A Study On The Statistical Measurement Of The Development Level Of New Infrastructure And Its Effect On Expending Domestic Demand

China’s economic development has stepped into a new era and realized the transformation from high-speed growth to high-quality development.To stimulate domestic demand and rely more on domestic demand has become the inevitable requirement of high-quality development of China’s economy.It is the decisive factor to expand domestic demand that people have the will to demand and the ability to demand continuously.In December 2022,the Central Committee of the Communist Party of China(CPC)stated that the strategy of expanding domestic demand needs to give full play to the fundamental role of consumption and the key role of investment,as an important foundation to stimulate government investment,stimulate new consumption demand and promote industrial upgrading,new infrastructure is the joint point of promoting consumption and expanding investment,can become the biggest potential for expanding domestic demand.Based on the new-type infrastructure,the study of the impact of new infrastructure on domestic demand not only meets the needs of social development,but also provides a new reference for solving the problem of insufficient domestic demand.Based on the research results of predecessors,this thesis defines the connotation of new-type infrastructure and domestic demand,and expounds the influence of new-type infrastructure on domestic demand from the two aspects of direct effect and spatial effect.Secondly,based on the three dimensions of information infrastructure,energy infrastructure and intelligent transportation infrastructure,the evaluation system of the development level of new-type infrastructure is established,and the index weights are calculated by the entropy method,measure 2016-2020 our country inland 31 provinces and cities new infrastructure development level.Finally,the empirical analysis is divided into three parts,one is to use the traditional panel model to estimate the direct impact of our new infrastructure on domestic demand and regional heterogeneity analysis.The second is the introduction of spatial effects,using the spatial panel model to investigate the impact of our new infrastructure on domestic demand.Third,from the different dimensions of the new infrastructure and the composition of domestic demand,how the new infrastructure impact on domestic demand for structural effect decomposition.Through empirical analysis,this thesis draws the following conclusions:(1)The development level of new infrastructure in our country shows a rising trend on the whole,but there is a big difference in space,showing a trend of high east and low west.In addition,also carries on the inspection to our country domestic demand present situation,according to the domestic demand structural analysis,discovered that has the phenomenon which the investment rate is high,the consumption rate is low,this shows that the deficiency of domestic demand in our country mainly lies in the deficiency of consumption,the imbalance between investment demand and consumption demand.(2)To study the direct impact of new infrastructure on domestic demand without considering the spatial effect,the regression results show that the impact coefficient of new infrastructure on domestic demand is significantly positive,it shows that the new infrastructure has a significant positive effect on domestic demand.According to the regional difference of the development level of the new infrastructure,it is divided into three parts: the east,the middle and the west,the construction of new infrastructure in the middle and east of these three regions can promote the level of domestic demand,and it has the strongest effect on domestic demand,which is obviously higher than that in other regions.(3)According to the MOLAIN index,there is a significant spatial autocorrelation in the level of domestic demand in our country,showing the clustering between high-value areas and high-value areas,and between low-value areas and low-value areas.In addition,considering the space effect,the new infrastructure has a significant positive promotion to our domestic demand level(4)According to the three dimensions of the new infrastructure,this thesis examines the impact of the different dimensions of the new infrastructure on domestic demand.The regression results show that information infrastructure,energy infrastructure and intelligent transportation infrastructure all have positive effects on domestic demand,but from their significance,only intelligent transportation infrastructure has a significant positive impact on domestic demand,which shows that intelligent transportation infrastructure has a significant role in promoting domestic demand,however,information infrastructure and energy infrastructure have no significant effect on domestic demand.(5)Based on the composition of domestic demand,study the impact of new infrastructure construction on consumption and investment.According to the regression results,the new infrastructure construction has a significant positive effect on both,in addition,the expansion of consumer demand will lead to the corresponding increase in investment demand.Based on the expansion of domestic demand for new infrastructure construction,the article puts forward the following policy recommendations: first,to promote new infrastructure construction,develop differentiated development strategy.Second,we should give full play to the guiding role of the government and focus on the construction of new-type infrastructure.Third,we should optimize the new infrastructure construction structure and give full play to its structural effect of expanding domestic demand.