Journal of productivity analysis. 2002;18(3):241-253. doi: 10.1023/a:1020638827640 Q21.82025

Heteroscedasticity and Non-Monotonic Efficiency Effects of a Stochastic Frontier Model

随机前沿模型的异质性和非单调效率效应

DOI: 10.1023/a:1020638827640

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