由于公共物品的非排他性特征决定了其供给具有垄断性,而城市公共物品的供给和需求的相互作用引起其自然垄断边界的变化,进一步,又引起政府管制边界的变化,导致了政府放松管制和引入竞争。沈阳市自来水的供给可从引入竞争,建立科学的水价形成机制和管理体制,拓展融资渠道,改革股份制企业模式等方面来完善。 Because the non-exclusive characteristics of public goods determine the monopoly of their supply, the interaction between the supply and demand of urban public goods causes the change of their natural monopoly boundaries, which in turn leads to the change of government regulatory boundaries, which leads to the deregulation of the government and Introduce competition. The supply of tap water in Shenyang City can be improved through the introduction of competition, the establishment of a scientific water pricing mechanism and management system, the expansion of financing channels and the reform of the joint-stock enterprise model.