技术积累提高了区域创新数量还是创新质量

在创新型国家建设背景下，提高创新质量至关重要。以高技术产业为例，综合采用联立方程模型、面板门槛模型、贝叶斯向量自回归模型，研究技术积累与创新数量、创新质量的关系。研究结果表明：技术积累对创新数量的贡献大于创新质量；创新数量与创新质量间的协调性不高；技术积累对创新数量的贡献中其自身、研发人员、创新质量的门槛效应呈递减趋势；随着创新数量增大，技术积累对创新数量的作用弹性逐步提高；当研发经费处于中等水平时技术积累对创新数量的弹性影响最大，对创新质量具有较强的规模经济效应。

Does Technology Accumulation Improve the Innovation Quantity or Quality

China's economic development is shifting from quantity expansion to quality improvement, and innovation quality are receiving increasing attention. Technology accumulation is the foundation of enterprise innovation, and enterprise innovation is an important embodiment of technology accumulation level. Existing studies pay little attention to the relationship between technology accumulation and innovation quantity, and there are just a few studies on the relationship between technology accumulation and innovation quality. Moreover, there is no in-depth study from the perspective of innovation quantity and innovation quality, leaving the following questions untapped: the effect mechanism of technology accumulation on innovation quantity and innovation quality, the linear relationship between technology accumulation and innovation quantity and innovation quality; the characteristics, rules and the existing problems of the effect of technology accumulation on the quantity and quality of innovation and so on. Research on related issues is not only conducive to promoting technological innovation mechanism and innovation quality theory, but also has important significance for strengthening technology accumulation, improving innovation quality and improving innovation efficiency of enterprises.#br#Taking the high-tech industries as the research object, this paper studies the relationship between technology accumulation and innovation quantity and innovation quality from the macro-regional perspective. It divides technology accumulation into production technology accumulation and R&D technology accumulation, and analyzes the mechanism of technology accumulation on the innovation quantity and innovation quality. The effect of technology accumulation on innovation quantity can be divided into three aspects. the first is the mechanism of the effect of traditional technology accumulation on the innovation quantity, including the improvement effect and the extension effect. The improvement effect refers to the continuous improvement along the original technological path to optimize the existing product design. The extension effect is the innovation through the change of utility model or appearance design while the existing technology remains unchanged. The second is to improve the number of innovations through the accumulation of relevant technologies. The third is to improve the process through the accumulation of production technology, so as to improve product quality, expand production capacity, reduce the rejection rate and then increase the number of innovations. The effect of technology accumulation on innovation quality is also divided into three aspects. The first is the accumulation of emerging technology with two functions: the source of new products and semi-finished products of new materials, and it has great significance for innovation quality; The second is the accumulation of major relevant technologies, and it produces major integrated innovations, such as manned spaceflight and high-speed rail technology. The third is the accumulation of major production technologies, resulting in new production methods and indicating the quality of innovation.#br#Based on the Griliches-Jaffe knowledge production function, this paper takes high-tech industry as an example and divides the scientific and technological innovation achievements into innovation quantity and innovation quality to establish a basic theoretical model. Firstly, the relationship between technology accumulation and innovation quantity and innovation quality is studied by using simultaneous equation model. Then, the panel threshold model is used to describe the relationship between technology accumulation and innovation quantity and innovation quality. Then, Bayesian vector autoregressive model is used to study the interaction between technology accumulation and innovation quantity and innovation quality. Finally, the robustness of the relationship between technology accumulation and innovation quantity and innovation quality is tested based on BP artificial neural network. The results show that at first the contribution of technology accumulation to innovation quantity is greater than that of innovation quality; second, the coordination level between innovation quantity and innovation quality is low; third, the contribution of technology accumulation to innovation quantity has a decreasing trend through the thresholds of technology accumulation itself, R&D personnel and innovation quality; fourth, with the increase of innovation quantity, the elasticity of technology accumulation to innovation quantity gradually increases; fifth,the elasticity of technology accumulation to innovation quantity reaches the highest when R&D expenditures are at a moderate level; sixth, the elasticity of technology accumulation to innovation quality has a strong scale economy effect.#br#This study creates a new field of research on the effect of technology accumulation on innovation quality, and the research method is comprehensive, systematic and robust. This research has important reference significance for improving China’s innovation quality.#br#