| Over the past 40 years of reform and opening up,China’s economy has grown rapidly.The liberation and development of social productive forces have created rich social material wealth,and the country’s overall strength has been significantly improved.As the construction of socialism with Chinese characteristics enters a new era,the main social contradiction in our country has been transformed into a contradiction between the people’s growing need for a better life and unbalanced and inadequate development.Especially in recent years,problems such as Sino-US trade frictions and the rise of trade protectionism have followed one after another,and the uncertainty of the international environment has also increased sharply,which has caused a huge impact on my country’s foreign trade.With the global spread of the new crown pneumonia epidemic in early 2020,the external environment has further deteriorated.In this context,the Party Central Committee reviewed the current situation and made a major strategic decision to build a new development pattern with domestic and international double cycles as the main body,and promote the economy to a higher level through domestic highquality development.In recent years,residents’ demand for public services has continued to increase,and the structure of demand for social products and services is in the process of shifting from material consumption to service-based consumption,which is directly reflected in the medical,education,pension,and cultural services.The demand continues to increase.However,with the acceleration of my country’s urbanization process,the contradiction between the supply and demand of social infrastructure such as health,education,culture,sports,and social security is becoming increasingly prominent,such as insufficient coverage of urban medical facilities,chaotic medical order,poor medical treatment environment,and educational facilities.Problems such as insufficient supply of social infrastructure such as shortages and poor equipment.Social infrastructure is the main carrier for the government to provide public services such as medical care,technology,education,and culture,and its supply level directly affects the quality of public services provided by the government.Under the background of changes in the main contradictions of our society and the establishment of a new development pattern in which the double cycle promotes each other in the new era,how to improve my country’s social infrastructure investment policy according to the actual situation and enhance the actual effect of social infrastructure is more Effectively providing basic public services and providing high-quality kinetic energy for economic and social development are the main considerations of this article.By sorting out and summarizing the existing literature,most of the current academic research on infrastructure is concentrated on economic infrastructure,relatively neglecting the attention to social infrastructure,and the literature on the effect evaluation of infrastructure policies focuses more on the research focus.In terms of economic effects,there are relatively few studies on its social effects,and the literature on social effects focuses on the research of single goals such as poverty alleviation and income gap reduction.With the complex changes of the social environment in the new era,the government goal and responsibility system framework that only relies on a single goal as infrastructure policy evaluation has been inconsistent with actual needs.The infrastructure policy evaluation system should shift from the traditional single-effect goal to multi-effect integration.The construction of the target system.In addition,the existing literature focuses more on the infrastructure as a whole,or conducts research on a single type of infrastructure in the whole,and relatively lacks the literature from the perspective of infrastructure structure,such as the literature on the comparison of the implementation effects of different types of infrastructure policies.With the change of time and space and other factors,the policy effects of different types of infrastructure are not static.In order to effectively improve the overall use efficiency of government infrastructure investment funds,it is reasonable to judge the implementation effects of infrastructure policies from a relatively dynamic perspective..At present,there is a lack of official statistical data for the estimation of the stock of infrastructure,including the stock of social infrastructure.The existing literature uses more of the substitute variables of infrastructure as the evaluation index of the policy effect.The index selection method is highly subjective,and the stock of infrastructure is used.Data can more objectively judge the effect of infrastructure policies.Based on the above background,this article is based on people-oriented thinking,supported by economic growth theory,development economics theory,human capital theory,socialist harmonious society theory,etc.,while considering the economic effects of policies and social development goals,the research focuses on In terms of the economic and social dual effects of social infrastructure,research is carried out on the path,influence mechanism,and change trend of the economic and social effects of social infrastructure.This article introduces the idea of structural adjustment of infrastructure policy,fully takes into account time and space factors,and conducts a more comprehensive analysis of the economic and social effects of economic and social infrastructures,and draws some details by region and time.The conclusions of this article have relatively enriched the literature on the structural adjustment of infrastructure.In addition,this article estimates the stock of various types of infrastructure in my country over the years,and uses this as the main data support for the empirical analysis.The main analysis parts of this article are arranged as follows:First,this article explores the mechanism and internal mechanism of the economic and social effects of my country’s social infrastructure.Use historical data to visually describe the development facts of my country’s social infrastructure investment entities,changes in project funding sources,changes in the proportion of urban investment,and changes in the proportion of social fixed asset investment.Measure and analyze the coordinated development model of supply and demand for my country’s four types of social infrastructure,clarify the actual supply and demand coordination level and supply and demand status of my country’s four types of social infrastructure,and estimate the society at the national and inter-provincial levels through the perpetual inventory method.The stock of type and economical infrastructure provides corresponding realistic background and data support for empirical analysis.Secondly,this article is divided into three parts for empirical analysis.On the empirical aspect of economic effects,empirical analysis of the transmission path of the economic effects of social infrastructures by constructing structural equation models,empirical testing of the economic effects of social infrastructures through panel models,and comprehensive consideration of officials’ promotion pressures,resource endowments and financial markets,etc.Factors,to investigate the regional heterogeneity of the economic effects of social infrastructure.In terms of social effects,scientifically designed comprehensive indicators of a harmonious society covering factors such as social justice,life order,and social stability as basic data to measure the social effects of my country’s social infrastructure,the externalities and external spillovers to the social effects of China’s social infrastructure The effect is measured,and the social effect of my country’s social infrastructure is empirically analyzed by time and region.In terms of comprehensive economic and social effects,it constructs comprehensive economic and social evaluation indicators,measures the economic effects,social effects,and comprehensive economic and social effects of social infrastructure,and analyzes its dynamic changes.In addition,considering that there may be differences in the effects of economic infrastructure and social infrastructure,this article further analyzes the differences in the economic and social effects of the two types of infrastructure in the empirical part,so as to better improve the social economy for social infrastructure The situation provides reference.Finally,based on the analysis conclusions of this article,policy recommendations are put forward on how to improve my country’s social infrastructure investment.The main conclusions obtained in this paper are as follows:(1)Social infrastructure produces economic effects through direct and indirect effects,and the overall economic effects are positive.(2)The social effect of social infrastructure is significant,and there is an obvious positive spatial spillover effect.(3)The economic and social effects of my country’s social infrastructure are on the rise as a whole,and there are certain regional differences in their actual effects.(4)The actual effects of the economic and social effects of the two types of infrastructure have differences in time and space,as well as their respective comparative advantages.(5)The overall supply-demand coordination level of my country’s four types of social infrastructure is on the rise,and there are differences in time and space in actual supply and demand.In general,our country’s social infrastructure has obvious economic and social effects.Compared with the effects of economic infrastructure,it has unique advantages in different aspects.In terms of infrastructure investment policies,it is necessary to increase the intensity of social infrastructure investment,increase policy emphasis on social infrastructure,strengthen the enthusiasm of the central and local social infrastructure construction,and improve the overall supply level of social infrastructure.In policy adjustments,it is necessary to fully consider regional differences,adjust my country’s existing infrastructure investment policies according to actual needs,consider new factors emerging in the new era and the new era,comprehensively formulate infrastructure policy objectives and investment directions,and establish a dynamic The infrastructure policy decision-making mechanism conducts a comprehensive and dynamic evaluation of policy effects.Only in this way can the efficiency of the use of fiscal funds be fundamentally improved and the government’s policy functions can be exerted more effectively. |