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21.
在GWR模型的基础上建立了基于空间面板数据的地理加权回归模型CTWR,并对我国区域R&D全要素生产率进行了测算.研究表明:GTWR模型比OLS模型模拟结果更为理想;空间联系程度对R&D全要素生产率有一定程度的影响,OLS估计得到的我国区域R&D全要素生产率水平低于实际水平;我国区域R&D全要素生产率增长主要是由R&D资本驱动的,而R&D人员投入甚至是阻碍因素. 相似文献
22.
从技术创新活动的投入与产出两个角度,基于中国工业细分行业2004—2011年的面板数据实证分析我国自由贸易的技术创新效应。研究表明,自由贸易对我国工业行业的技术创新活动带来了正的影响,但这种影响效应表现出明显的行业异质性特征;自由贸易对技术创新的影响存在显著的阶段性差异,其对创新活动投入的影响远大于创新活动产出;自由贸易与研发投入和研发产出之间均呈现"倒U"型非线性关系,即随着自由贸易水平的提高,其对技术创新产出的影响有着先提高后降低的趋势,各细分行业也呈现出显著的异质门槛效应。 相似文献
23.
How to promote green technology innovation has attracted the attention of governments and academia at present. The 19th National Congress of the Communist Party of China pointed out that, we should accelerate green development and promote enterprises to carry out green technology innovation. Some scholars have begun to explore how to speed up green technology innovation from different dimensions, such as environmental regulation and government support, including OFDI as one important channel of international technology spillover. Under one belt and one road construction, the strategy of "going out" are being pushed forward. China has become the second largest OFDI country in the world, and it has profound impact on both the world′s economic development and itself. It is particularly noteworthy that the adverse effects of rapidly growing OFDI on domestic green technology innovation cannot be ignored. Unfortunately, the research on the relationship between OFDI and green technology innovation in China is just in beginning, and there is still a lot of controversy, especially the lack of heterogeneous dynamic response based on the nonlinear perspective to explore the impact of OFDI on the efficiency of domestic green innovation. As well, does the rapid increase of OFDI reverse promote the efficiency of green innovation in China, and what is the effect? If there is a positive impact, how can it be strengthened? What are the dynamic evolution characteristics and internal constraint mechanism of OFDI′s reverse green innovation effect? We need objective answer to the above questions with great significance to China′s strategic coordination of opening up and green development.
Literature analysis shows that, there is no consensus on whether OFDI reversely promotes green innovation in home country, and further research is necessary. In particular, there are still some shortcomings. Firstly, most scholars mainly study the relationship between OFDI and home country green innovation from a linear perspective, but pay less attention to the nonlinear dynamic effect of OFDI reverse green innovation. Secondly, the existing research on how to effectively release the regulatory factors of OFDI reverse green innovation spillover is very limited, especially the lack of heterogeneous dynamic constraint mechanism of OFDI reverse green innovation spillover in China. The main innovation of this paper is that, from the perspective of heterogeneous nonlinear dynamics, it provides a new perspective for a deep understanding of the internal evolution mechanism of China′s OFDI reverse green innovation spillover, and also provides some policy implications for China to correctly the dynamic relationship between OFDI and domestic green innovation in China new era.
Based on Chinese 2004-2017 inter-provincial panel data, and using the threshold regression technology, this paper empirically examines the heterogeneous dynamic effects of OFDI′s reverse green innovation and its regulatory mechanism. The study results shows that: OFDI has significantly promoted domestic green innovation efficiency, and the reverse green innovation spillover of OFDI in the eastern and central regions is significantly stronger than the western region; OFDI′s reverse green innovation spillover shows dynamic evolution process from weak to strong, but only appears in the western region, and the central and eastern regions show positive "U"-shaped nonlinear characteristic; OFDI′s reverse green innovation spillover has heterogeneous dynamic strengthening mechanism. Under the constraints of industrial upgrading, urbanization, financial development, and intellectual property rights protection, there is positive and increasing marginal efficiency evolution process. Both IPR protection and trade opening are regulated with inverted "U"-shaped dynamic characteristics. At this stage, only by continuously accelerating industrial upgrading and urbanization, continuously strengthening financial support and intellectual property protection, while maintaining moderate level of trade opening and government science and technology funding, OFDI′s green innovation spillover could be released in maximum.
