Early scholars paid more attention to the efficiency of scale and scope of efficiency, While recently the scholars pay more attention to the X-efficiency.

早期学者的研究多关注规模效率和范围效率，而近期学者们对X效率给予了更多的关注。

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Early scholars paid more attention to the efficiency of scale and scope of efficiency, While recently the scholars pay more attention to the X-efficiency.

早期学者的研究多关注规模效率和范围效率，而近期学者们对X效率给予了更多的关注。

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