Pollution Trading in Water Quality Limited Areas: Use of Benefits Assessment and Cost-Effective Trading Ratios
提出一种水质交易设计，通过基于损害计算的空间交易比率实现社会成本效益，应用于俄亥俄河上游流域的合流污水溢流管理，表明可在不增加社会损害或降低水质的前提下显著节省合规成本。
<i>This paper proposes a water quality trading design that addresses common implementation problems. Trading ratios, which are calculated from damages integrated over each source’s spatial zone of influence, drive the system to a socially cost-effective outcome. The design is applied to combined sewer overflow management in the Upper Ohio River Basin, where trading ratios can vary significantly among trading partners. The analysis shows that significant compliance cost savings are possible without incurring a penalty in terms of social damages or overall water quality despite a higher level of discharge relative to the command and control option.</i>