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首页> 外文期刊>Journal of Environmental Management >Evaluating water quality investments using cost utility analysis
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Evaluating water quality investments using cost utility analysis

机译:使用成本效用分析评估水质投资

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This study borrows concepts from healthcare economics and uses cost utility analysis (CUA) to select an optimum portfolio of water quality enhancement projects in Perth, Western Australia. In CUA, costs are handled via standard discounted cash flow analysis, but the benefits, being intangible, are measured with a utility score. Our novel methodology combines CUA with a binary combinatorial optimisation solver, known as a 'knapsack algorithm', to identify the optimum portfolio of projects. We show how water quality projects can be selected to maximise an aggregate utility score while not exceeding a budget constraint. Our CUA model applies compromise programming (CP) to measure utility over multiple attributes in different units. CUA is shown to provide a transparent and analytically robust method to maximise benefits from water quality remediation investments under a constrained budget.
机译:这项研究借鉴了医疗保健经济学的概念,并使用成本效用分析(CUA)来选择西澳大利亚州珀斯的最佳水质改善项目组合。在CUA中,成本是通过标准的现金流量折现法处理的,但是无形的收益是通过效用得分来衡量的。我们新颖的方法将CUA与二进制组合优化求解器(称为“背包算法”)相结合,以识别最佳项目组合。我们展示了如何选择水质项目以在不超出预算约束的情况下最大化综合效用得分。我们的CUA模型应用折衷编程(CP)来衡量不同单位中多个属性的效用。事实证明,CUA提供了一种透明且分析能力强的方法,可以在预算有限的情况下最大程度地提高水质修复投资的效益。

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