The conclusions of this paper reveal the following policy implications: firstly, under one belt and one road construction, as well as opening up policy will continue to enhance the OFDI scale to promote green innovation development in the opposite direction. OFDI has become the main driving force for the development of green innovation in China. At the same time, we should implement more targeted regional policy on the relationship between OFDI and green innovation, especially focus on releasing the spillover bonus of OFDI reverse green innovation in the East and central region, while the west region should pay more attention on its own absorption capacity building. Secondly, China′s OFDI reverse green innovation spillover has dynamic evolution characteristics of positive and increasing marginal efficiency, but functions in different regions. We should pay attention on the heterogeneous dynamic characteristics. The effect of OFDI reverse green innovation spillover in the eastern and central region is quite significant, there is still a large space for improvement in the positive impact. Although the negative green innovation effect of OFDI in the western region has the nonlinear characteristics of positive and increasing marginal efficiency, the positive effect is relatively limited at this stage. In the future, we should implement differentiated and dynamic OFDI and green innovation policies to avoid the loss of OFDI′s reverse green effect caused by homogenization and static policies. Thirdly, we should continue to improve the spillover effect of OFDI′s reverse green innovation by accelerating the process of industrial upgrading and urbanization, strengthening financial support, government funding for science and technology, intellectual property protection, and promoting trade opening in long term, we should also make trade openness and government funding for science and technology at a moderate level. In addition, the dynamic strengthening effect of above factors on OFDI′s reverse green innovation spillover should not be ignored. In additional to government funding and trade openness, other factors on OFDI reverse green innovation spillover are not effective. Therefore, in order to adjust the relationship between OFDI and green innovation scientifically in China new era, we should pay more attention to the integration of OFDI and the above factors, to release the reverse green innovation spillover bonus of OFDI in maximum. 相似文献
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“双碳”目标为新时代高质量发展注入绿色基因,科学降碳至关重要。文章基于理论模型阐释经济增长与碳排放之间的原生演化关系,以“波特假说”剖析降碳减排对创新驱动经济增长的双向影响机制。实证研究发现：随着经济产出规模扩张,单位碳排放的经济贡献有所提升,而产业结构在低阶水平时,需要一定碳排放容忍度才能驱动结构升级。同时,CO2排放强度对创新驱动经济增长的调节效应具有较为复杂的动态演化规律,适度降碳约束能够撬动技术创新的最佳外延驱动力,而碳排放强度对创新驱动产业结构升级的调节影响存在边际递减特征。此外,CO2排放强度的调节效应具有时空异质性,创新驱动力最佳的门槛阈值在经济产出维度呈现出东高西低的顺势传导轨迹,而低强度CO2排放约束普遍更有利于创新驱动和产业升级。由此,“双碳”推行要科学研判、循序渐进,在降碳挤压、经济增长与创新驱动之间,寻求多维平衡和动态优化的实施策略。 相似文献
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“互联网+”发展直接关乎新时代下中国经济转型升级的成效,科学理解“互联网+”综合水平的时空分异及演进机制具有重要意义。基于2006—2017年中国省际面板数据,运用全局主成分分析法构建“互联网+”综合水平指数,采用Dagum基尼系数对“互联网+”综合水平的空间差异及来源进行测度,并对其演进趋势进行检验。结果表明：全国及三大地区“互联网+”综合水平均呈现逐年的稳步上升态势,且具有典型的“东高西低、两极分化”的空间非均衡特征;“互联网+”综合水平的总体空间差异主要来源于地区间差距,地区内差距的作用次之,而不同地区间交叉重叠的影响极小;解决东部与西部、东部与中部地区“互联网+”综合水平的地区间差距是当前我国“互联网+”发展的重中之重;全国及三大地区“互联网+”综合水平并没有呈现显著的绝对β收敛,条件β收敛也仅出现在全国层面和东部地区,这预示着缩小“互联网+”的空间差距单纯依靠市场的自我调节机制是不可行的,尤为需要国家的宏观调控。研究框架和结果为更加精确和理性地解决“互联网+”差距问题、统筹实施“互联网+”战略和网络强国战略提供借鉴参考。 相似文献
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围绕中国是否存在“污染避难所”效应,学者们展开了激烈的讨论,但尚未形成一致性的研究结论。基于2005-2010年中国37个工业行业的面板数据,对环境规制是否会影响FDI流入进行了实证检验。主要结论有：一是环境规制对工业行业引进外资具有一定的负向效应,且在考虑企业规模、市场化水平、行业利润等其他因素时,这种效应更为明显,即“污染避难所”假说在我国工业行业层面得到了验证;二是环境规制对FDI的影响具有显著的行业异质性,在技术密集度较低、环境污染程度较高、R&D强度较低、垄断水平较低的行业,环境规制对FDI的抑制作用会更加显著。 相似文献
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基于价值链的视角,构建了研发创新活动的双环节理论框架,在此基础上采用基于道格拉斯生产函数的随机前沿技术对2004—2009年的中国工业行业研发创新双环节效率及其影响因素进行了实证分析。研究发现:中国工业行业研发创新转化效率大于转换效率,但转换效率总体呈现上升趋势,转化效率却出现下滑势头;中国工业研发创新双环节效率存在较大的行业差异,其中转换效率的行业差异在不断扩大,而转化效率的行业差异在不断缩小;企业规模、市场竞争、FDI是促进研发创新双环节效率提高的主要因素;国有产权对研发创新效率的抑制作用仅体现在转化环节,R&D投入对研发创新效率的促进作用则仅体现在转换环节;国外技术引进有利于行业研发创新转化效率的提升,而对转换效率的改善具有抑制作用;中国工业行业消化吸收能力较弱,但双环节的研发创新活动并未显现FDI逆向技术扩散的不利局面。 相似文献
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基于价值链视角,将中国工业行业的技术创新过程分解为技术开发和技术转化两个阶段,在构建环境规制对两阶段技术创新能力影响的理论框架基础上,利用2004-2011年中国工业37个细分行业的面板数据,通过面板协整检验和误差修正模型,实证考察了环境规制对技术创新能力影响的异质性效应。研究发现:(1)环境规制对技术创新能力具有显著的长短期促进效应,但存在明显的行业异质性;(2)环境规制对技术转化能力的长期促进效应大于技术开发能力,但不同行业的阶段异质性效应明显;(3)环境规制对技术创新能力的长期均衡具有显著的短期修正效应,技术创新能力向均衡状态的调整速度存在明显的行业异质性;(4)部分行业环境规制对技术创新能力的促进效应出现了长短期不一致的情况。最后,基于价值链视角提出了促进环境规制与技术创新能力协调发展的政策建议。 相似文献
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