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英文文献：Valuing Private and Public Greenspace Using Remotely Sensed Vegetation Indices-利用遥感植被指数评估私人和公共绿地
英文文献作者：Bark-Hodgins, Rosalind H.,Osgood, Daniel E.,Colby, Bonnie G.
英文文献摘要：
In a typical metropolitan area, greenspace varies substantially in its quality and extent. Remotely sensed vegetation index data is used to characterize the heterogeneity in private and public greenspace (riparian corridors) in metropolitan Tucson, Arizona. This data set enables the researcher to test if: (1) greenness is a significant determinant of house price variation in this desert city; and (2) whether there is an interaction between public and private greenspace. Private greenspace amenities can be endogenously improved by homeowners as a complement or substitute for the greenspace that is publicly provided, whereas public greenspace might be exogenous or endogenous depending on households ability to pressure the local government to protect or restore public greenspace. The results of a Hausman test indicate that endogeneity is a problem in the dataset and therefore an instrumental variable two stage least squares estimation is used. The results of this analysis indicate that homebuyers in the study area have preferences for both greener lots and greener riparian corridors and that private and public greenspace appear to be substitutes. Results are robust across multiple identification strategies designed to address potential endogeneity. The study results could have fundamental implications for the efficient use of limited water supplies in this semi-arid metropolitan area.
在一个典型的都市区，绿地在质量和程度上存在很大差异。遥感植被指数数据用于描述亚利桑那州图森市的私人和公共绿地(河岸走廊)的异质性。该数据集使研究者能够检验:(1)绿色度是这个沙漠城市房价变化的重要决定因素;(2)公共绿地与私人绿地之间是否存在互动。私人绿地设施可以作为公共提供的绿地的补充或替代，而公共绿地可能是外生的，也可能是内生的，这取决于家庭施压当地政府保护或恢复公共绿地的能力。Hausman检验的结果表明，内生性是数据集的一个问题，因此使用工具变量两阶段最小二乘估计。研究结果表明，住宅购买者对绿色绿地和绿色河岸廊道均有偏好，而私人绿地和公共绿地似乎是两者的替代品。结果是稳健的跨多种识别策略设计，以解决潜在的内生性。该研究结果可能对这一半干旱城市地区有限的水资源的有效利用具有根本意义。
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