Abstract: the paper uses DEA approach, and the northeast national forest enterprises have been selected as the samplings, technical efficiency, scale efficiency and TFP has been analyzed.

• 摘要： 本文采用DEA分析方法，以东北国有林区企业为例，分析了其技术效率、规模经济、TFP等的变化趋势，结果表明：1）国有林区经营林地面积小的企业，存在报酬递增规律；