis (DEA) approach was adopted. The current study was based on a survey of costs and earnings from 52 purse seiners in Nha Trang in 2016. While assuming variable returns to scale, mean technical efficiency of a vessel was found to be 0,872, and this figure decreased to 0,848 under the hypothesis of constant returns to scale. The average scale efficiency of this fishing fleet was 97,2%. Skippers’fishing experience and family size (a proxy as a payment for crews) are factors affecting the technical efficiency at the significance levels of 5% and 10%. The result also shows that 37% of the vessel owners should not invest more inputs into their vessels because of leading to economic waste. The study suggests that instead of the financial support, Vietnamese government can support such as providing the information on the state of the fish stock, weather forecast for fishermen to avoid increasing the fishing effort.
Keywords: Purse seine fleet, technical efficiency, scale efficiency, Data Development Analysis (DEA)