在区域技术效率的比较研究中，大多数文献采用 SFA 方法进行分析，一般认为东中西部技术效率水平存在显著差异且东部与中西部的差距呈扩大化趋势。然而 SFA 方法将所有区域看作一个整体，忽略了地区间技术条件的差异性，使得区域间技术效率的比较缺乏可靠性，因此本文采用共同前沿方法（MFA），将各区域置于共同前沿面上进行比较分析。通过构建超越对数生产函数模型，利用我国1998～2012年装备制造业东中西部的相关数据研究发现，我国区域间技术条件存在显著差异，中西部装备制造业技术效率水平呈现向东部追赶的效应而非扩大趋势，有异于大部分采用 SFA 方法研究的结果。%In a comparative study of regional technical efficiency ,most of the literature was analyzed using the SFA and is generally believed that the technical efficiency of East ,Middle and West was significant different , and the gap between the East and the Midwest showed expansion trend .However ,the SFA treats different areas as a group ,ignoring the differences of technical conditions between re-gions ,making inter - regional technical efficiency comparative lack of reliability .This paper uses a Meta - frontier approach (MFA) , and places different regions on the Meta - frontier to do the comparative analysis .By building translog production function model ,using the da-ta of equipment manufacturing industry in 1998 ~ 2012 of East ,Middle and West , this paper found that there are significant differences be-tween the technical conditions of the regions ,and the technical efficiency of equipment manufacturing industry in Midwest showed catch -up effect to the East rather than expanding tendency ,which is different from most of the research using SFA .
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