首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
文章以我国23个省份1998-2007年工业为研究对象,采用环境和能源约束下的前沿生产模型分析了我国工业增长模式及转型机制,结果表明:(1)省级人均产出的增长差异导致区域工业产出水平差距扩大,并使省级人均产出分布函数由1998年的单峰分布演进为2007年的双峰分布。相比于1998年,省级人均产出变异系数由0.3356上升至0.3487,技术效率变异系数由0.2961下降至0.2862。(2)13个省份技术进步对产出增长的贡献最大,9个省份要素投入深化对产出增长的贡献最大。(3)资本投入和能源消耗显著促进了产出增长,而二氧化硫排放显著阻碍了产出增长。资本投入、能源消耗和二氧化硫排放均显著阻碍了技术效率水平的提高。资本投入、能源消耗和二氧化硫排放均对要素投入深化效应有显著正向影响。  相似文献   

2.
As services are an important engine of growth for Singapore, this paper attempts to empirically investigate the sources of output growth in this sector to shed light on the debate sparked off by Krugman (1994) on the miraculous or mythical growth of Singapore and the other newly industralizing Southeast Asian economies. This is done by using the stochastic production frontier model with panel data. Unlike existing studies which used the conventional growth accounting approach to decompose output growth into just input growth and total factor productivity (TFP) growth, this approach further decomposes TFP growth into technological progress and changes in technical efficiency.  相似文献   

3.
This article investigates the sources and determinants of output growth of Italian manufacturing firms. Applying stochastic frontier techniques, we decompose output growth into factor accumulation and TFP growth for the period 1998–2003. TFP growth is further decomposed into technological change, efficiency change and scale effects. Two key results emerge from the analysis. After confirming that both input accumulation and TFP growth are important in explaining output growth, we show that efficiency change (technological catch-up) is the most significant component of TFP growth in explaining output growth distribution. Furthermore, using a specific model of the asymmetric error component, we find that R&D spillovers, banking efficiency and public infrastructures have statistically significant and economically relevant effects on technological catch-up.  相似文献   

4.
Total factor productivity growth of the five ASEAN founding members is estimated by decomposing total factor productivity growth into technical efficiency and technological progress. By using the stochastic frontier model with individual‐specific temporal pattern of technical efficiency for the period of 1981–2003, the present paper identifies the unique temporal pattern of productivity changes in each country, to analyze the relationship between country characteristics and the inherent efficiency and productivity changes. The empirical results indicate that over the study period, growth in Singapore and Malaysia was largely driven by both technological progress and input accumulation, whereas growth in Thailand was induced by an improvement in technical efficiency and through input accumulation.  相似文献   

5.
区域科技投入与经济增长关系的实证分析   总被引:7,自引:0,他引:7  
构建灰色关联度模型实证分析发现:科技经费投入、科技活动人员投入对产业经济增长有显著作用。进行区域科技投入与产业经济关系聚类分析可把我国分为三类典型区域。对于第一类地区,科技经费投入,尤其是R&D经费对第三产业的投入效率更高,在该类地区应加大科技经费的投入;对于第三类地区,R&D人员全时当量对第一产业的投入效率更高,在该类地区应加大科技活动人员的投入。  相似文献   

6.
安徽省近年来一直很重视财政科技投入力度,但财政科技投入的逐年增加并没有引导全社会研发投入有相应幅度的增加,这是因为对财政科技投入的效率和产出效果没有专业的评价,导致投入产出效率不高。本文运用数据包络(DEA)方法,通过建立绩效评价指标体系,从横向和纵向两个维度分别对安徽省16个地市和2007-2017年安徽省地方财政科技投入产出进行绩效评价,评价结果显示2007-2017年安徽省地方财政科技投入总体上的投入产出综合效率表现不错,但是分地区的投入效率不够理想。因此建议政府部门优化财政资金管理体系、增加对基础性研究的财政投入、加强对市级财政科技投入的监管等,进一步提高安徽省地方财政科技投入效率。  相似文献   

7.
智能制造技术创新是持续推动制造业高质量发展的关键动力。为探究制造业技术需求、数字经济赋能对非市场与市场导向下智能制造技术创新的作用机制,基于技术创新需求拉动理论,引入数字经济赋能构建投入-产出两阶段模型。分析发现,当政府研发补贴较高时,劳动替代需求与智能制造技术创新投入呈倒U型相关,对智能制造研发投入产生挤出效应;以效率提升为主的技术市场需求通过影响企业智能制造技术创新投入,间接推动技术创新产出。有调节的中介模型检验表明,数字经济赋能正向调节市场导向的智能制造技术创新产出,但对非市场导向的技术创新不具赋能作用。在充分利用数字经济发展优势的同时,应依托需求拉动机制开发更多需求侧政策工具,进一步激发智能制造技术创新。  相似文献   

