在公共物品的“多中心”供给模式中,供给过程往往被划分为供应和生产两个环节,并且分别被赋予了不同的职能定位,这种分离试图为应对公共物品通常供给不足的问题提供解决方案。然而,从公共选择的视角来看,以效率为核心的生产对供应的反馈作用、对公共物品的产出有可能产生影响,表现为有关公共物品决策的政治过程中的“俘获”行为加深,导致供给产出量的扭曲。在我国地方公共物品的供给实践中,这种现象表现为“政绩工程”的产生,即作为公共物品供应者的地方政府受到作为生产者的营利性组织“俘获”行为的影响,导致某些公共效用低下的公共物品产出过剩。因此,实行供应与生产相分离必须以公众偏好更有效地表达为前提,确保更具有公共性的公共选择结果,同时加强对政府采购的监管。 In the “multi-center” supply model of public goods, the supply process is often divided into two stages of supply and production, and each is given a different functional orientation. This separation attempts to cope with the problem of insufficient supply of public goods provide the solution. However, from the perspective of public choice, the feedback effect of supply-centered production on efficiency may have an impact on the output of public goods, which is manifested as “capture ” behavior in the political process related to public goods decision-making Deepen, leading to supply and demand distortion. In the supply of local public goods in our country, this phenomenon is manifested in the emergence of “performance engineering”, in which the local government as the supplier of public goods is affected by the profit-making organization “capture” which is the producer, Resulting in overproduction of some public goods with low public utility. Therefore, the separation of supply from production must be based on the premise that public preferences should be more effectively expressed to ensure a more publicized outcome of public choice and to strengthen the regulation of government procurement.