Farm-specific technical efficiency in the England and Wales dairy sector
利用1976/7、1980/1和1984/5年三个分层随机样本数据，估计随机生产函数并计算每个农场的相对技术效率，发现效率均值上升、方差下降，且配额制度加速了这一趋势。
This paper seeks to measure farm-specific technical efficiencies in the England and Wales dairy sector at discrete points in time. Stochastic production functions are estimated econometrically using Milk Marketing Board data for three stratified random samples of dairy farms in 1976/6, 1980/1 and 1984/5. From these results, a measure of relative technical efficiency is calculated for each farm in each year. The three distributions of technical efficiencies are examined. The distribution for 1976/7 has the lowest mean and highest variance; that for 1984/5 has the highest mean and lowest variance. The results indicate an increase in relative technical efficiency which the imposition of quotas has accelerated.