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在信息不对称的条件下,中国现行的成本加成定价法将刺激城市供水企业产生两种“A-J”效应,而且目前的定价机制不仅没有考虑到供水的质量和外部效应,而且也没有考虑到自来水消费的公平等问题。将城市供水分为制水、供水和水处理等三个环节,通过改变折旧提取方法使消费者用水量与其供水成本相一致,重新修正供水价格,以实现对水价的综合管制,期望能给当前的中国城市供水定价机制改革以借鉴。
Under asymmetric information, China’s current cost-plus pricing method will stimulate two “AJ” effects for urban water supply enterprises, and the current pricing mechanism not only fails to consider the quality and externalities of water supply, nor does it have Taking into account the fairness of tap water consumption and other issues. The city’s water supply is divided into three parts: water production, water supply and water treatment. By changing depreciation and extraction methods, consumers’ water consumption is consistent with their water supply costs, and the water supply price is revised to realize comprehensive control on water prices. China’s urban water pricing mechanism reform to learn from.