Fixed‐Effect Estimation of Highly Mobile Production Technologies
研究了生产函数中随时间、空间和个体变化的固定效应估计方法，无需对效应做参数假设，并应用于白令海底层拖网渔船的捕捞函数估计，发现2002至2004年间船舶个体效应未发生变化且不显著。
We consider fixed‐effect estimation of a production function where inputs and outputs vary over time, space, and individual, and identify estimates of time‐varying individual effects, without parametric assumptions on the effects. We discuss sufficient conditions for unbiasedness and for consistency and asymptotic normality along the spatial dimension. Results are applied to estimation of a harvest function for bottom trawler fishing vessels in the flatfish and groundfish fisheries of the Bering Sea. We conclude that vessel individual effects did not change between 2002 and 2004. Ranking and selection theory determines that individual effects are not statistically significant across vessels.