农村水利多主体供给效率比较与协同供给例证分析

Comparative Analysis on Multi-Agent Supply Efficiency of Rural Water Conservancy and Case Study on the Collaborative Supply

为解决农村水利供给不足、供给效率不高等问题,需要改进农村水利供给模式。分别对政府供给、市场参与农村水利供给、协会及第三部门供给优势与效率损失进行分析。接着,采用向量自回归(VAR)方法,实证量化不同供给主体下的协同效应水平,得出国家财政投入与有效灌溉面积之间存在Granger因果关系,企业私人投资、银行贷款、农户自筹投资能够增加有效灌溉面积,但不能有效构成有效灌溉面积增加的Granger因果关系。因此,需要建立以政府投入为主导、政府与市场相结合农村水利供给体系。

In order to solve the low efficiency supply problems of the rural water conservancy, it is necessary to impt＇ove wa- ter conservancy supply mode. The paper respectively compares the advantages and efficiency loss of govermnent supplies, market supplies, associations, the third departments supply and water conservancy supply. Then, using vectur autoregres- sive （VAR） method, enlpirical quantitative synergies under different supply main body levels, it is concluded that between the state financial input and effective irrigation area there exists Granger causality; private investment, bank loans, farmers investment can increase the effective irrigation area, but it cant effectively constitute Granger causality with the iuereasing number of effective irrigation area. Therefore, we need to establish a supply system by taking government investment as the leading factor, and combing govermnent and market supply.