Staying afloat: The effect of algae contamination on housing prices
Staying afloat: The effect of algae contamination on housing prices
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维持生计：藻类污染对房价的影响
DOI：
10.1111/ajae.12285
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发表时间：
2022
影响因子：
4.2
通讯作者：
Klaiber H. Allen
中科院分区：
文献类型：
--
作者：
Wolf David;Gopalakrishnan Sathya;Klaiber H. Allen
自 2000 年代初以来，伊利湖经历了前所未有的有害藻华，促使美国和加拿大于 2012 年签署了五大湖水质协议，旨在将全湖磷含量减少 40%。人们对这项协议带来的经济利益知之甚少，尤其是对近湖房主而言。我们通过将 2003 年至 2015 年俄亥俄州伊利湖周边七个县的住房交易与使用遥感图像的水质测量联系起来，提供了有关有害藻华清理益处的关键信息。我们利用源自水文过程的工具变量进一步控制内源藻类的生产，这些水文过程将莫米河径流与伊利湖的营养物浓度联系起来。使用半参数方法，我们发现有害藻华对房价的影响在空间上仅限于伊利湖 1.2 公里以内的房产。对于普通的湖边房主来说，藻类浓度增加 1μg/L 预计会使房产价值下降 1.7%（2205 美元）。总的来说，履行《五大湖水质协议》每年将带来高达4290万美元的效益，完全覆盖目前每年用于改善水质的支出。
Lake Erie has experienced unprecedented harmful algal blooms since the early 2000s, prompting the 2012 Great Lakes Water Quality Agreement between the United States and Canada, which aims to reduce lake‐wide phosphorous loadings by 40%. Little is known about the economic benefits from this agreement, especially to near lake homeowners. We provide key information on the benefits of harmful algal bloom cleanup by linking housing transactions in 2003 to 2015 from seven Ohio counties bordering Lake Erie with measures of water quality using remote‐sensing images. We further control for endogenous algae production using instrumental variables derived from hydrological processes that link Maumee River runoff to nutrient concentrations in Lake Erie. Using a semiparametric approach, we find the impact of harmful algal blooms on housing prices is spatially limited to properties within 1.2 km of Lake Erie. For the average near lake homeowner, a 1 μg/L increase in algae concentrations is expected to decrease property values by 1.7% ($2205). In aggregate, fulfilling the Great Lakes Water Quality Agreement will provide a yearly benefit of up to $42.9 million, fully covering the current annual expenditure on water quality improvement.