Journal of productivity analysis. 1996;7(2-3):187-212. doi: 10.1007/bf00157041 Q21.82025
A general framework for frontier estimation with panel data
DOI: 10.1007/bf00157041
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Journal of productivity analysis. 1996;7(2-3):187-212. doi: 10.1007/bf00157041 Q21.82025
DOI: 10.1007/bf00157041
摘要 查看摘要