效率低下
面板数据
计量经济学
经济
生产(经济)
差异(会计)
截尾正态分布
功能(生物学)
随机建模
生产-可能性边界
无效假设
随机效应模型
边疆
数学
统计
微观经济学
医学
考古
生物
进化生物学
内科学
会计
历史
荟萃分析
作者
George E. Battese,Tim Coelli
摘要
A stochastic frontier production function is defined for panel data on firms, in which the non-negative technical inefficiency effects are assumed to be a function of firm-specific variables and time. The inefficiency effects are assumed to be independently distributed as truncations of normal distributions with constant variance, but with means which are a linear function of observable variables. This panel data model is an extension of recently proposed models for inefficiency effects in stochastic frontiers for cross-sectional data. An empirical application of the model is obtained using up to ten years of data on paddy farmers from an Indian village. The null hypotheses, that the inefficiency effects are not stochastic or do not depend on the farmer-specific variables and time of observation, are rejected for these data.
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