Specialization,Diversification And Urban Science And Technology Innovation

In the era of knowledge economy,relying only on the.traditional factors of production is not enough to support China's economy is sound and fast,too much capital and labor investment may produce excess productivity,the development of the economy will have a negative impact,which objectively Asking us to actively seek a solution.According to the total production function,the increase in output in addition to relying on capital,labor,technological progress is also an important factor.Technological progress can be through the change,the restructuring of traditional economic production methods to promote economic growth,but also through inventions to create a new way of economic development to enhance economic growth rate.In view of the slowdown in the recent slowdown in China's economy,the central government has put forward an innovation-driven development strategy to promote economic growth by improving the total factor productivity in China's production process.In the model of knowledge production function,R&D capital,science and technology R&D personnel,knowledge stock and foreign direct investment are all important factors influencing China's innovation output.Generally speaking,the more capital and knowledge investment The more the two will show a positive correlation.With the development of new economic geography,scholars have found that the dynamic externality of industrial space gathering is also an important factor to promote economic growth,and as the core competitiveness of the city,knowledge production and the city's industrial structure arrangements also There is a close relationship.In the process of economic activity to a certain area,the economic development will be the following three aspects of the scale effect:First,the matching effect:due to the geographical activities of the agglomeration brought about by the larger market,Elements to better match.Enterprises are easy to find in the market the required inputs and special skills of workers,to meet specific market needs,while workers are also easy to find the right business.This kind of matching effect reduces the transaction cost of the enterprise in the production process and improves the production efficiency of the enterprise.Second,the sharing:the supplier in the larger market demand,easier to play the economies of scale utility,reduce costs.Third,learning:whether it is exclusive or non-exclusive knowledge,industry concentration in the space can accelerate the spill of knowledge,employees and entrepreneurs to learn and exchange between each other easier.At the present stage,the proportion of the first and second industries will be reduced during the period when China is put into the transformation of the elements of material inputs.As the service industry needs to communicate with each other,the learning effect or the knowledge spillovers The role of the economy is becoming increasingly important.What kind of dynamic externality will have a positive impact on the innovation cause of our country,and with the development of our country's innovation and development strategy,what kind of dynamic externality will have a positive effect on the innovation of our country?In-depth implementation,to clarify this issue,to achieve sustainable economic development in China is particularly important.At the same time,China is now in a critical period driven by factor-driven to innovation-driven,and it is also clear that this issue can also help China's economy to achieve sound and rapid development.According to the existing literature,most of the research is carried out at the provincial level,by measuring the provincial general professional application data or new product value as a way of knowledge output,research industry structure to bring the knowledge spillover The relationship between knowledge production or the existence of economic growth.However,according to the study of space economics found that knowledge spillovers usually occur in the relatively small geographical space,the statistical caliber is too large,it is difficult to draw more reliable results.China's vast territory,with the same province within the economic environment there will be a big difference,but based on the availability of data,there is no scholar will study to the city level.To this end,as a supplement to this research field,this paper is based on the full text of the Chinese patent license publication patent database,the invention of patent licensing as a city of knowledge output,in accordance with the prefecture-level city name to identify the Chinese prefecture-level city from 1999-2014 Year annual patent licensing traffic,and to 1999 as the base period,the use of perpetual inventory method to calculate the annual level of the city's knowledge of the stock.The results show that the knowledge of the stock is not only in quantity or growth rate,in the country are heterogeneous.Through our calculations,we found that the stock of knowledge is concentrated in the eastern coastal cities,especially the Bohai Sea,the Yangtze River Delta and the Pearl River Delta and the central cities within the provinces.The knowledge stocks in the central region are mainly distributed in the provinces and cities Relatively developed areas of the economy;the western region due to data constraints,the law is not obvious.Secondly,according to the relevant ratio of the employment rate of each city in different cities,the specialization and diversification index are constructed on the basis of predecessors,and the statal 3 is used to plot the professional and diversified distribution of China's prefecture-level cities.It is found that the regions with higher diversification index are mainly distributed in the eastern coastal cities,and the areas with high specialization index are mainly distributed in the central and western regions,which is consistent with our intuitive experience.Because the eastern region of economic development,has formed a relatively complete industrial system,industrial development is relatively more balanced,and the central and western regions due to conditions,can only develop some specific.industries,which will lead to the central and western regions of the city Professional index is relatively high,the eastern region of the city's diversification index higher.Finally,the knowledge stock and specialization and diversification index are introduced into the knowledge production,and the influence of the current industrial structure arrangement on the knowledge production in our country is tested empirically.The results show that there is a positive relationship between specialization and knowledge production in the whole sample regression.There is no obvious relationship between diversification and knowledge output.Knowledge stock has a significant effect on the production of knowledge,the greater the knowledge stock,the greater the impact on knowledge production.In the regional regression analysis,the knowledge production and specialization and diversification of the eastern,central and western regions are the same as the whole sample,and the knowledge stock is heterogeneous.In addition,according to the regression results,in the whole sample and the regional regression,China's real economy is more support for the Jones type of production function,that is,China's knowledge output does not exist in the scale effect.At the end of the article,the robustness of the knowledge production function is tested by using the knowledge stock under different depreciation rate and the maximum specialization index,which proves the robustness of the results.At the same time,the corresponding policy suggestions are put forward according to the results obtained in this paper.