陕西工业TFP的变动特征与行业差异的实证分析--基于面板数据修正和DEA--Malmquist指数法

The Variation Trendency and Inter-industry Differences of Industrial TFP in Shaanxi Province:Based on Panel Data Correction and DEA-Malmquist Index Method

对陕西工业面板数据的缺失部分做出填补和修正后,运用非参数Malmquist生产率指数法对各行业的TFP进行测度和分解,分析各指数变动的差异和成因。文章发现:主导产业以技术进步推动TFP提高的模式为主;由规模效率降低并引发技术效率不足是阻碍部分行业TFP改善的首要因素;有色冶金工业高度依赖省外金属矿石供应,产业脆弱性突显;产品结构不合理、产业链不完善、自主研发能力薄弱等问题是电子通讯、医药、食品、纺织服装等部门共同的限制因素。

Based on the non-parametric Malmquist productivity index method, the total factor productivity of each industry was measured and decomposed, we find that the TFP growth of leading industries primari- ly promoted by industrial technological progress; reducing technical efficiency draged by low scale efficien- cy is the primary inhibitors to TFP improvement of some indusitries; over-reliance on external metallic ore resources makes non-ferrous metallurgical industry vulnerable to the impact of raw material price risk, and the industry vulnerability highlights; the unreasonable product structure, incomplete industrial chain and weak independent R＆D ability are common problems in which the electronic ＆ communication, medi- cines, foods, textile＆ apparel and other departments get stuck.