对林价的分析研究,一直是我国林业经济界的热点问题之一。诸多研究论文,可以说“定性有余而定量不足”。这里译介的虽然是原木出材率(the overrun ratio)变动影响立木价的理论模型,但作者在分析问题、构建模型过程中的技巧,对我们的研究多少会有些帮助。原木出材率是指每单位原木投入(原木规格标准)生产的锯材量(制材单位标准)。在美国,已有资料表明,此指标在不断提高。其原因是多方面的,使其中技术进步和原木检尺起点提高是两个根本原因。而研究又表明,后者的影响甚微。那么,由于技术进步而提高的 The analysis of forest price has always been one of the hot issues in China’s forestry economy. Many research papers, can be said that “qualitative and quantitative deficiencies.” Although the translation here refers to the theoretical model that affects the price of timber by changing the overrun ratio, the author’s skill in analyzing problems and building models will be somewhat helpful to our research. Log output rate refers to the amount of sawnwood produced per unit of log input (log standard). In the United States, there is information that this indicator is constantly improving. The reasons are many, so that the technological progress and the starting point for raising wooden logs are the two root causes. The research shows that the latter has little effect. Well, thanks to advances in technology