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研究目的:解决《土地投入对中国二三产业发展贡献的定量研究》一文中的部分遗留问题,探索土地要素对中国二三产业发展贡献的定量化评估方法。研究方法:CD模型和面板数据分析。研究结果:模型对样本数据的拟合(F检验)及各变量的回归系数(t检验)均达到极显著水平,初步解决了前文回归系数的检验问题。1996—2004年土地、资本和劳动力三要素对中国二三产业产值的弹性系数分别为0.823、0.211和0.174,对二三产业的贡献率分别为4.38%、30.74%和2.08%,三要素投入的不均衡是它们贡献率不均衡的主要原因。
The purpose of this study is to solve some of the remaining problems in the article “Quantitative Research on the Contribution of Land Investment to the Development of Secondary and Tertiary Industries in China” and to explore a quantitative assessment method of the contribution of land elements to the development of secondary and tertiary industries in China. Research Methods: CD Models and Panel Data Analysis. Results: The fitting of the model to the sample data (F test) and the regression coefficient (t test) of each variable reached the extremely significant level, which initially solved the test problem of regression coefficient. The elasticity coefficients of the three elements of land, capital and labor force to the output value of the second and third industries in China from 1996 to 2004 are 0.823, 0.211 and 0.174, respectively. The contribution rates to the second and third industries are 4.38%, 30.74% and 2.08% respectively. Unevenness is the main reason for their uneven contribution rate.