| To foster new drivers of agricultural economy and promote high-quality agricultural development is an important way to solve the problems affecting agriculture,rural areas and farmers and achieve common prosperity.Compared with other industries,agriculture is easily disturbed by disaster factors such as climate change,and has strong natural dependence,vulnerability and risk uncertainty.The key to the transformation from traditional agriculture to modern agriculture and the realization of endogenous growth lies in the improvement of infrastructure.However,the long construction cycle and low investment benefits of agriculture lead to insufficient financing of agricultural infrastructure and hinder the orderly development of investment projects.Diversification of investment subjects is a new idea to solve the problem of insufficient investment attraction in agricultural development,PPP investment and financing mechanism emerged at the right moment.The PPP financing mechanism is the government and social capital,long-term cooperation,construction and operation of the projects funded by social capital to provide advanced management technology,the government departments in accordance with the law and regulation,according to regulation and to return a new form of social capital in accordance with the performance,solve the pure reliance on the government construction,the phenomenon of the lack of funding,under the supervision and guidance of the government and social capital operation,It also takes into account the public welfare of public infrastructure.Agricultural PPP is the application of PPP model in the agricultural field,which can effectively stimulate the vitality of rural market,revitalize the capital stock,and help the reform of agricultural investment and financing mechanism while ensuring the maximization of farmers’ interests.It is a great opportunity for agricultural development.In order to grasp the investment and financing situation of modern agriculture,this paper will first define the supply and demand situation of agricultural infrastructure and public services through the description of the current situation.Secondly,combined with the data listed by the PPP Center of the Ministry of Finance,the development status of PPP and China’s modern agricultural PPP is compared and sorted out,the characteristics of modern agricultural PPP investment and financing mechanism are analyzed and the existing problems are found.Furthermore,based on grounded theory,NVivo software is used to clarify the action path of agricultural PPP through qualitative analysis,and it is illustrated with specific cases.Furthermore,the dual difference method is used to empirically analyze the impact of modern agricultural PPP and verify the action paths obtained from grounded theory.Finally,in order to promote the development of modern agricultural PPP,the supporting policies for the operation process of modern agricultural PPP are put forward.The main conclusions are as follows :(1)although agricultural investment increases year by year,the proportion of agricultural investment in total social investment and agricultural output value in GDP still do not match,and the overall shortage of agricultural capital stock leads to the low level of agricultural investment and the ability of agriculture to cope with climate disasters needs to be improved.(2)to compare the PPP projects and agricultural PPP projects in the project quantity,amount,scale,progress,distribution and the differences of form a complete set of services,found that the number,the total project amount less,agriculture PPP project progress is slow,but a single project size,region and industry distribution is relatively concentrated,and form a complete set of laws,there aren’t many service institutions and experts.(3)Based on the analysis of problems existing in agricultural PPP projects based on the development status of agricultural PPP projects,it is found that agricultural PPP projects have the following problems: small number of projects,slow progress of projects,unmatched project policy environment,and low efficiency of project management and operation.(4)Qualitative analysis and coding concluded that the role paths of agricultural PPP projects include:optimization of agricultural infrastructure and public service supply effect,industrial cultivation effect,targeted poverty alleviation effect,agricultural development effect through science and education,and environmental protection effect.(5)The treatment group and the control group divided the regions with or without agricultural PPP projects found that agricultural PPP projects contributed to economic growth.After eliminating the sample selection bias,the empirical results still showed that the effect of agricultural PPP projects on economic growth was significantly positive,and the mechanism test proved that the five running paths of agricultural PPP were valid. |