[Show abstract][Hide abstract] ABSTRACT: This article suggests a method for introducing a stochastic element into Farrell measures of technical efficiency as calculated via linear programming techniques. Specifically, a bootstrap of the original efficiency scores is performed to derive confidence intervals and a measure of bias for the scores. The bootstrap generates these measures of statistical precision for the ``nonstochastic'' efficiency measures by using computational power to derive empirical distributions for the efficiency measures.
Journal of Productivity Analysis 01/1997; 8(1). · 0.87 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: This article investigates the efficiency of intensive, semi-intensive, and extensive shrimp
farming practices as well as the difference between the upstream and downstream efficiency of shrimp
farms in the Mekong River Delta (MRD), Vietnam. Our article is the first to compare the efficiency
of the 3 shrimp practices and investigate the difference between the efficiency of downstream and
upstream farms. The efficiency of shrimp farms is measured using group-frontier and meta-frontier
analysis on a sample of 292 farms. The results show that, on average, shrimp farms are inefficient;
extensive farms are more efficient than intensive and semi-intensive farms; and, controlling for
key socio-economic factors, upstream farms are more efficient than downstream farms, suggesting
that pollution from upstream farms may influence shrimp farm efficiency. The results give some
direction for improvement and some evidence to shrimp farmers and policymakers in the MRD
to take the pollution problem seriously and find solutions for more sustainable development.
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.