R&D投资效率的影响——基于异质性随机前沿函数的实证研究

Journal of Central University of Finance & Economics ›› 2017, Vol. 0 ›› Issue (11) : 27-37.

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PDF(459 KB)
Journal of Central University of Finance & Economics ›› 2017, Vol. 0 ›› Issue (11) : 27-37.

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