公共物品公共性的变化及其有效提供

在一端为公共物品 ,一端为私人物品的物品序列中 ,同一物品的相对位置会因为排他性技术水平的不同而表现出不确定性 ,导致物品公共性的不断变化。这种位置变化决定了对于公共物品提供者的选择 ,改变了政府提供公共物品的传统观点。据此 ,公共物品提供的理论基础应是公共物品提供的经济发展观 :依据公共物品在不同阶段特性的改变选择不同的提供者。这就为非政府组织、私人提供公共物品准备了条件。在中国城市大力引进非政府组织提供城市各种公共物品的同时 ,广大农村公共物品的提供在现阶段只能由政府来提供

On the Change of the Public Goods Characteristics and it''''s Provision

In a goods list, the position of the goods is various because of the development of excludability technology, and this reduces the change of the goods characteristics.The providers of the public goods are selected by the goods characteristics which changes the traditional theory: the government is an exclusive provider of the public goods. The theoretical foundation of the provision of the public goods is the economic developing theory. The government, non government organizations and private enterprises are able to provide public goods. In China, there are a lot of urban public goods produced by private organizations while the rural public goods, presently, should be provided by the government.