A Difficulty with the Travel Cost Method
A Difficulty with the Travel Cost Method
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差旅成本法的难点
DOI：
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发表时间：
1994
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影响因子：
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通讯作者：
A. Randall
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文献类型：
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作者：
A. Randall
旅行成本法 (TCM) 研究人员必须用研究人员分配的访问成本估算来代替可观察的休闲访问价格。我认为，访问成本本质上是主观的，但只要成本随着旅行距离的增加而增加，通常是可以测量的。由此可见，传统中医只能得出通常可测量的福利估计。中医的家庭生产函数公式只是通过施加严格的、不可检验的分析限制来“解决”这个问题。 TCM 不能作为评估娱乐效益的独立技术；相反，它必须使用通过根本不同的方法生成的信息进行校准。
Instead of observable prices of recreational visits, travel cost method (TCM) researchers are obliged to substitute researcher-assigned visitation cost estimates. I argue that visitation costs are inherently subjective, but are ordinally measurable so long as the cost increases with distance travelled. It follows that traditional TCM yields only ordinally measurable welfare estimates. The household production function formulation of TCM "resolves" this problem only by imposing severe and untestable analytical restrictions. TCM cannot serve as a stand-alone technique for estimating recreation benefits; rather, it must be calibrated using information generated with fundamentally different methods.