8.
根据2008年对山东寿光样本农户生产无公害黄瓜和西红柿的调研数据,运用数据包络分析法和随机前沿分析法测算了其生产的技术效率,分析了农户生产无公害蔬菜的技术效率的影响因素。结果表明:农户生产无公害蔬菜的平均技术效率低,主要原因是部分要素投入过剩和规模不经济;获取科技信息和建立稳定的销售渠道对提高农户生产无公害蔬菜的技术效率有显著的正效应;利用两种测算方法所得的结果具有一致性。  相似文献   

9.
创新、企业家活动配置与长期经济增长   总被引:13,自引:0,他引:13  
《经济研究》2007,42(8):82-94
本文继承并扩展了熊彼特关于企业家精神的思想,把企业家活动的配置引入内生技术创新模式。在本文中,企业家活动的配置决定了一个经济的R&D投入水平,技术水平和经济增长率。不同经济活动的报酬结构决定了企业家活动的配置,而且报酬结构是内生的,并且存在历史依赖性。本文的突破包括两个方面:一是把企业家活动的配置引入宏观的分析中,考察了企业家活动的配置对宏观总量的影响;二是把企业家活动的配置对经济活动影响的一般性分析引入创新活动分析中,考察了企业家活动的配置、相对报酬结构与技术创新水平之间的动态关系。本文的政策含义是,要提高经济中R&D投入水平,进而提高技术创新水平以及经济增长率,就必须通过政治、经济、法律和文化制度创新,营造激励创新的报酬结构,促使企业家更多地从事生产性的创新活动,经济才能打破低水平均衡陷阱,趋向较发达的均衡。本文对我国实施自主创新的国家战略具有重要的政策含义。  相似文献   

10.
The purpose of this study is to explore reasons for the decline in agricultural performance in Botswana that has occurred during the implementation of a variety of policy measures, as well as the introduction of new technologies, and to identify ways in which it might be reversed. Panel data from six regions in Botswana (period 1979–2012) is analyzed with a stochastic output distance function and inefficiency effects model. We decompose agricultural output growth into; total factor productivity (TFP ) and changes in input use (factors of production). TFP is further decomposed into scale effects, technical efficiency and technological change. The results show that over the study period agricultural output grew at a very low rate of 0.072 percent per year, which is largely due to a growth in factors of production at 0.071 percent per year rather than TFP growth (which declined at 0.003 percent per year). We found that the decline in productivity has been due to technological regress and low growth in technical efficiency and scale efficiency. Policy options aimed at improving agricultural productivity and output growth will require the strengthening of extension services; improving the agronomic and husbandry management skills of farmers through training; and by encouraging farmers to adopt and utilize technologies that have been provided under existing policy programs.  相似文献   

11.
This paper examines the technological development of the airport and the air transportation system in order to identify opportunities for increased growth and development. The paper identifies two approaches to accomodating growth, which it terms functional refinement and functional discovery. The former refers to incremental improvements, the latter to the discovery of new technological forms and functions. Functional refinements condition and frequently constrain efforts towards functional discovery. For example, efforts to advance “demand management” may not be beneficial for the exploration of new uses for air transportation technology. The paper examines how efforts towards functional refinement might be reoriented towards fostering functional discovery, identifies parallels between the air transportation system and other infrastructure systems, and examines how efforts towards functional refinement that lock out functional discovery run counter to powerful social pressures for flexible, specialized production.  相似文献   

12.
This article uses a semiparametric smooth coefficient model (SPSCM) to estimate TFP growth and its components (scale and technical change). The SPSCM is derived from a nonparametric specification of the production technology represented by an input distance function (IDF), using a growth formulation. The functional coefficients of the SPSCM come naturally from the model and are fully flexible in the sense that no functional form of the underlying production technology is used to derive them. Another advantage of the SPSCM is that it can estimate bias (input and scale) in technical change in a fully flexible manner. We also used a translog IDF framework to estimate TFP growth components. A panel of U.S. electricity generating plants for the period 1986?C1998 is used for this purpose. Comparing estimated TFP growth results from both parametric and semiparametric models against the Divisia TFP growth, we conclude that the SPSCM performs the best in tracking the temporal behavior of TFP growth.  相似文献   

13.
如何减缓能源消费的过快增长是应对能源安全和气候变化的重要课题。通过对投入产出分析原理和无残差的完全结构分解法(MRCI)量化分析发现,产出规模效应和生产结构效应对中国能源消费增长起到主导作用,是主要驱动因素,而中国能源强度效应能有效抑制中国能源消费的增长;人口规模效应和人均生活能耗效应对中国能源消费增长的影响相对较小,但也有一定的促进作用。因此,依靠技术创新、提高能源使用效率,控制人口增长、引导居民向低能耗方向发展有利于减少中国能源消费水平。  相似文献   

