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The Individual Travel Cost Method with Consumer-Specific Values of Travel Time Savings

机译:具有消费者特定的旅行时间价值的个人旅行成本方法

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The treatment of the opportunity cost of travel time in travel cost models has been an area of research interest for many decades. Our analysis develops a methodology to combine the travel distance and travel time data with respondent-specific estimates of the value of travel time savings (VTTS). The individual VTTS are elicited with the use of discrete choice stated preference methods. The travel time valuation procedure is integrated into the travel cost valuation exercise to create a two-equation structural model of site valuation. Since the travel time equation of the structural model incorporates individual preference heterogeneity, the full structure model provides a travel cost site demand model based upon individualized values of time. The methodology is illustrated in a study of recreational birdwatching, more specifically, visits to a 'stork village' in Poland. We show that the usual practice of basing respondents' VTTS on 1/3 of their wage rate is largely unfounded and propose alternatives-including a separate component of the travel cost survey aimed at valuation of respondents' VTTS or, as a second best, asking if they wish if their journey was shorter and for those who do-use full hourly wage as an indicator of their VTTS.
机译:在旅行成本模型中的旅行时间的机会成本的处理是几十年来研究兴趣领域。我们的分析开发了一种将旅行距离和旅行时间数据组合的方法,以及对旅行时间节省(VTT)的价值的特定于受访者的特定估计。通过使用离散选择所说的偏好方法引发各个VTT。旅行时间估值程序纳入旅行成本估值练习,以创造一个两方面估值结构模型。由于结构模型的行进时间方程包括单独的偏好异质性,因此全结构模型基于个性化时间值提供旅行成本位点需求模型。该方法在休闲观鸟的研究中说明,更具体地,访问波兰的“鹳村”。我们表明,在其工资率的1/3上基于1/3的常规实践主要是毫无根据的,并提出替代方案 - 包括旅行成本调查的单独组成部分,旨在估值受访者的VTT,或者作为第二个估值,询问如果他们希望他们的旅程较短,那么那些使用整个小时工资作为其VTTS的指标。

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