Journal of productivity analysis. 1999;12(1):45-53. doi: 10.1023/a:1007851023468 Q21.82025
An Average Derivative Estimation of Stochastic Frontiers
随机前沿的平均导数估计
DOI: 10.1023/a:1007851023468
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Journal of productivity analysis. 1999;12(1):45-53. doi: 10.1023/a:1007851023468 Q21.82025
DOI: 10.1023/a:1007851023468
摘要 查看摘要