14.
This paper shows how the mechanisms of endogenous growth can readily be incorporated within old growth theory, thereby resolving the principal impasse that stymied old growth theory. The key mechanism is the technological progress function which was originally developed by Kaldor (1957). The growth effects of monetary and fiscal policy operate through three channels. The first is the 'portfolio composition' channel, with policy serving to alter the money-capital mix of portfolios; the second is the money in the production function channel, with policy serving to alter the relative use of money and capital as inputs; the third is the money in the technological progress function channel, with policy affecting the dynamic allocative efficiency of investment via its impact on the level of financial intermediation. Since money and capital both enter the technological progress function. policies that affect the demands for money and capital affect the steady state rate of growth.  相似文献   

15.
DEA方法在我国工业部分产业技术创新效率评价中的应用   总被引:2,自引:0,他引:2  
韩颖  徐佩川  梅开 《技术经济》2007,26(9):57-59116
技术进步是产业发展的最主要因素,而产业的技术创新是推动技术进步主要动力,于是在促进产业发展的同时要不断地进行技术创新。然而在进行技术创新的同时我们必须考虑技术创新的效率问题,本文通过数据包络(DEA)的方法对我国29个工业产业的技术创新效率进行了评价,并且从DEA有效性,规模收益情况和投入产出冗余三个方面做了分析。结果表明,我国工业产业技术创新效率普遍较低,规模收益状况不理想,投入冗余较多。  相似文献   

16.
河南省农业科技进步贡献率的测算和分析   总被引:3,自引:2,他引:1  
刘芳  李炳军 《技术经济》2010,29(12):74-76
本文运用改进的柯布-道格拉斯生产函数和索洛增长速度方程,对1985—2008年河南省农业科技进步对农业经济增长的贡献率进行了测算。研究结果表明,1985—2008年河南省农业科技进步对农业经济增长的贡献率达到46.47%,仅次于物资投入的贡献率,而劳动投入和土地的贡献率却很小;从经济增长发展阶段来看,"十五"期间河南省农业科技进步对农业经济增长的贡献率最大,达到55.08%,但没有呈现规律性的增长态势。  相似文献   

17.
关注中国各行业全球价值链位置对创新性效率的影响,基于新古典经济理论提出假设,采用非竞争性投入产出法计算中国19个代表性行业在全球价值链中的位置及变化趋势,测算其整体创新效率。进一步将创新效率分解为技术进步指数、规模效率指数、纯技术效率指数,通过观察分解变量值揭示行业差异。结果表明:研发阶段,处于全球价值链上游的行业,行业技术前沿水平上升,行业整体向前沿靠近的程度降低;生产阶段,处于全球价值链上游的行业,行业技术前沿水平下降,行业整体向前沿靠近的程度上升。  相似文献   

18.
This paper examines and applies the theoretical foundation of the decomposition of economic and productivity growth to the thirty provinces in China's post-reform economy. The four attributes of economic growth are input growth, adjusted scale effect, technical progress, and efficiency growth. A stochastic frontier model with a translog production and incorporated with human capital is used to estimate the growth attributes in China. The empirical results show that input growth is the major contributor to economic growth and human capital is inadequate even though it has a positive and significant effect on growth. Technical progress is the main contributor to productivity growth and the scale effect has become important in recent years. The impact of technical inefficiency is statistical insignificant in the sample period. The relevant policy implication for a sustainable post-reform China economy is the need to promote human capital accumulation and improvement in technical efficiency.  相似文献   

19.
This paper investigates the role of scale economies, technological growth and industrial structure in creating spatial variation in manufacturing labour and Total Factor (TFP) productivity in Britain. Separate estimates of a translog specification are presented for British manufacturing firms located in defined areas of the country over the period 1994–1998. The results show that TFP change due to scale economies and technological growth has been of much less important in influencing the output growth of manufacturing firms than input growth or industrial structure. Regarding the components of TFP, technological growth has been the dominant force at play. The analysis of average labour productivity identifies shifts to other factors of production and industrial structure as being the main determinants of change, scale economies appear to have had a marginal role. The results identify spatial patterns indicating that more favourable locational effects arise for firms in areas adjacent to large urban centres, rather than for those located within cities, on the extreme periphery of the urban hinterland, or in rural areas and smaller towns.  相似文献   

20.
我国技术进步对能源效率的影响——空间异质性视角   总被引:2,自引:1,他引:1  
姜磊  季民河 《技术经济》2011,30(11):73-78
利用2008年我国省级相关数据,建立了基于加权最小二乘法的空间变系数地理加权回归模型,研究了技术进步对能源效率的影响。研究结果显示:我国各省的技术进步明显促进了能源效率的提高;在改善能源效率方面,国内R&D投入的贡献比外商直接投资要大;与普通最小二乘估计模型相比,空间变系数地理加权回归模型的拟合优度更好,且基于后者的参数异质性估计结果显示,不同省域的技术进步在促进能源效率改善方面存在空间差异性。最后提出建议:加大国内R&D投入、依赖自主创新更有利于能源效率的改善;各地区应针对本地区的实际情况制定科研政策,以促使能源效率不断提高。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号