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Private and public willingness to pay for safety: A validity test

机译：私人和公共支付安全的意愿：有效性检验

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Stated preference (SP) methods are often used to elicit an affected population's preferences for, e.g., increased safety or better environmental quality. SP methods are based on hypothetical market scenarios which have advantages, since decision alternatives are known to the analysis, but also necessitate thorough validity tests of the results, since decisions are hypothetical. This study suggests a validity test based on theoretical predictions and empirical findings for private and public safety measures. According to the test, willingness to pay (WTP) for a public safety measure should exceed or be equal to the private one. Based on a rich data set eliciting both private and public WTP the results show that private WTP exceeds public WTP. Hence, the findings in this study highlight the importance of validity tests of preference estimates for safety, and suggest that WTP also for a private safety measure should be elicited in studies eliciting WTP for public safety measures, to allow for the validity test.
机译：陈述性偏好（SP）方法通常用于引起受影响人群的偏好，例如增加安全性或改善环境质量。 SP方法基于假设市场情景，该假设情景具有优势，因为分析可以知道决策的替代方法，但由于决策是假设的，因此还需要对结果进行全面的有效性检验。这项研究提出了基于理论预测和针对私人和公共安全措施的经验发现的有效性测试。根据测试，公共安全措施的支付意愿（WTP）应当超过或等于私人安全措施。基于引发私有和公共WTP的丰富数据集，结果表明私有WTP超过了公共WTP。因此，本研究的结果突出了对安全性偏好估计进行有效性测试的重要性，并建议在为公共安全措施引入WTP的研究中也应针对私人安全措施提出WTP，以进行有效性测试。

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